UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

______________________________________

SCHEDULE 14A

______________________________________

Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934

Filed by the Registrant		☒
Filed by a party other than the Registrant		☐

Check the appropriate box:

☐		Preliminary Proxy Statement
☐		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☒		Definitive Proxy Statement
☐		Definitive Additional Materials
☐		Soliciting Material under §240.14a-12

Dune Acquisition Corporation

(Name of Registrant as Specified In Its Charter)

_____________________________________________________________________________________________________________________________

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

☒		No fee required.
☐		Fee paid previously with preliminary materials
☐		Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

DUNE ACQUISITION CORPORATION
700 S. Rosemary Avenue, Suite 204
West Palm Beach, Florida 33401

NOTICE OF SPECIAL MEETING

TO BE HELD ON JUNE 14, 2022

TO THE STOCKHOLDERS DUNE ACQUISITION CORPORATION:

You are cordially invited to attend the special meeting (the “special meeting”) of stockholders of Dune Acquisition Corporation (the “Company,” “we,” “us” or “our”), to be held at 12:00 p.m., Eastern Time, on June 14, 2022. The special meeting will be held virtually, at https://www.cstproxy.com/duneacq/2022. At the special meeting, the stockholders will consider and vote upon the following proposals:

1. To amend (the “Extension Amendment”) the Company’s Amended and Restated Certificate of Incorporation (our “charter”) to extend the date by which the Company must consummate a business combination (as defined below) (the “Extension”) from June 22, 2022 (the date which is 18 months from the closing date of the Company’s initial public offering of our units (the “IPO”)) to December 22, 2023 (the date which is 36 months from the closing date of the IPO) (the “Extended Date”) (the “Extension Amendment Proposal”).

2. A proposal to approve the adjournment of the special meeting to a later date or dates, if necessary or appropriate, to permit further solicitation and vote of proxies in the event that there are insufficient votes for, or otherwise in connection with, the Extension Amendment Proposal (the “Adjournment Proposal”).

Each of the Extension Amendment Proposal and the Adjournment Proposal is more fully described in the accompanying proxy statement. Due to health concerns stemming from the COVID-19 pandemic, and to support the health and well-being of our stockholders, the special meeting will be a virtual meeting. You will be able to attend and participate in the special meeting online by visiting https://www.cstproxy.com/duneacq/2022. Please see “Questions and Answers about the Special Meeting — How do I attend the special meeting?” for more information.

THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS A VOTE “FOR” THE EXTENSION AMENDMENT PROPOSAL AND, IF PRESENTED, THE ADJOURNMENT PROPOSAL.

As previously announced, on October 12, 2021, the Company entered into an Agreement and Plan of Merger, by and among the Company, Dune Merger Sub, Inc., a Delaware corporation and a direct wholly-owned subsidiary of the Company (“Merger Sub”), Dune Merger Sub II, LLC, a Delaware limited liability company and direct, wholly-owned subsidiary of the Company (“Merger Sub II”), and TradeZero Holding Corp., a Delaware corporation (“TradeZero”), as amended by that certain First Amendment to the Agreement and Plan of Merger, dated as of January 26, 2022, by and among Dune, Merger Sub, Merger Sub II and TradeZero (as so amended, the “Merger Agreement”), pursuant to which, among other things, TradeZero would become a direct, wholly owned subsidiary of the Company. Moreover, on January 26, 2022, the Company filed a preliminary proxy statement on Schedule 14A with the United States Securities and Exchange Commission (the “SEC”) relating to the business combination with TradeZero (the “Deal Proxy Statement”).

On April 1, 2022, the Company, along with Merger Sub, Merger Sub II and Dune Acquisition Holdings LLC (our “Sponsor”, and collectively with the Company, Merger Sub and Merger Sub II, the “Dune Plaintiffs”) filed a four-count complaint in the Delaware Court of Chancery against TradeZero and Messrs. Pipitone, Ferrara, Muscatella, Choi, Koslow, Caruso and Corriveau (together, the “TradeZero Defendants”, each of whom are part of TradeZero’s management team. The Dune Plaintiffs bring claims for breach of contract, fraudulent inducement, fraudulent misrepresentation and unjust enrichment. On April 18, 2022, the Company issued a press release announcing the Dune Plaintiffs’ ongoing litigation against the TradeZero Defendants. On May 3, 2022, after careful consideration and consultation with the Company’s management and outside legal advisors, the Company’s board of directors (the “Board”), who had previously unanimously endorsed and approved of the business combination with TradeZero, announced that it had changed its recommendation to the Company’s stockholders and now unanimously recommends that the Company’s stockholders vote against the business combination with TradeZero. The Company intends to more fully describe the reasons for the Board’s change in recommendation in the next filing of the Deal Proxy Statement. On May 5, 2022, the TradeZero Defendants filed a motion to dismiss the Dune Plaintiff’s lawsuit.

The sole purpose of the Extension Amendment Proposal and, if presented, the Adjournment Proposal is to provide the Company with sufficient time to complete a merger, capital stock exchange, asset acquisition, stock purchase reorganization or similar business combination (a “business combination”). The Company’s IPO prospectus and charter provide that the Company has until June 22, 2022 (the date which is 18 months after the consummation of the IPO) to complete a business combination (the “Combination Period”). The Company’s Board currently believes that there will not be sufficient time within the Combination Period to complete a business combination.

The affirmative vote of 65% of the Company’s outstanding Class A common stock (the “public shares”) and Class B common stock (the “founder shares” and together with the public shares, the “common stock”), voting together as a single class, will be required to approve the Extension Amendment Proposal. Approval of the Extension Amendment Proposal is a condition to the implementation of the Extension. In addition, the Company will not proceed with the Extension if the number of redemptions of our public shares causes the Company to have less than $5,000,001 of net tangible assets following approval of the Extension Amendment Proposal.

Approval of the Adjournment Proposal requires the affirmative vote of the majority of the votes cast by stockholders represented in person or by proxy at the special meeting,

Our Board has fixed the close of business on May 13, 2022 as the record date for determining the Company’s stockholders entitled to receive notice of and vote at the special meeting and any adjournment thereof. Only holders of record of the Company’s common stock on that date are entitled to have their votes counted at the special meeting or any adjournment thereof. A complete list of stockholders of record entitled to vote at the special meeting will be available for ten days before the special meeting at the Company’s principal executive offices for inspection by stockholders during ordinary business hours for any purpose germane to the special meeting.

In connection with the Extension Amendment Proposal, if approved by the requisite vote of stockholders, holders of public shares (the “public stockholders”) may elect to redeem their public shares for a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account established by the Company in connection with its IPO (the “trust account”) as of two business days prior to such approval, including any interest earned on the funds held in the trust account (which interest shall be net of taxes payable), divided by the number of then outstanding public shares (the “Election”), regardless of whether such public stockholders vote on the Extension Amendment Proposal. However, the Company may not redeem our public shares in an amount that would cause our net tangible assets to be less than $5,000,001. If the Extension Amendment Proposal is approved by the requisite vote of stockholders, the remaining holders of public shares will retain the opportunity to have their public shares redeemed in conjunction with the consummation of a business combination, subject to any limitations set forth in our charter, as amended. In addition, public stockholders who vote for the Extension Amendment Proposal and do not make the Election would be entitled to have their public shares redeemed for cash if the Company has not completed a business combination by the Extended Date.

The Company estimates that the per-share price at which the public shares may be redeemed from cash held in the trust account will be approximately $10.00 at the time of the special meeting. The closing price of the Company’s Class A common stock on the Nasdaq Stock Market (“Nasdaq”) on May 13, 2022, the record date of the special meeting, was $9.96. Accordingly, if the market price were to remain the same until the date of the special meeting, exercising redemption rights would result in a public stockholder receiving approximately $0.04 more than if such stockholder sold the public shares in the open market. The Company cannot assure public stockholders that they will be able to sell their public shares in the open market, even if the market price per share is higher than the redemption price stated above, as there may not be sufficient liquidity in its securities when such stockholders wish to sell their shares.

The Adjournment Proposal, if adopted, will allow our Board to adjourn the special meeting to a later date or dates, if necessary or appropriate, to permit further solicitation of proxies. The Adjournment Proposal will only be presented to our stockholders in the event that there are insufficient votes for, or otherwise in connection with, the approval of the Extension Amendment Proposal.

If the Extension Amendment Proposal is not approved and the Company does not consummate a business combination within the Combination Period, as contemplated by our IPO prospectus and in accordance with our charter, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the funds held in the trust account and not previously released to us to pay our taxes (less up to $100,000 of interest to pay dissolution expenses), divided

by the number of then outstanding public shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the remaining stockholders and our Board, liquidate and dissolve, subject, in each case, to our obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. There will be no redemption rights or liquidating distributions with respect to our warrants, including the warrants included in the units sold in the IPO (the “public warrants”), which will expire worthless if we fail to complete an initial business combination within the Combination Period.

You are not being asked to vote on a business combination at this time. If the Extension is implemented and you do not elect to redeem your public shares in connection with the Extension, provided that you are a stockholder on the record date for a meeting to consider a business combination, you will retain the right to vote on a business combination when it is submitted to stockholders and the right to redeem your public shares for cash from the trust account in the event a business combination is approved and completed or the Company has not consummated a business combination by the Extended Date.

After careful consideration of all relevant factors, our Board has determined that the Extension Amendment Proposal and, if presented, the Adjournment Proposal are both advisable and recommends that you vote or give instruction to vote “FOR” the Extension Amendment Proposal and, if presented, the Adjournment Proposal.

Enclosed is the proxy statement containing detailed information concerning the Extension Amendment Proposal, Adjournment Proposal and the special meeting. Whether or not you plan to attend the special meeting, the Company urges you to read this material carefully and vote your shares.

On behalf of our board of directors, I would like to thank you for your support of Dune Acquisition Corp.

May 18, 2022		By Order of the Board of Directors,
		/s/ Carter Glatt
		Carter Glatt
		Chief Executive Officer and Director

Your vote is important. If you are a stockholder of record, please sign, date and return your proxy card as soon as possible to make sure that your shares are represented at the special meeting. If you are a stockholder of record, you may also cast your vote virtually at the special meeting. If your shares are held in an account at a brokerage firm or bank, you must instruct your broker or bank how to vote your shares, or you may cast your vote virtually at the special meeting by obtaining a proxy from your brokerage firm or bank. Your failure to vote or instruct your broker or bank how to vote will have the same effect as voting against the Extension Amendment Proposal, and an abstention will have the same effect as voting against the Extension Amendment Proposal. Abstentions will be counted in connection with the determination of whether a valid quorum is established but will have no effect on the outcome of the Adjournment Proposal.

Important Notice Regarding the Availability of Proxy Materials for the Special Meeting of Stockholders to be held on June 14, 2022: This notice of meeting and the accompanying proxy statement are available at https://www.cstproxy.com/duneacq/2022.

TO EXERCISE YOUR REDEMPTION RIGHTS, YOU MUST (1) IF YOU HOLD PUBLIC SHARES THROUGH UNITS, ELECT TO SEPARATE YOUR UNITS INTO THE UNDERLYING PUBLIC SHARES AND PUBLIC WARRANTS PRIOR TO EXERCISING YOUR REDEMPTION RIGHTS WITH RESPECT TO THE PUBLIC SHARES, (2) SUBMIT A WRITTEN REQUEST TO THE TRANSFER AGENT BY 5:00 P.M. ON JUNE 10, 2022, THE DATE THAT IS TWO BUSINESS DAYS PRIOR TO THE SCHEDULED VOTE AT THE SPECIAL MEETING, THAT YOUR PUBLIC SHARES BE REDEEMED FOR CASH, INCLUDING THE LEGAL NAME, PHONE NUMBER, AND ADDRESS OF THE BENEFICIAL OWNER OF THE SHARES FOR WHICH REDEMPTION IS REQUESTED, AND (3) DELIVER YOUR SHARES OF CLASS A COMMON STOCK TO THE TRANSFER AGENT, PHYSICALLY OR ELECTRONICALLY USING THE DEPOSITORY TRUST COMPANY’S DWAC (DEPOSIT WITHDRAWAL AT CUSTODIAN) SYSTEM, IN EACH CASE IN ACCORDANCE WITH THE PROCEDURES AND DEADLINES DESCRIBED IN THE ACCOMPANYING PROXY STATEMENT. IF YOU HOLD THE SHARES IN STREET NAME, YOU WILL NEED TO INSTRUCT THE ACCOUNT EXECUTIVE AT YOUR BANK OR BROKER TO WITHDRAW THE SHARES FROM YOUR ACCOUNT IN ORDER TO EXERCISE YOUR REDEMPTION RIGHTS.

Proxy Statement — Dated MAY 18, 2022

DUNE ACQUISITION CORPORATION
700 S. Rosemary Avenue, Suite 204
West Palm Beach, Florida 33401

PROXY STATEMENT FOR THE SPECIAL MEETING OF STOCKHOLDERS

TO BE HELD ON JUNE 14, 2022

The special meeting of stockholders (the “special meeting”) of Dune Acquisition Corporation (the “Company,” “we,” “us” or “our”), a Delaware corporation, will be held at 12:00 p.m., Eastern Time, on June 14, 2022. The special meeting will be held virtually, at https://www.cstproxy.com/duneacq/2022. At the special meeting, the stockholders will consider and vote upon the following proposals:

1.To amend (the “Extension Amendment”) the Company’s Amended and Restated Certificate of Incorporation (our “charter”) to extend the date by which the Company must consummate a business combination (as defined below) (the “Extension”) from June 22, 2022 (the date which is 18 months from the closing date of the Company’s initial public offering of our units (the “IPO”)) to December 22, 2023 (the date which is 36 months from the closing date of the IPO) (the “Extended Date”) (the “Extension Amendment Proposal”).

2. A proposal to approve the adjournment of the special meeting to a later date or dates, if necessary or appropriate, to permit further solicitation and vote of proxies in the event that there are insufficient votes for, or otherwise in connection with, the Extension Amendment Proposal (the “Adjournment Proposal”).

Each of the Extension Amendment Proposal and the Adjournment Proposal is more fully described herein. Due to health concerns stemming from the COVID-19 pandemic, and to support the health and well-being of our stockholders, the special meeting will be a virtual meeting. You will be able to attend and participate in the special meeting online by visiting https://www.cstproxy.com/duneacq/2022. Please see “Questions and Answers about the Special Meeting — How do I attend the special meeting?” for more information.

As previously announced, on October 12, 2021, the Company entered into an Agreement and Plan of Merger, by and among the Company, Dune Merger Sub, Inc., a Delaware corporation and a direct wholly-owned subsidiary of the Company (“Merger Sub”), Dune Merger Sub II, LLC, a Delaware limited liability company and direct, wholly-owned subsidiary of the Company (“Merger Sub II”), and TradeZero Holding Corp., a Delaware corporation (“TradeZero”), as amended by that certain First Amendment to the Agreement and Plan of Merger, dated as of January 26, 2022, by and among Dune, Merger Sub, Merger Sub II and TradeZero (as so amended, the “Merger Agreement”), pursuant to which, among other things, TradeZero would become a direct, wholly owned subsidiary of the Company. Moreover, on January 26, 2022, the Company filed a preliminary proxy statement on Schedule 14A with the United States Securities and Exchange Commission (the “SEC”) relating to the business combination with TradeZero (the “Deal Proxy Statement”).

On April 1, 2022, the Company, along with Merger Sub, Merger Sub II and Dune Acquisition Holdings LLC (our “Sponsor”, and collectively with the Company, Merger Sub and Merger Sub II, the “Dune Plaintiffs”) filed a four-count complaint in the Delaware Court of Chancery against TradeZero and Messrs. Pipitone, Ferrara, Muscatella, Choi, Koslow, Caruso and Corriveau (together, the “TradeZero Defendants”), each of whom are part of TradeZero’s management team. The Dune Plaintiffs bring claims for breach of contract, fraudulent inducement, fraudulent misrepresentation and unjust enrichment. On April 18, 2022, the Company issued a press release announcing the Dune Plaintiffs’ ongoing litigation against the TradeZero Defendants. On May 3, 2022, after careful consideration and consultation with the Company’s management and outside legal advisors, the Company’s board of directors (the “Board”), who had previously unanimously endorsed and approved of the business combination with TradeZero, announced that it had changed its recommendation to the Company’s stockholders and now unanimously recommends that the Company’s stockholders vote against the business combination with TradeZero. The Company intends to more fully describe the reasons for the Board’s change in recommendation in the next filing of the Deal Proxy Statement. On May 5, 2022, the TradeZero Defendants filed a motion to dismiss the Dune Plaintiff’s lawsuit.

The sole purpose of the Extension Amendment Proposal and, if presented, the Adjournment Proposal is to provide the Company with sufficient time to complete a merger, capital stock exchange, asset acquisition, stock purchase reorganization or similar business combination (a “business combination”). The Company’s IPO prospectus and charter provide that the Company has until June 22, 2022 (the date which is 18 months after the consummation of the IPO) to complete a business combination (the “Combination Period”). The Company’s Board currently believes that there will not be sufficient time within the Combination Period to complete a business combination.

The affirmative vote of 65% of the Company’s outstanding Class A common stock (the “public shares”) and Class B common stock (the “founder shares” and together with the public shares, the “common stock”), voting together as a single class, will be required to approve the Extension Amendment Proposal. Approval of the Extension Amendment is a condition to the implementation of the Extension. In addition, the Company will not proceed with the Extension if the number of redemptions of our public shares causes the Company to have less than $5,000,001 of net tangible assets following approval of the Extension Amendment Proposal.

Approval of the Adjournment Proposal requires the affirmative vote of the majority of the votes cast by stockholders represented in person or by proxy at the special meeting.

Our Board has fixed the close of business on May 13, 2022 as the record date for determining the Company’s stockholders entitled to receive notice of and vote at the special meeting and any adjournment thereof. Only holders of record of the Company’s common stock on that date are entitled to have their votes counted at the special meeting or any adjournment thereof. A complete list of stockholders of record entitled to vote at the special meeting will be available for ten days before the special meeting at the Company’s principal executive offices for inspection by stockholders during ordinary business hours for any purpose germane to the special meeting.

In connection with the Extension Amendment Proposal, if approved by the requisite vote of stockholders, holders of public shares (the “public stockholders”) may elect to redeem their public shares for a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account established by the Company in connection with its IPO (the “trust account”) as of two business days prior to such approval, including any interest earned on the funds held in the trust account (which interest shall be net of taxes payable), divided by the number of then outstanding public shares (the “Election”), regardless of whether such public stockholders vote on the Extension Amendment Proposal. However, the Company may not redeem our public shares in an amount that would cause our net tangible assets to be less than $5,000,001. If the Extension Amendment Proposal is approved by the requisite vote of stockholders, the remaining holders of public shares will retain the opportunity to have their public shares redeemed in conjunction with the consummation of a business combination, subject to any limitations set forth in our charter, as amended. In addition, public stockholders who vote for the Extension Amendment Proposal and do not make the Election would be entitled to have their public shares redeemed for cash if the Company has not completed a business combination by the Extended Date.

The withdrawal of funds from the trust account in connection with the Election will reduce the amount held in the trust account following the Election, and the amount remaining in the trust account after such withdrawal may be only a fraction of the $172,537,850.52 (including interest, but less the funds used to pay taxes) that was in the trust account as of the record date. In such event, the Company may still seek to obtain additional funds to complete a business combination, and there can be no assurance that such funds will be available on terms acceptable to the parties or at all.

The Company estimates that the per-share price at which the public shares may be redeemed from cash held in the trust account will be approximately $10.00 at the time of the special meeting. The closing price of the Company’s Class A common stock on the Nasdaq Stock Market (“Nasdaq”) on May 13, 2022, the record date of the special meeting, was $9.96. Accordingly, if the market price were to remain the same until the date of the special meeting, exercising redemption rights would result in a public stockholder receiving approximately $0.04 more than if such stockholder sold the public shares in the open market. The Company cannot assure public stockholders that they will be able to sell their public shares in the open market, even if the market price per share is higher than the redemption price stated above, as there may not be sufficient liquidity in its securities when such stockholders wish to sell their shares.

The Adjournment Proposal, if adopted, will allow our Board to adjourn the special meeting to a later date or dates, if necessary or appropriate, to permit further solicitation of proxies. The Adjournment Proposal will only be presented to our stockholders in the event that there are insufficient votes for, or otherwise in connection with, the approval of the Extension Amendment Proposal.

If the Extension Amendment Proposal is not approved and the Company does not consummate a business combination within the Combination Period, as contemplated by our IPO prospectus and in accordance with our charter, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the funds held in the trust account and not previously released to us to pay our taxes (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding public shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), and (iii) as promptly as

reasonably possible following such redemption, subject to the approval of the remaining stockholders and our Board, liquidate and dissolve, subject, in each case, to our obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. There will be no redemption rights or liquidating distributions with respect to our warrants, which will expire worthless if we fail to complete an initial business combination within the Combination Period.

Our initial stockholders, Sponsor, officers and directors have entered into a letter agreement with us, pursuant to which they have agreed to waive their redemption rights with respect to any founder shares and public shares they may hold in connection with a stockholder vote to approve an amendment to the Company’s charter.

Our Sponsor has agreed that it will be liable to the Company if and to the extent any claims by a third party for services rendered or products sold to the Company, or a prospective target business with which the Company has entered into a written letter of intent, confidentiality or similar agreement or business combination agreement, reduce the amount of funds in the trust account to below the lesser of (i) $10.00 per public share and (ii) the actual amount per public share held in the trust account as of the date of the liquidation of the trust account, if less than $10.00 per share due to reductions in the value of the trust assets, less taxes payable, provided that such liability will not apply to any claims by a third party or prospective target business who executed a waiver of any and all rights to the monies held in the trust account (whether or not such waiver is enforceable) nor will it apply to any claims under the Company’s indemnity of the underwriters of the IPO against certain liabilities, including liabilities under the Securities Act of 1933, as amended. However, we have not asked our Sponsor to reserve for such indemnification obligations, nor have we independently verified whether our Sponsor has sufficient funds to satisfy its indemnity obligations and believe that our Sponsor’s only assets are securities of the Company. Therefore, we cannot assure that its Sponsor would be able to satisfy those obligations.

Under the Delaware General Corporation Law (the “DGCL”), stockholders may be held liable for claims by third parties against a corporation to the extent of distributions received by them in a dissolution. If the corporation complies with certain procedures set forth in Section 280 of the DGCL intended to ensure that it makes reasonable provision for all claims against it, including a 60-day notice period during which any third-party claims can be brought against the corporation, a 90-day period during which the corporation may reject any claims brought, and an additional 150-day waiting period before any liquidating distributions are made to stockholders, any liability of stockholders with respect to a liquidating distribution is limited to the lesser of such stockholder’s pro rata share of the claim or the amount distributed to the stockholder, and any liability of the stockholder would be barred after the third anniversary of the dissolution.

However, because the Company will not be complying with Section 280 of the DGCL, Section 281(b) of the DGCL requires the Company to adopt a plan, based on facts known to the Company at such time that will provide for our payment of all existing and pending claims or claims that may be potentially brought against the Company within the subsequent ten years. However, because the Company is a blank check company, rather than an operating company, and our operations have been limited to searching for prospective target businesses to acquire, the only likely claims to arise would be from our vendors (such as lawyers, investment bankers, etc.) or prospective target businesses.

If the Extension Amendment Proposal is approved, such approval will constitute consent for the Company to (i) remove from the trust account an amount (the “Withdrawal Amount”) equal to the number of public shares properly redeemed multiplied by the per-share price, equal to the aggregate amount then on deposit in the trust account as of two business days prior to such approval, including any interest earned on the funds held in the trust account (which interest shall be net of taxes payable), divided by the number of then outstanding public shares and (ii) deliver to the holders of such redeemed public shares their portion of the Withdrawal Amount. The remainder of such funds shall remain in the trust account and be available for use by the Company to complete a business combination on or before the Extended Date. Holders of public shares who do not redeem their public shares now will retain their redemption rights and their ability to vote on a business combination through the Extended Date if the Extension Amendment Proposal is approved.

The record date for the special meeting is May 13, 2022. Record holders of the Company’s common stock at the close of business on the record date are entitled to vote or have their votes cast at the special meeting. On the record date, there were 17,250,000 outstanding shares of the Company’s Class A common stock and 4,312,500 outstanding shares of the Company’s Class B common stock. The Company’s warrants do not have voting rights in connection with either the Extension Amendment Proposal or, if presented, the Adjournment Proposal.

This proxy statement contains important information about the special meeting and the proposals to be voted on at the special meeting. Please read it carefully and vote your shares.

TABLE OF CONTENTS

		Page
FORWARD-LOOKING STATEMENTS		1
QUESTIONS AND ANSWERS ABOUT THE SPECIAL MEETING		2
The Company
THE SPECIAL MEETING		12
Date, Time, Place and Purpose of the Special Meeting		12
Voting Power; Record Date		12
Votes Required		12
Voting		12
Revocability of Proxies		13
Attendance at the Special Meeting		13
Solicitation of Proxies		13
No Right of Appraisal		14
Other Business		14
Principal Executive Offices		14
PROPOSAL NO. 1 — THE EXTENSION AMENDMENT		15
Background		15
The Extension Amendment		15
Reasons for the Proposal		16
Redemption Rights		17
Interests of the Company’s Directors and Executive Officers		18
U.S. Federal Income Tax Considerations		19
U.S. Holders		22
Non-U.S. Holders		23
Information Reporting and Backup Withholding		26
FATCA		26
Required Vote		26
Recommendation		27
PROPOSAL NO. 2 — THE ADJOURNMENT PROPOSAL		28
Overview		28
Consequences if the Adjournment Proposal Is Not Approved		28
Required Vote		28
Recommendation		28
PRINCIPAL STOCKHOLDERS		29
DELIVERY OF DOCUMENTS TO STOCKHOLDERS		30
WHERE YOU CAN FIND MORE INFORMATION		30
ANNEX A		A-1

FORWARD-LOOKING STATEMENTS

The statements contained in this proxy statement that are not purely historical are “forward-looking statements.” Our forward-looking statements include, but are not limited to, statements regarding our or our management team’s expectations, hopes, beliefs, intentions or strategies regarding the future. In addition, any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intends,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements in this proxy statement may include, without limitation, statements about:

• our ability to complete a business combination;

• the anticipated benefits of any business combination;

• our executive officers and directors allocating their time to other businesses and potentially having conflicts of interest with our business or in approving a business combination, as a result of which they would then receive expense reimbursements or other benefits;

• our potential ability to obtain additional financing, if needed, to complete a business combination;

• our public securities’ potential liquidity and trading;

• the use of proceeds not held in the trust account (as described herein) or available to us from interest income on the trust account balance; or

• our financial performance.

The forward-looking statements contained in this proxy statement are based on our current expectations and beliefs concerning future developments and their potential effects on us. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to, those factors described under the heading “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2021, filed with the SEC on March 29, 2022 and in the Deal Proxy Statement. Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

QUESTIONS AND ANSWERS ABOUT THE SPECIAL MEETING

These Questions and Answers are only summaries of the matters they discuss. They do not contain all of the information that may be important to you. You should read carefully the entire document, including the annexes to this proxy statement.

Why am I receiving this proxy statement?

This proxy statement and the enclosed proxy card are being sent to you in connection with the solicitation of proxies by our Board for use at the special meeting, or at any adjournments thereof. This proxy statement summarizes the information that you need to make an informed decision on the proposals to be considered at the special meeting.

The Company is a blank check company formed for the purpose of entering into a merger, share exchange, asset acquisition, stock purchase, recapitalization, reorganization or other similar business combination with one or more businesses or entities. On December 22, 2020, the Company consummated its IPO of 17,250,000 units (the “units”), each consisting of one share of Class A common stock (the “public shares”) and one-half of one redeemable warrant (the “public warrants”), including the issuance of 2,250,000 units as a result of the exercise of the underwriters’ over-allotment option in full at $10.00 per unit, generating gross proceeds of $172,500,000. Simultaneously with the closing of the IPO, the Company consummated the sale of an aggregate of 4,850,000 private placement warrants (the “private placement warrants”) at a price of $1.00 per warrant in a private placement to our Sponsor, generating gross proceeds to the Company of $4,850,000.

Prior to the consummation of the IPO, on July 10, 2020, we issued an aggregate of 3,737,500 founder shares to our Sponsor for an aggregate purchase price of $25,000 in cash. On December 17, 2020, pursuant to our amended and restated certificate of incorporation, each founder share outstanding immediately prior to December 17, 2020 was converted into one and two-thirteenths (12/13) shares of Class B common stock, resulting in our Sponsor holding 4,312,500 founder shares.

Following the closing of the IPO, a total of $172,500,000, comprised of $169,050,000 of the proceeds from the IPO (which amount includes $6,037,500 of the underwriters’ deferred discount) and $3,450,000 of the proceeds of the sale of the private placement warrants, was placed in the trust account, which was invested in U.S. government securities, within the meaning set forth in Section 2(a)(16) of the Investment Company Act, with a maturity of 185 days or less or in money market funds meeting certain conditions under Rule 2a-7 promulgated under the Investment Company Act which invest only in direct U.S. government treasury obligations. Except with respect to interest earned on the funds held in the trust account that may be released to us to pay our taxes, the proceeds from the IPO and the sale of the private placement warrants will not be released from the trust account until the earliest of (i) the completion of our initial business combination, (ii) the redemption of our public shares if we are unable to complete our initial business combination within the Combination Period, subject to applicable law, and (iii) the redemption of our public shares properly submitted in connection with a stockholder vote to amend our charter to modify the substance or timing of our obligation to redeem 100% of our public shares if we have not consummated an initial business combination within the Combination Period or with respect to any other material provisions relating to stockholders’ rights or pre-initial business combination activity.

Our Board has determined that the Company may not be able to complete a business combination within the Combination Period. Accordingly, our Board believes that it is in the best interests of the stockholders to continue the Company’s existence until the Extended Date in order to allow the Company more time to complete a business combination. Therefore, our Board is submitting the proposals described in this proxy statement for the stockholders to vote upon.

What is being voted on?

You are being asked to vote on each of the Extension Amendment Proposal and, if presented, the Adjournment Proposal. Both proposals are listed below:

1. The Extension Amendment Proposal: To amend our charter to extend the date by which the Company must consummate a business combination from June 22, 2022 (the date which is 18 months from the closing date of the IPO) to December 22, 2023 (the date which is 36 months from the closing date of the IPO).

2. The Adjournment Proposal: A proposal to approve the adjournment of the special meeting to a later date or dates, if necessary or appropriate, to permit further solicitation and vote of proxies in the event that there are insufficient votes for, or otherwise in connection with, the approval of the Extension Amendment Proposal.

What are the purposes of the Extension Amendment Proposal and the Adjournment Proposal?

The sole purposes of the Extension Amendment Proposal and, if presented, the Adjournment Proposal are to provide the Company with sufficient time to complete a business combination.

Approval of the Extension Amendment Proposal is a condition to the implementation of the Extension. The Company will not proceed with the Extension if redemptions of our public shares cause the Company to have less than $5,000,001 of net tangible assets following approval of the Extension Amendment Proposal.

If the Extension is implemented, such approval will constitute consent for the Company to remove the Withdrawal Amount from the trust account, deliver to the holders of redeemed public shares their portion of the Withdrawal Amount and retain the remainder of the funds in the trust account for the Company’s use in connection with consummating the business combination on or before the Extended Date.

If the Extension Amendment Proposal is approved and the Extension is implemented, the removal of the Withdrawal Amount from the trust account in connection with the Election will reduce the amount held in the trust account following the Election. The Company cannot predict the amount that will remain in the trust account after such withdrawal if the Extension Amendment Proposal is approved and the amount remaining in the trust account may be only a fraction of the $172,537,850.52 (including interest but less the funds used to pay taxes) that was in the trust account as of the record date. In such event, the Company may still seek to obtain additional funds to complete a business combination, and there can be no assurance that such funds will be available on terms acceptable to the parties or at all.

If the Extension Amendment Proposal is not approved and the Company has not consummated a business combination within the Combination Period, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the funds held in the trust account and not previously released to us to pay our taxes (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding public shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the remaining stockholders and our Board, liquidate and dissolve, subject, in each case, to our obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. There will be no redemption rights or liquidating distributions with respect to our warrants, which will expire worthless if we fail to complete an initial business combination within the Combination Period.

The Adjournment Proposal will only be presented at the special meeting if there are not sufficient votes to approve the Extension Amendment Proposal.

Our initial stockholders, Sponsor, officers and directors have entered into a letter agreement with us, pursuant to which they have agreed to waive their redemption rights with respect to any founder shares and public shares they may hold in connection with a stockholder vote to approve an amendment to the charter.

Why is the Company proposing the Extension Amendment Proposal and Adjournment Proposal?

Our Board believes that there will not be sufficient time to complete a business combination within the Combination Period. Accordingly, the Company has determined to seek stockholder approval to extend the date by which the Company has to complete a business combination. The sole purpose of the Extension Amendment Proposal and, if presented, the Adjournment Proposal is to provide the Company with sufficient time to complete a business combination, which the Board believes is in the best interest of our stockholders. The Company believes that given the Company’s expenditure of time, effort and money on searching for potential business combination opportunities, circumstances warrant providing public stockholders an opportunity to consider an initial business combination. Accordingly, our Board is proposing the Extension Amendment Proposal and, if necessary, the Adjournment Proposal to extend the Company’s corporate existence until the Extended Date.

You are not being asked to vote on any proposed business combination at this time. If the Extension is implemented and you do not elect to redeem your public shares now, provided that you are a stockholder on the record date for a meeting to consider a business combination, you will retain the right to vote on any proposed business combination when and if one is submitted to stockholders and the right to redeem your public shares into a pro rata portion of the trust account in the event a business combination is approved and completed or the Company has not consummated a business combination by the Extended Date.

Why should I vote for the Extension Amendment Proposal?

Our Board believes stockholders will benefit from the Company consummating a business combination and is proposing the Extension Amendment Proposal to extend the date by which the Company must complete a business combination until the Extended Date. The Extension would give the Company the opportunity to complete a business combination, which the Board believes in the best interests of the stockholders.

Our charter provides that if our stockholders approve an amendment to our charter that would affect the substance or timing of the Company’s obligation to redeem 100% of the Company’s public shares if the Company does not complete a business combination within the Combination Period, the Company will provide our public stockholders with the opportunity to redeem all or a portion of their shares of common stock upon such approval at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account as of two business days prior to such approval, including any interest earned on the funds held in the trust account (which interest shall be net of taxes payable), divided by the number of then outstanding public shares. This charter provision was included to protect the Company’s stockholders from having to sustain their investments for an unreasonably long period if the Company failed to find a suitable business combination in the timeframe contemplated by the charter. The Company also believes, however, that given the Company’s expenditure of time, effort and money on pursuing a business combination, circumstances warrant providing those who believe they might find a business combination to be an attractive investment with an opportunity to consider such transaction.

Our Board recommends that you vote in favor of the Extension Amendment Proposal.

Why should I vote for the Adjournment Proposal?

If the Adjournment Proposal is presented and not approved by our stockholders, our Board may not be able to adjourn the special meeting to a later date in the event that there are insufficient votes for, or otherwise in connection with, the approval of the Extension Amendment Proposal.

Our Board recommends that you vote in favor of the Adjournment Proposal

How do the Company insiders intend to vote their shares?

Our initial stockholders, Sponsor, officers and directors are expected to vote any common stock over which they have voting control (including any public shares owned by them) in favor of the Extension Amendment Proposal and, if presented, the Adjournment Proposal.

Our initial stockholders, Sponsor, officers and directors are not entitled to redeem the founder shares or any public shares held by them. On the record date, our initial stockholders, Sponsor, officers and directors beneficially owned, and were entitled to vote, 4,312,500 founder shares, which represents 20% of the Company’s issued and outstanding common stock.

In addition, the Company’s initial stockholders, directors, officers and Sponsor, or any of their respective affiliates, may purchase public shares in privately negotiated transactions or in the open market prior to or following the special meeting, although they are under no obligation to do so. Such public shares purchased by the Company or the Sponsor would be (a) purchased at a price no higher than the redemption price for the public shares, which is currently estimated to be $10.00 per share and (b) would not be (i) voted by our initial stockholders or their respective affiliates at the special meeting and (ii) redeemable by our initial stockholders or their respective affiliates. Any such purchases that are completed after the record date for the special meeting may include an agreement with a selling stockholder that such stockholder, for so long as it remains the record holder of the shares in question, will vote in favor of the Extension Amendment Proposal and/or will not exercise its redemption rights with respect to the shares so purchased. The purpose of such share purchases and other transactions would be to increase the likelihood that the proposals to

be voted upon at the special meeting are approved by the requisite number of votes and to reduce the number of public shares that are redeemed. In the event that such purchases do occur, the purchasers may seek to purchase shares from stockholders who would otherwise have voted against the Extension Amendment Proposal and elected to redeem their shares for a portion of the trust account. Any such privately negotiated purchases may be effected at purchase prices that are below or in excess of the per-share pro rata portion of the trust account. Any public shares held by or subsequently purchased by our affiliates may be voted in favor of the Extension Amendment Proposal. None of our initial stockholders, advisors or their respective affiliates may make any such purchases when they are in possession of any material non-public information not disclosed to the seller or during a restricted period under Regulation M under the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

Does the Board recommend voting for the approval of the Extension Amendment Proposal and, if presented, the Adjournment Proposal?

Yes. After careful consideration of the terms and conditions of the proposals, the Board has determined that the Extension Amendment Proposal and Adjournment Proposal are in the best interests of the Company and its stockholders. The Board unanimously recommends that stockholders vote “FOR” both the Extension Amendment Proposal and, if presented, the Adjournment Proposal.

What vote is required to adopt the Extension Amendment Proposal?

Approval of the Extension Amendment Proposal will require the affirmative vote of holders of 65% of the Company’s outstanding Class A common stock and Class B common stock, voting together as a single class, including those shares held as a constituent part of our units, on the record date.

If the Extension Amendment Proposal is approved, we will provide our public stockholders with the opportunity to redeem all or a portion of their public shares at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account as of two business days prior to such approval, including any interest earned on the funds held in the trust account (which interest shall be net of taxes payable), divided by the number of then outstanding public shares. However, the Company may not redeem our public shares in an amount that would cause our net tangible assets to be less than $5,000,001.

What vote is required to adopt the Adjournment Proposal?

If presented, the Adjournment Proposal requires the affirmative vote of the majority of the votes cast by stockholders represented in person or by proxy at the special meeting.

What happens if I sell my public shares or units before the special meeting?

The May 13, 2022 record date is earlier than the date of the special meeting. If you transfer your public shares, including those shares held as a constituent part of our units, after the record date, but before the special meeting, unless the transferee obtains from you a proxy to vote those shares, you will retain your right to vote at the special meeting. If you transfer your public shares prior to the record date, you will have no right to vote those shares at the special meeting. If you acquired your public shares after the record date, you will still have an opportunity to redeem them if you so decide.

What if I don’t want to vote for the Extension Amendment Proposal and/or the Adjournment Proposal?

If you do not want the Extension Amendment Proposal to be approved, you must abstain, not vote, or vote against the proposal. If the Extension Amendment Proposal is approved, and the Extension is implemented, then the Withdrawal Amount will be withdrawn from the trust account and paid to the redeeming holders.

If you do not want the Adjournment Proposal to be approved, you must vote against the proposal. Abstentions will be counted in connection with the determination of whether a valid quorum is established but will have no effect on the outcome of the Adjournment Proposal.

Will you seek any further extensions to liquidate the trust account?

Other than the extension until the Extended Date as described in this proxy statement, the Company does not currently anticipate seeking any further extension to consummate a business combination, although it may determine to do so in the future.

What happens if the Extension Amendment Proposal is not approved?

If the Extension Amendment Proposal is not approved and the Company has not consummated a business combination within the Combination Period, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the funds held in the trust account and not previously released to us to pay our taxes (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding public shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the remaining stockholders and our Board, liquidate and dissolve, subject, in each case, to our obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. There will be no redemption rights or liquidating distributions with respect to our warrants, which will expire worthless if we fail to complete an initial business combination within the Combination Period.

Our initial stockholders, Sponsor, officers and directors have entered into a letter agreement with us, pursuant to which they have agreed to waive their redemption rights with respect to any founder shares and public shares they may hold in connection with a stockholder vote to approve an amendment to our charter. There will be no distribution from the trust account with respect to our warrants, which will expire worthless in the event we wind up.

If the Extension Amendment Proposal is approved, what happens next?

If the Extension Amendment Proposal is approved, the Company will continue to attempt to consummate a business combination until the Extended Date.

If the Extension Amendment Proposal is approved, the Company will file an amendment to the charter with the Secretary of State of the State of Delaware in the form of Annex A hereto. The Company will remain a reporting company under the Exchange Act, and its units, Class A common stock, and public warrants will remain publicly traded.

If the Extension Amendment Proposal is approved, the removal of the Withdrawal Amount from the trust account will reduce the amount remaining in the trust account and increase the percentage interest of the Company’s common stock held by our initial stockholders through the founder shares.

If I do not redeem my shares now, would I still be able to vote on an initial business combination and exercise my redemption rights with respect to an initial business combination?

Yes. If you do not redeem your shares in connection with the Extension Amendment Proposal, then, assuming you are a stockholder as of the record date for voting on a business combination, you will be able to vote on the business combination when it is submitted to stockholders. You will also retain your right to redeem your public shares upon consummation of a business combination, subject to any limitations set forth in the charter, as amended.

When and where is the special meeting?

The special meeting will be held at 12:00 p.m. Eastern Time, on June 14, 2022, in virtual format. The Company’s stockholders may attend, vote and examine the list of stockholders entitled to vote at the special meeting by visiting https://www.cstproxy.com/duneacq/2022 and entering the control number found on their proxy card, voting instruction form or notice included in their proxy materials. You may also attend the special meeting telephonically by dialing 1-800-450-7155 (toll-free within the United States and Canada) or +1 857-999-9155 (outside of the United States and Canada, standard rates apply). The pin number for telephone access is 9059819#, but please note that you will not be able to vote or ask questions if you choose to participate telephonically. In light of public health concerns regarding the COVID-19 pandemic, the special meeting will be held in virtual meeting format only. You will not be able to attend the special meeting physically.

How do I attend the virtual special meeting, and will I be able to ask questions?

If you are a registered stockholder, you received a proxy card from the Company’s transfer agent, Continental Stock Transfer & Trust Company (“transfer agent”). The form contains instructions on how to attend the virtual annual meeting including the URL address, along with your control number. You will need your control number for access. If you do not have your control number, contact the transfer agent at the phone number or e-mail address below. The transfer agent support contact information is as follows: 917-262-2373, or email proxy@continentalstock.com.

You can pre-register to attend the virtual meeting starting June 7, 2022 at 9:00 a.m. Eastern Time (five business days prior to the special meeting date). Enter the URL address into your browser http://www.cstproxy.com/duneacq/2022, enter your control number, name and email address. Once you pre-register you can vote or enter questions in the chat box. At the start of the special meeting you will need to re-log in using your control number and will also be prompted to enter your control number if you vote during the special meeting.

Beneficial holders, who own their investments through a bank or broker, will need to contact the transfer agent to receive a control number. If you plan to vote at the special meeting you will need to have a legal proxy from your bank or broker or if you would like to join and not vote, the transfer agent will issue you a guest control number with proof of ownership. Either way you must contact the transfer agent for specific instructions on how to receive the control number. We can be contacted at the number or email address above. Please allow up to 72 hours prior to the special meeting for processing your control number.

If you do not have internet capabilities, you can listen only to the special meeting by dialing 1-800-450-7155, within the United States and Canada, or +1 857-999-9155 (standard rates apply) outside the United States and Canada; when prompted enter the pin number 9059819#. This is listen only, you will not be able to vote or enter questions during the special meeting.

How do I vote?

If you are a holder of record of Company common stock, including those shares held as a constituent part of our units, you may vote virtually at the special meeting or by submitting a proxy for the special meeting. Whether or not you plan to attend the special meeting virtually, the Company urges you to vote by proxy to ensure your vote is counted. You may submit your proxy by completing, signing, dating and returning the enclosed proxy card in the accompanying pre-addressed postage paid envelope. You may still attend the special meeting and vote virtually if you have already voted by proxy.

If your shares of Company common stock, including those shares held as a constituent part of our units, are held in “street name” by a broker or other agent, you have the right to direct your broker or other agent on how to vote the shares in your account. You are also invited to attend the special meeting. However, since you are not the stockholder of record, you may not vote your shares virtually at the special meeting unless you request and obtain a valid proxy from your broker or other agent.

How do I change my vote?

If you have submitted a proxy to vote your shares and wish to change your vote, you may do so by delivering a later-dated, signed proxy card prior to the date of the special meeting or by voting virtually at the special meeting. Attendance at the special meeting alone will not change your vote. You also may revoke your proxy by sending a notice of revocation to the Company at 700 S. Rosemary Avenue, Suite 204, West Palm Beach, Florida 33401, Attn: Carter Glatt, Chief Executive Officer and Director.

How are votes counted?

Votes will be counted by the inspector of election appointed for the special meeting, who will separately count “FOR” and “AGAINST” votes, abstentions and broker non-votes for the Extension Amendment Proposal. Because approval of the Extension Amendment Proposal requires the affirmative vote of the stockholders holding at least 65% of the shares of Class A common stock and Class B common stock outstanding on the record date, voting together as a single class, abstentions and broker non-votes will have the same effect as votes against the Extension Amendment Proposal.

Approval of the Adjournment Proposal requires the affirmative vote of the majority of the votes cast by stockholders represented in person or by proxy at the special meeting. Abstentions will be counted in connection with the determination of whether a valid quorum is established but will have no effect on the outcome of the Adjournment Proposal.

If my shares are held in “street name,” will my broker automatically vote them for me?

No. Under the rules governing banks and brokers who submit a proxy card with respect to shares held in street name, such banks and brokers have the discretion to vote on routine matters, but not on non-routine matters. The approval of the Extension Amendment Proposal, however, is a non-routine matter.

Your broker can vote your shares with respect to the proposals only if you provide instructions on how to vote. You should instruct your broker to vote your shares. Your broker can tell you how to provide these instructions. If you do not give your broker instructions, your shares will be treated as broker non-votes with respect to the Extension Amendment Proposal. Broker non-votes will have the same effect as a vote AGAINST the Extension Amendment Proposal. However, since the Adjournment Proposal is considered a routine matter, brokers will be able to vote on the Adjournment Proposal absent stockholder instructions, and thus there should be no broker non-votes with respect to the Adjournment Proposal.

What is a quorum requirement?

A quorum of stockholders is necessary to hold a valid meeting. A quorum will be present if at least a majority of the outstanding shares of common stock on the record date, including those shares held as a constituent part of our units, are represented virtually or by proxy at the special meeting.

Your shares will be counted towards the quorum only if you submit a valid proxy (or one is submitted on your behalf by your broker, bank or other nominee) or if you vote virtually at the special meeting. Abstentions and broker non-votes will be counted towards the quorum requirement. If there is no quorum, the presiding officer of the special meeting may adjourn the special meeting to another date.

Who can vote at the special meeting?

Only holders of record of the Company’s common stock, including those shares held as a constituent part of our units, at the close of business on May 13, 2022 are entitled to have their vote counted at the special meeting and any adjournments or postponements thereof. On this record date, 17,250,000 public shares and 4,312,500 shares of Class B common stock were outstanding and entitled to vote.

Stockholder of Record: Shares Registered in Your Name. If on the record date your shares or units were registered directly in your name with the Company’s transfer agent, Continental Stock Transfer & Trust Company, then you are a stockholder of record. As a stockholder of record, you may vote virtually at the special meeting or vote by proxy. Whether or not you plan to attend the special meeting virtually, the Company urges you to fill out and return the enclosed proxy card to ensure your vote is counted.

Beneficial Owner: Shares Registered in the Name of a Broker or Bank. If on the record date your shares or units were held, not in your name, but rather in an account at a brokerage firm, bank, dealer, or other similar organization, then you are the beneficial owner of shares held in “street name” and these proxy materials are being forwarded to you by that organization. As a beneficial owner, you have the right to direct your broker or other agent on how to vote the shares in your account. You are also invited to attend the special meeting virtually. However, since you are not the stockholder of record, you may not vote your shares virtually at the special meeting unless you request and obtain a valid proxy from your broker or other agent.

What interests do the Company’s directors and executive officers have in the approval of the Extension Amendment Proposal?

The Company’s directors and executive officers have interests in the Extension Amendment Proposal that may be different from, or in addition to, your interests as a stockholder. These interests include ownership by them or their affiliates of founder shares, and warrants that may become exercisable in the future, loans by them that will not be repaid in the event of our winding up and the possibility of future compensatory arrangements. See the section entitled “The Extension Amendment — Interests of the Company’s Directors and Officers.”

What if I object to the Extension Amendment Proposal and/or the Adjournment Proposal? Do I have appraisal rights?

Stockholders do not have appraisal rights in connection with either the Extension Amendment Proposal or, if presented, the Adjournment Proposal under the DGCL.

What happens to the Company’s warrants if the Extension Amendment Proposal is not approved?

If the Extension Amendment Proposal is not approved and the Company has not consummated a business combination within the Combination Period, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the funds held in the trust account and not previously released to us to pay our taxes (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding public shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the remaining stockholders and our Board, liquidate and dissolve, subject, in each case, to our obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. There will be no redemption rights or liquidating distributions with respect to our warrants, which will expire worthless if we fail to complete an initial business combination within the Combination Period.

What happens to the Company warrants if the Extension Amendment Proposal is approved?

If the Extension Amendment Proposal is approved, the Company will continue its efforts to consummate a business combination until the Extended Date and will retain the blank check company restrictions previously applicable to it. The warrants will remain outstanding in accordance with their terms.

How do I redeem my public shares?

If the Extension is implemented, each public stockholder may seek to redeem all or a portion of its public shares at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account as of two business days prior to the approval of the Extension, including any interest earned on the funds held in the trust account (which interest shall be net of taxes payable), divided by the number of then outstanding public shares. You will also be able to redeem your public shares in connection with any stockholder vote to approve a business combination, or if the Company has not consummated a business combination by the Extended Date.

Pursuant to our charter, a public stockholder may request that the Company redeem all or a portion of such public stockholder’s public shares for cash if the Extension Amendment Proposal is approved. You will be entitled to receive cash for any public shares to be redeemed only if you:

(i) (a) hold public shares or (b) hold public shares through units and you elect to separate your units into the underlying public shares and public warrants prior to exercising your redemption rights with respect to the public shares; and

(ii) prior to 5:00 p.m. Eastern Time, on June 10, 2022 (two business days prior to the scheduled vote at the special meeting), (a) submit a written request, including the name, phone number, and address of the beneficial owner of the shares for which redemption is requested, to Continental Stock Transfer & Trust Company, the Company’s transfer agent, at Continental Stock Transfer & Trust Company, 1 State Street, 30th Floor, New York, New York 10004, Attn: Mark Zimkind (e-mail: mzimkind@continentalstock.com), that the Company redeem your public shares for cash and (b) deliver your public shares to the transfer agent, physically or electronically through The Depository Trust Company (“DTC”).

Holders of units must elect to separate the underlying public shares and public warrants prior to exercising redemption rights with respect to the public shares. If holders hold their units in an account at a brokerage firm or bank, holders must notify their broker or bank that they elect to separate the units into the underlying public shares and public warrants, or if a holder holds units registered in its own name, the holder must contact the transfer agent directly and instruct it to do so. Public stockholders may elect to redeem all or a portion of their public shares regardless of whether they vote for or against the Extension Amendment Proposal and regardless of whether they hold public shares on the record date.

If you hold your shares through a bank or broker, you must ensure your bank or broker complies with the requirements identified herein, including submitting a written request that your shares be redeemed for cash to the transfer agent and delivering your shares to the transfer agent prior to 5:00 p.m. Eastern Time on June 10, 2022 (two business days before the special meeting). You will only be entitled to receive cash in connection with a redemption of these shares if you continue to hold them until the effective date of the Extension Amendment and Election.

Through DTC’s DWAC (Deposit/Withdrawal at Custodian) System, this electronic delivery process can be accomplished by the stockholder, whether or not it is a record holder or its shares are held in “street name,” by contacting the transfer agent or its broker and requesting delivery of its shares through the DWAC system. Delivering shares physically may take significantly longer. In order to obtain a physical stock certificate, a stockholder’s broker and/or clearing broker, DTC, and the Company’s transfer agent will need to act together to facilitate this request. There is a nominal cost associated with the above-referenced tendering process and the act of certificating the shares or delivering them through the DWAC system. The transfer agent will typically charge the tendering broker $100 and the broker would determine whether or not to pass this cost on to the redeeming holder. It is the Company’s understanding that stockholders should generally allot at least two weeks to obtain physical certificates from the transfer agent. The Company does not have any control over this process or over the brokers or DTC, and it may take longer than two weeks to obtain a physical stock certificate. Such stockholders will have less time to make their investment decision than those stockholders that deliver their shares through the DWAC system. Stockholders who request physical stock certificates and wish to redeem may be unable to meet the deadline for tendering their shares before exercising their redemption rights and thus will be unable to redeem their shares.

Certificates that have not been tendered in accordance with these procedures prior to the vote on the Extension Amendment Proposal will not be redeemed for cash held in the trust account. In the event that a public stockholder tenders its shares and decides prior to the vote at the special meeting that it does not want to redeem its shares, the stockholder may withdraw the tender. If you delivered your shares for redemption to our transfer agent and decide prior to the vote at the special meeting not to redeem your shares, you may request that our transfer agent return the shares (physically or electronically). You may make such request by contacting our transfer agent at the address listed above. In the event that a public stockholder tenders shares and the Extension Amendment Proposal is not approved, these shares will not be redeemed and the physical certificates representing these shares will be returned to the stockholder promptly following the determination that the Extension Amendment Proposal will not be approved. The Company anticipates that a public stockholder who tenders shares for redemption in connection with the vote to approve the Extension would receive payment of the redemption price for such shares soon after the completion of the Extension Amendment. The transfer agent will hold the certificates of public stockholders that make the election until such shares are redeemed for cash or returned to such stockholders.

If I am a unit holder, can I exercise redemption rights with respect to my units?

No. Holders of outstanding units must separate the underlying public shares and public warrants (as defined below) prior to exercising redemption rights with respect to the public shares.

If you hold units registered in your own name, you must deliver the certificate for such units to Continental Stock Transfer & Trust Company, our transfer agent, with written instructions to separate such units into public shares, and public warrants. This must be completed far enough in advance to permit the mailing of the public share certificates back to you so that you may then exercise your redemption rights upon the separation of the public shares from the units. See “How do I redeem my public shares?” above.

What should I do if I receive more than one set of voting materials?

You may receive more than one set of voting materials, including multiple copies of this proxy statement and multiple proxy cards or voting instruction cards, if your shares are registered in more than one name or are registered in different accounts. For example, if you hold your shares in more than one brokerage account, you will receive a separate voting instruction card for each brokerage account in which you hold shares. Please complete, sign, date and return each proxy card and voting instruction card that you receive in order to cast a vote with respect to all of your shares of common stock.

Who is paying for this proxy solicitation?

The Company will pay for the entire cost of soliciting proxies. The Company has engaged Morrow Sodali LLC (“Morrow Sodali”) to assist in the solicitation of proxies for the special meeting. The Company has agreed to pay Morrow Sodali a fee of $30,000. The Company will also reimburse Morrow Sodali for reasonable and customary out-of-pocket expenses. In addition to these mailed proxy materials, our directors and executive officers may also solicit proxies in person, by telephone or by other means of communication. These parties will not be paid any additional compensation for soliciting proxies. The Company may also reimburse brokerage firms, banks and other agents for the cost of forwarding proxy materials to beneficial owners.

Where do I find the voting results of the special meeting?

We will announce preliminary voting results at the special meeting. The final voting results will be tallied by the inspector of election and published in the Company’s Current Report on Form 8-K, which the Company is required to file with the SEC within four business days following the special meeting.

Who can help answer my questions?

If you have questions about the proposals or if you need additional copies of the proxy statement or the enclosed proxy card you should contact:

Dune Acquisition Corporation
700 S. Rosemary Avenue, Suite 204
West Palm Beach, Florida 33401
Attn: Carter Glatt
Telephone: (917) 742-1904

You may also contact the Company’s proxy solicitor at:

Morrow Sodali LLC
333 Ludlow Street, 5th Floor, South Tower
Stamford, CT 06902
Tel: (800) 662-5200 (toll-free) or
(203) 658-9400 (banks and brokers can call collect)
Email: DUNE.info@investor.morrowsodali.com

You may also obtain additional information about the Company from documents filed with the SEC by following the instructions in the section entitled “Where You Can Find More Information.”

THE SPECIAL MEETING

Date, Time, Place and Purpose of the Special Meeting

The special meeting will be held at 12:00 p.m. Eastern Time, on June 14, 2022. The special meeting will be held virtually, at https://www.cstproxy.com/duneacq/2022. At the special meeting, the stockholders will consider and vote upon the following proposals:

• The Extension Amendment Proposal: To amend our charter to extend the date by which the Company must consummate a business combination from June 22, 2022 (the date which is 18 months from the closing date of the IPO), to December 22, 2023 (the date which is 36 months from the closing date of the IPO).

• The Adjournment Proposal: A proposal to approve the adjournment of the special meeting to a later date or dates, if necessary or appropriate, to permit further solicitation and vote of proxies in the event that there are insufficient votes for, or otherwise in connection with, the approval of the Extension Amendment Proposal.

Voting Power; Record Date

You will be entitled to vote or direct votes to be cast at the special meeting if you owned our common stock, including as a constituent part of a unit, at the close of business on May 13, 2022, the record date for the special meeting. You will have one vote per proposal for each share of common stock you owned at that time. Our warrants do not carry voting rights.

At the close of business on the record date, there were 21,562,500 outstanding shares of common stock, each of which entitles its holder to cast one vote per proposal. The warrants do not carry voting rights.

Votes Required

Approval of the Extension Amendment Proposal will require the affirmative vote of holders of 65% of the Company’s Class A common stock and Class B common stock, voting together as a single class, outstanding on the record date.

Approval of the Adjournment Proposal requires the affirmative vote of the majority of the votes cast by stockholders represented in person or by proxy at the special meeting.

If you do not vote (i.e., you “abstain” from voting), your action will have the same effect as an “AGAINST” vote with regards to the Extension Amendment Proposal. Abstentions will be counted in connection with the determination of whether a valid quorum is established but will have no effect on the outcome of the Adjournment Proposal. Broker non-votes will have the same effect as “AGAINST” votes.

If you do not want the Extension Amendment Proposal to be approved, you must abstain, not vote, or vote against the proposal. The Company anticipates that a public stockholder who tenders shares for redemption in connection with the vote to approve the Extension Amendment Proposal would receive payment of the redemption price for such shares soon after the completion of the Extension Amendment.

If you do not want the Adjournment Proposal to be approved, you must vote against the proposal. Abstentions will be counted in connection with the determination of whether a valid quorum is established but will have no effect on the outcome of the Adjournment Proposal.

Voting

You can vote your shares at the special meeting by proxy or virtually.

You can vote by proxy by having one or more individuals who will be at the special meeting vote your shares for you. These individuals are called “proxies” and using them to cast your ballot at the special meeting is called voting “by proxy.”

If you wish to vote by proxy, you must (i) complete the enclosed form, called a “proxy card,” and mail it in the envelope provided or (ii) submit your proxy by telephone or over the Internet (if those options are available to you) in accordance with the instructions on the enclosed proxy card or voting instruction card.

If you complete the proxy card and mail it in the envelope provided or submit your proxy by telephone or over the Internet as described above, you will designate Carter Glatt and William Nance to act as your proxy at the special meeting. One of them will then vote your shares at the special meeting in accordance with the instructions you have given them in the proxy card or voting instructions, as applicable, with respect to the proposals presented in this proxy statement. Proxies will extend to, and be voted at, any adjournment(s) of the special meeting.

Alternatively, you can vote your shares in person by attending the special meeting. You will be given a ballot at the special meeting.

A special note for those who plan to attend the special meeting and vote virtually: if your shares or units are held in the name of a broker, bank or other nominee, please follow the instructions you receive from your broker, bank or other nominee holding your shares. You will not be able to vote at the special meeting unless you obtain a legal proxy from the record holder of your shares.

Our Board is asking for your proxy. Giving our Board your proxy means you authorize it to vote your shares at the special meeting in the manner you direct. You may vote for or withhold your vote for the nominee or any proposal or you may abstain from voting. All valid proxies received prior to the special meeting will be voted. All shares represented by a proxy will be voted, and where a stockholder specifies by means of the proxy a choice with respect to any matter to be acted upon, the shares will be voted in accordance with the specification so made. If no choice is indicated on the proxy, the shares will be voted “FOR” the Extension Amendment Proposal, and as the proxy holders may determine in their discretion with respect to any other matters that may properly come before the special meeting.

Stockholders who have questions or need assistance in completing or submitting their proxy cards should contact our proxy solicitor, Morrow Sodali, at (203) 658-9400 (call collect), (800) 662-5200 (call toll-free), or by sending an email to DUNE.info@investor.morrowsodali.com.

Stockholders who hold their shares in “street name,” meaning the name of a broker or other nominee who is the record holder, must either direct the record holder of their shares to vote their shares or obtain a legal proxy from the record holder to vote their shares at the special meeting.

Revocability of Proxies

Any proxy may be revoked by the person giving it at any time before the polls close at the special meeting. A proxy may be revoked by filing with Carter Glatt, Chief Executive Officer and Director, at Dune Acquisition Corporation, 700 S. Rosemary Avenue, Suite 204, West Palm Beach, Florida 33401, either a written notice of revocation bearing a date later than the date of such proxy or a subsequent proxy relating to the same shares or by attending the special meeting and voting virtually.

Simply attending the special meeting will not constitute a revocation of your proxy. If your shares are held in the name of a broker or other nominee who is the record holder, you must follow the instructions of your broker or other nominee to revoke a previously given proxy.

Attendance at the Special Meeting

Only holders of common stock, their proxy holders and guests the Company may invite may attend the special meeting. If you wish to attend the special meeting virtually but you hold your shares or units through someone else, such as a broker, please follow the instructions you receive from your broker, bank or other nominee holding your shares. You must bring a legal proxy from the broker, bank or other nominee holding your shares, confirming your beneficial ownership of the shares and giving you the right to vote your shares.

Solicitation of Proxies

Your proxy is being solicited by our Board on the proposals being presented to the stockholders at the special meeting. The Company has agreed to pay Morrow Sodali a fee of $30,000. The Company will also reimburse Morrow Sodali for reasonable and customary out-of-pocket expenses. In addition to these mailed proxy materials, our directors and

executive officers may also solicit proxies in person, by telephone or by other means of communication. These parties will not be paid any additional compensation for soliciting proxies. The Company may also reimburse brokerage firms, banks and other agents for the cost of forwarding proxy materials to beneficial owners. You may contact Morrow Sodali at:

Morrow Sodali LLC
333 Ludlow Street, 5th Floor, South Tower
Stamford, CT 06902
Tel: (800) 662-5200 (toll-free) or
(203) 658-9400 (banks and brokers can call collect)
Email: DUNE.info@investor.morrowsodali.com

The cost of preparing, assembling, printing and mailing this proxy statement and the accompanying form of proxy, and the cost of soliciting proxies relating to the special meeting, will be borne by the Company.

Some banks and brokers have customers who beneficially own common stock listed of record in the names of nominees. The Company intends to request banks and brokers to solicit such customers and will reimburse them for their reasonable out-of-pocket expenses for such solicitations. If any additional solicitation of the holders of our outstanding common stock is deemed necessary, the Company (through our directors and executive officers) anticipates making such solicitation directly.

No Right of Appraisal

The Company’s stockholders do not have appraisal rights under the DGCL in connection with the proposals to be voted on at the special meeting. Accordingly, our stockholders have no right to dissent and obtain payment for their shares.

Other Business

The Company is not currently aware of any business to be acted upon at the special meeting other than the matters discussed in this proxy statement. The form of proxy accompanying this proxy statement confers discretionary authority upon the named proxy holders with respect to amendments or variations to the matters identified in the accompanying Notice of Special Meeting and with respect to any other matters which may properly come before the special meeting. If other matters do properly come before the special meeting, or at any adjournment(s) of the special meeting, the Company expects that the shares of common stock represented by properly submitted proxies will be voted by the proxy holders in accordance with the recommendations of our Board.

Principal Executive Offices

Our principal executive offices are located at 700 S. Rosemary Avenue, Suite 204, West Palm Beach, Florida 33401. Our telephone number at such address is (917) 742-1904.

THE EXTENSION AMENDMENT PROPOSAL

Background

We are a blank check company whose business purpose is to effect a merger, capital stock exchange, asset acquisition, stock purchase reorganization or similar business combination with one or more businesses. We were incorporated in Delaware on June 18, 2020. In connection with our formation, we issued an aggregate of 3,737,500 founder shares to our Sponsor for an aggregate purchase price of $25,000. On December 17, 2020, pursuant to our amended and restated certificate of incorporation, each founder share outstanding immediately prior to December 17, 2020 was converted into one and two-thirteenths (12/13) shares of Class B common stock, resulting in our Sponsor holding 4,312,500 founder shares.

On December 22, 2020, we consummated its IPO of 17,250,000 units, including the issuance of 2,250,000 units as a result of the exercise of the underwriters’ over-allotment option in full at $10.00 per unit, generating gross proceeds of $172,500,000. Simultaneously with the closing of the IPO, the Company consummated the sale of an aggregate of 4,850,000 private placement warrants at a price of $1.00 per warrant in a private placement to our Sponsor, generating gross proceeds to the Company of $4,850,000. Following the closing of the IPO, a total of $172,500,000, comprised of $169,050,000 of the proceeds from the IPO (which amount includes $6,037,500 of the underwriters’ deferred discount) and $3,450,000 of the proceeds of the sale of the private placement warrants, was placed in the trust account.

As previously announced, the Company has entered into the Merger Agreement and filed the Deal Proxy Statement, both of which provide for the Company’s initial business combination with TradeZero. On April 1, 2022, the Dune Plaintiffs filed a four-count complaint in the Delaware Court of Chancery against TradeZero and Messrs. Pipitone, Ferrara, Muscatella, Choi, Koslow, Caruso and Corriveau, each of whom are part of TradeZero’s management team. The Dune Plaintiffs bring claims for breach of contract, fraudulent inducement, fraudulent misrepresentation and unjust enrichment. On April 18, 2022, the Company issued a press release announcing the Dune Plaintiffs’ ongoing litigation against the TradeZero Defendants. On May 3, 2022, after careful consideration and consultation with the Company’s management and outside legal advisors, the Board, who had previously unanimously endorsed and approved of the business combination with TradeZero, announced that it had changed its recommendation to the Company’s stockholders and now unanimously recommends that the Company’s stockholders vote against the business combination with TradeZero. The Company intends to more fully describe the reasons for the Board’s change in recommendation in the next filing of the Deal Proxy Statement. On May 5, 2022, the TradeZero Defendants filed a motion to dismiss the Dune Plaintiff’s lawsuit.

The Extension Amendment

The Company is proposing to amend its charter to extend the date by which the Company must consummate a business combination to the Extended Date.

The sole purpose of the Extension Amendment Proposal is to provide the Company with sufficient time to complete a business combination. Approval of the Extension Amendment Proposal is a condition to the implementation of the Extension.

If the Extension Amendment Proposal is not approved and the Company has not consummated a business combination within the Combination Period, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the funds held in the trust account and not previously released to us to pay our taxes (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding public shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the remaining stockholders and our Board, liquidate and dissolve, subject, in each case, to our obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. There will be no redemption rights or liquidating distributions with respect to our warrants, which will expire worthless if we fail to complete an initial business combination within the Combination Period.

A copy of the proposed amendment to the charter is attached to this proxy statement as Annex A.

Reasons for the Proposal

The Company’s IPO prospectus and charter provide that the Company has until the Combination Period to complete a business combination. The sole purpose of the Extension Amendment Proposal is to provide the Company with sufficient time to complete a business combination, which the Board believes is in the best interest of our stockholders. The Company believes that given the Company’s expenditure of time, effort and money on searching for potential business combination opportunities, circumstances warrant providing public stockholders an opportunity to consider an initial business combination. Accordingly, since the Company will not be able to complete an initial business combination within the Combination Period, the Company has determined to seek stockholder approval to extend the time for closing a business combination beyond the Combination Period to the Extended Date. The Company and its officers and directors agreed that they would not seek to amend the charter to allow for a longer period of time to complete a business combination unless the Company provided holders of public shares with the right to seek conversion of their public shares in connection therewith.

If the Extension Amendment Proposal is Not Approved

Stockholder approval of the Extension Amendment Proposal is required for the implementation of our Board’s plan to extend the date by which we must consummate an initial business combination. Therefore, our Board will abandon and not implement the Extension Amendment unless our stockholders approve the Extension Amendment Proposal.

If the Extension Amendment Proposal is not approved and the Company does not consummate a business combination within the Combination Period, as contemplated by our IPO prospectus and in accordance with our charter, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the funds held in the trust account and not previously released to us to pay our taxes (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding public shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the remaining stockholders and our Board, liquidate and dissolve, subject, in each case, to our obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. There will be no redemption rights or liquidating distributions with respect to our warrants, which will expire worthless if we fail to complete an initial business combination within the Combination Period.

The holders of the founder shares have waived their rights to participate in any liquidation distribution with respect to such shares. There will be no distribution from the trust account with respect to the Company’s warrants, which will expire worthless in the event the Extension Amendment Proposal is not approved. The Company will pay the costs of liquidation from its remaining assets outside of the trust account. If such funds are insufficient, the Sponsor has agreed to advance it the funds necessary to complete such liquidation and has agreed not to seek repayment of such expenses.

If the Extension Amendment Proposal is Approved

If the Extension Amendment Proposal is approved, the Company will file an amendment to the charter with the Secretary of State of the State of Delaware in the form of Annex A hereto to extend the time it must complete a business combination until the Extended Date. The Company will remain a reporting company under the Exchange Act, and its units, common stock and public warrants will remain publicly traded. The Company will then continue to work to consummate a business combination by the Extended Date.

You are not being asked to vote on a business combination at this time. If the Extension is implemented and you do not elect to redeem your public shares in connection with the Extension, provided that you are a stockholder on the record date for a meeting to consider a business combination, you will retain the right to vote on a business combination when it is submitted to stockholders and the right to redeem your public shares for cash from the trust account in the event a business combination is approved and completed or the Company has not consummated a business combination by the Extended Date.

If the Extension Amendment Proposal is approved and the Extension is implemented, the removal of the Withdrawal Amount from the trust account in connection with the Election will reduce the amount held in the trust account following the Election. The Company cannot predict the amount that will remain in the trust account after such

withdrawal if the Extension Amendment Proposal is approved and the amount remaining in the trust account may be only a fraction of the $172,537,850.52 (including interest but less the funds used to pay taxes) that was in the trust account as of the record date. In such event, the Company may still seek to obtain additional funds to complete a business combination, and there can be no assurance that such funds will be available on terms acceptable to the parties or at all. We will not proceed with the Extension if redemptions or repurchases of our public shares cause us to have less than $5,000,001 of net tangible assets following approval of the Extension Amendment Proposal.

Redemption Rights

If the Extension Amendment Proposal is approved, and the Extension is implemented, public stockholders may elect to redeem their shares for a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account as of two business days prior to such approval, including any interest earned on the funds held in the trust account (which interest shall be net of taxes payable), divided by the number of then outstanding public shares. However, the Company may not redeem our public shares in an amount that would cause our net tangible assets to be less than $5,000,001. If the Extension Amendment Proposal is approved by the requisite vote of stockholders, the remaining holders of public shares will retain the opportunity to have their public shares redeemed in conjunction with the consummation of a business combination, subject to any limitations set forth in our charter, as amended. In addition, public stockholders who vote for the Extension Amendment Proposal and do not make the Election would be entitled to have their shares redeemed for cash if the Company has not completed a business combination by the Extended Date.

TO EXERCISE YOUR REDEMPTION RIGHTS, YOU MUST ENSURE YOUR BANK OR BROKER COMPLIES WITH THE REQUIREMENTS IDENTIFIED HEREIN, INCLUDING SUBMITTING A WRITTEN REQUEST THAT YOUR SHARES BE REDEEMED FOR CASH TO THE TRANSFER AGENT AND DELIVERING YOUR SHARES TO THE TRANSFER AGENT PRIOR TO 5:00 P.M. EASTERN TIME ON JUNE 10, 2022 (TWO BUSINESS DAYS PRIOR TO THE SPECIAL MEETING). YOU WILL ONLY BE ENTITLED TO RECEIVE CASH IN CONNECTION WITH A REDEMPTION OF THESE SHARES IF YOU CONTINUE TO HOLD THEM UNTIL THE EFFECTIVE DATE OF THE EXTENSION AMENDMENT AND ELECTION.

Pursuant to our charter, a public stockholder may request that the Company redeem all or a portion of such public stockholder’s public shares for cash if the Extension Amendment Proposal is approved. You will be entitled to receive cash for any public shares to be redeemed only if you:

(i) (a) hold public shares or (b) hold public shares through units and you elect to separate your units into the underlying public shares and public warrants prior to exercising your redemption rights with respect to the public shares; and

(ii) prior to 5:00 p.m. Eastern Time, on June 10, 2022 (two business days prior to the scheduled vote at the special meeting), (a) submit a written request, including the name, phone number, and address of the beneficial owner of the shares for which redemption is requested, to Continental Stock Transfer & Trust Company, the Company’s transfer agent, at Continental Stock Transfer & Trust Company, 1 State Street, 30th Floor, New York, New York 10004, Attn: Mark Zimkind (e-mail: mzimkind@continentalstock.com), that the Company redeem your public shares for cash and (b) deliver your public shares to the transfer agent, physically or electronically through DTC.

Holders of units must elect to separate the underlying public shares and public warrants prior to exercising redemption rights with respect to the public shares. If holders hold their units in an account at a brokerage firm or bank, holders must notify their broker or bank that they elect to separate the units into the underlying public shares and public warrants, or if a holder holds units registered in its own name, the holder must contact the transfer agent directly and instruct it to do so. Public stockholders may elect to redeem all or a portion of their public shares, even if they vote for the Extension Amendment Proposal or are not public stockholders on the record date.

Through DTC’s DWAC (Deposit/Withdrawal at Custodian) System, this electronic delivery process can be accomplished by the stockholder, whether or not it is a record holder or its shares are held in “street name,” by contacting the transfer agent or its broker and requesting delivery of its shares through the DWAC system. Delivering shares physically may take significantly longer. In order to obtain a physical stock certificate, a stockholder’s broker and/or clearing broker, DTC, and the Company’s transfer agent will need to act together to facilitate this request. There is a nominal cost

associated with the above-referenced tendering process and the act of certificating the shares or delivering them through the DWAC system. The transfer agent will typically charge the tendering broker $100 and the broker would determine whether or not to pass this cost on to the redeeming holder. It is the Company’s understanding that stockholders should generally allot at least two weeks to obtain physical certificates from the transfer agent. The Company does not have any control over this process or over the brokers or DTC, and it may take longer than two weeks to obtain a physical stock certificate. Such stockholders will have less time to make their investment decision than those stockholders that deliver their shares through the DWAC system. Stockholders who request physical stock certificates and wish to redeem may be unable to meet the deadline for tendering their shares before exercising their redemption rights and thus will be unable to redeem their shares. Certificates that have not been tendered in accordance with these procedures prior to the vote on the Extension Amendment Proposal will not be redeemed for cash held in the trust account. In the event that a public stockholder tenders its shares and decides prior to the vote at the special meeting that it does not want to redeem its shares, the stockholder may withdraw the tender. If you delivered your shares for redemption to our transfer agent and decide prior to the vote at the special meeting not to redeem your shares, you may request that our transfer agent return the shares (physically or electronically). You may make such request by contacting our transfer agent at the address listed above. In the event that a public stockholder tenders shares and the Extension Amendment Proposal is not approved, these shares will not be redeemed and the physical certificates representing these shares will be returned to the stockholder promptly following the determination that the Extension Amendment Proposal will not be approved. The Company anticipates that a public stockholder who tenders shares for redemption in connection with the vote to approve the Extension would receive payment of the redemption price for such shares soon after the completion of the Extension Amendment Proposal. The transfer agent will hold the certificates of public stockholders that make the election until such shares are redeemed for cash or returned to such stockholders.

If properly demanded, the Company will redeem each public share for a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the funds held in the trust account and not previously released to us to pay our franchise and income taxes, divided by the number of then outstanding public shares. Based on the amount in the trust account as of the record date, this would amount to approximately $10.00 per share. The closing price of the common stock on Nasdaq on May 13, 2022, the record date, was $9.96. Accordingly, if the market price were to remain the same until the date of the special meeting, exercising redemption rights would result in a public stockholder receiving approximately $0.04 more than if such stockholder sold the public shares in the open market. The Company cannot assure public stockholders that they will be able to sell their public shares in the open market, even if the market price per share is higher than the redemption price stated above, as there may not be sufficient liquidity in its securities when such stockholders wish to sell their shares.

If you exercise your redemption rights, you will be exchanging your shares of the Company’s common stock for cash and will no longer own the shares. You will be entitled to receive cash for these shares only if you properly demand redemption and tender your stock certificate(s) to the Company’s transfer agent prior to 5:00 p.m. Eastern Time on June 10, 2022 (two business days before the special meeting). The Company anticipates that a public stockholder who tenders shares for redemption in connection with the vote to approve the Extension Amendment Proposal would receive payment of the redemption price for such shares soon after the completion of the Extension Amendment.

Interests of the Company’s Directors and Executive Officers

When you consider the recommendation of our Board, you should keep in mind that the Company’s executive officers and directors, and their affiliates, have interests that may be different from, or in addition to, your interests as a stockholder. These interests include, among other things:

• If the Extension Amendment Proposal is not approved and the Company does not consummate a business combination within the Combination Period, in accordance with our charter, the 4,312,500 founder shares, which were acquired by the Sponsor directly from the Company for an aggregate investment of $25,000, or approximately $0.003 per share, will be worthless (as the initial stockholders, Sponsor, officers and directors have waived liquidation rights with respect to such shares). The founder shares had an aggregate market value of approximately $42,952,500 based on the last sale price of $9.96 on Nasdaq on May 13, 2022 (the record date);

• If the Extension Amendment Proposal is not approved and the Company does not consummate a business combination within the Combination Period, in accordance with our charter, the 4,850,000 private placement warrants purchased by our Sponsor for an aggregate investment of $4,850,000, or $1.00 per warrant, will be worthless, as they will expire. The private placement warrants had an aggregate market value of $145,000 based on the last sale price of $0.03 on the Nasdaq on May 13, 2022 (the record date);

• In total, our Sponsor paid an aggregate of $4,875,000 to purchase the securities mentioned above with an aggregate market value of approximately $43,098,000 based upon closing prices on Nasdaq on May 13, 2022 (the record date) (without taking into account any diminution in value resulting from the transfer restrictions on such securities).

• Even if the trading price of the Class A common stock were as low as $1.13 per share, the aggregate market value of the founder shares alone (without taking into account the value of the private placement warrants) would be approximately equal to the initial investment in the Company by the Sponsor. As a result, if a business combination is completed, the initial stockholders are likely to be able to make a substantial profit on their investment in us even at a time when the Class A common stock has lost significant value. On the other hand, if the Extension Amendment Proposal is not approved and the Company liquidates without completing its initial business combination within the Combination Period, the initial stockholders will lose their entire investment in us.

• Our Sponsor and our officers and directors have agreed to waive their redemption rights with respect to their founder shares and any public shares they hold in connection with the Extension Amendment Proposal and, if presented, the Adjournment Proposal. In addition, our Sponsor and our officers and directors have agreed to waive their rights to liquidating distributions from the trust account with respect to their founder shares if we fail to complete a business combination within the Combination Period. There will be no redemption rights or liquidating distributions with respect to the private placement warrants or public warrants, which will expire worthless if we fail to complete an initial business combination within the Combination Period.

• In order to protect the amounts held in the trust account, our Sponsor has agreed that it will be liable to us if and to the extent any claims by a vendor for services rendered or products sold to us, or a prospective target business with which we have entered into a transaction agreement, reduce the amount of funds in the trust account. This liability will not apply with respect to any claims by a third party who executed a waiver of any right, title, interest or claim of any kind in or to any monies held in the trust account or to any claims under our indemnity of the underwriters of our IPO against certain liabilities, including liabilities under the Securities Act of 1933, as amended;

• All rights specified in the charter relating to the right of officers and directors to be indemnified by the Company, and of the Company’s executive officers and directors to be exculpated from monetary liability with respect to prior acts or omissions, will continue after a business combination. If a business combination is not approved and the Company liquidates, the Company will not be able to perform its obligations to its officers and directors under those provisions;

• All of the current members of our Board are expected to continue to serve as directors at least through the date of the special meeting to approve a business combination and some are expected to continue to serve following a business combination as discussed above and receive compensation thereafter; and

• The Company’s executive officers and directors, and their affiliates are entitled to reimbursement of out- However, if the Company fails to obtain the Extension and consummate a business combination, they will not have any claim against the trust account for reimbursement. Accordingly, the Company will most likely not be able to reimburse these expenses if a business combination is not completed.

Additionally, if the Extension Amendment Proposal is approved and we consummate a business combination with TradeZero or another company, our Sponsor, officers and directors may have additional interests, as described in the Deal Proxy Statement.

U.S. Federal Income Tax Considerations

The following discussion is a summary of certain U.S. federal income tax considerations for U.S. Holders and Non-U.S. Holders (each as defined below, and together, “Holders”) of public shares (i) of the Extension Amendment Proposal and (ii) that elect to have their public shares redeemed for cash if the Extension Amendment Proposal is approved. This section applies only to Holders that hold their public shares as “capital assets” for U.S. federal income tax purposes (generally, property held for investment). For purposes of this discussion, because the components of a unit are generally separable at the option of the holder, the holder of a unit generally should be treated, for U.S. federal

income tax purposes, as the owner of the underlying public share and public warrant components of the unit, and the discussion below with respect to actual Holders of public shares also should apply to holders of units (as the deemed owners of the underlying public shares and public warrants that constitute the units). Accordingly, the separation of units into the public shares and public warrants underlying the units generally should not be a taxable event for U.S. federal income tax purposes. This position is not free from doubt, and no assurance can be given that the U.S. Internal Revenue Service (“IRS”) would not assert, or that a court would not sustain, a contrary position. Holders of units are urged to consult their tax advisors concerning the U.S. federal, state, local and non-U.S. tax consequences of the transactions contemplated by the Extension Amendment (including any redemption of the public shares in connection therewith) with respect to any public shares held through the units (including alternative characterizations of the units).

This discussion does not address the U.S. federal income tax consequences to the Sponsor or its affiliates, officers or directors, or to any person of holding founder shares or private placement warrants. This discussion is limited to U.S. federal income tax considerations and does not address any estate or gift tax considerations or considerations arising under the tax laws of any U.S. state, local or non-U.S. jurisdiction. This discussion does not describe all of the U.S. federal income tax consequences that may be relevant to you in light of your particular circumstances, including the alternative minimum tax, the Medicare tax on certain investment income and the different consequences that may apply if you are subject to special rules that apply to certain types of investors, such as:

• banks, financial institutions or financial services entities;

• broker-dealers;

• insurance companies;

• taxpayers subject to a mark-to-market method of accounting with respect to the public shares;

• persons holding the public shares as part of a “straddle,” hedge, integrated transaction or similar transaction;

• U.S. holders (as defined below) whose functional currency is not the U.S. dollar;

• “specified foreign corporations” (including “controlled foreign corporations”), “passive foreign investment companies” and corporations that accumulate earnings to avoid U.S. federal income tax;

• U.S. expatriates or former long-term residents of the United States;

• governments or agencies or instrumentalities thereof;

• regulated investment companies (RICs) or real estate investment trusts (REITs);

• persons that directly, indirectly or constructively own 5% or more (by vote or value) of any class of the Company’s shares (except as specifically provided below);

• persons who received their public shares pursuant to an exercise of employee share options, in connection with employee share incentive plans or otherwise as compensation;

• partnerships (including entities or arrangements treated as partnerships for U.S. federal income tax purposes) or pass-through entities (including S Corporations), or persons that will hold the public shares through such a partnership or pass-through entity; and

• tax-exempt entities.

If a partnership (including an entity or arrangement treated as a partnership for U.S. federal income tax purposes) holds public shares, the U.S. federal income tax treatment of the partners in such partnership will generally depend on the status of the partners, the activities of the partnership and certain determinations made at the partner level. Partnerships and their partners should consult their tax advisors with respect to the tax consequences to them of the Extension Amendment Proposal and the exercise of their redemption rights with respect to their public shares in connection therewith.

This discussion is based on the Internal Revenue Code of 1986, as amended (the “Code”) and administrative pronouncements, judicial decisions and final, temporary and proposed Treasury regulations in effect as of the date hereof. All of the foregoing are subject to change, possibly on a retroactive basis, including as a result of legislation proposed as of the date hereof, and changes to any of which subsequent to the date of this proxy statement may affect the tax consequences described herein.

We have not sought, and do not expect to seek, a ruling from the IRS as to any U.S. federal income tax consequence described herein or a formal opinion of tax advisors with respect to the statements made and the conclusions reached in the following discussion. Statements contained herein that the Company “believes,” “expects” or “intends” or other similar phrases are not legal conclusions or opinions of Winston & Strawn LLP. There can be no assurance that the IRS, a court, our tax advisors or your tax advisor will agree with the statements and conclusions herein, and any contrary determination by the IRS may be upheld by a court. Moreover, there can be no assurance that future legislation, regulations, administrative rulings or court decisions will not adversely affect the accuracy of the statements in this discussion.

THIS DISCUSSION IS ONLY A SUMMARY OF CERTAIN U.S. FEDERAL INCOME TAX CONSIDERATIONS ASSOCIATED WITH THE EXTENSION AMENDMENT PROPOSAL AND THE EXERCISE OF REDEMPTION RIGHTS IN CONNECTION THEREWITH. EACH HOLDER SHOULD CONSULT ITS OWN TAX ADVISOR WITH RESPECT TO THE PARTICULAR TAX CONSEQUENCES TO SUCH HOLDER OF THE EXTENSION AMENDMENT PROPOSAL AND THE EXERCISE OF REDEMPTION RIGHTS, INCLUDING THE APPLICABILITY AND EFFECTS OF U.S. FEDERAL NON-INCOME, STATE AND LOCAL AND NON-U.S. TAX LAWS.

Tax Treatment of Non-Redeeming Stockholders

A public stockholder who does not elect to redeem their public shares (including any public stockholder who votes in favor of the Extension Amendment) will continue to own its public shares, and will not recognize any income, gain or loss for U.S. federal income tax purposes solely as a result of the Extension Amendment Proposal.

Tax Treatment of Redeeming Stockholders

Generally

The U.S. federal income tax consequences to a U.S. Holder of public shares that exercises its redemption rights with respect to its public shares to receive cash in exchange for all or a portion of its public shares will depend on whether the redemption qualifies as a sale of public shares under Section 302 of the Code. If the redemption qualifies as a sale of public shares, a U.S. Holder (as defined below) will be treated as described below under the section entitled “— U.S. Holders — Taxation of Redemption Treated as a Sale of Public Shares,” and a Non-U.S. Holder (as defined below) will be treated as described under the section entitled “— Non-U.S. Holders — Taxation of Redemption Treated as a Sale of Public Shares.” If the redemption does not qualify as a sale of public shares, a Holder will be treated as receiving a corporate distribution with the tax consequences to a U.S. Holder described below under the section entitled “— U.S. Holders — Taxation of Redemption Treated as a Distribution,” and the tax consequences to a Non-U.S. Holder described below under the section entitled “— Non-U.S. Holders — Taxation of Redemption Treated as a Distribution.”

Whether a redemption of public shares qualifies for sale treatment will depend largely on the total number of shares of the Company’s stock treated as held by the redeemed Holder before and after the redemption (including any stock of the Company treated as constructively owned by the Holder as a result of owning public warrants) relative to all of the stock of the Company outstanding both before and after the redemption. The redemption of public shares generally will be treated as a sale of public shares (rather than as a corporate distribution) if the redemption (1) is “substantially disproportionate” with respect to the Holder, (2) results in a “complete termination” of the Holder’s interest in the Company or (3) is “not essentially equivalent to a dividend” with respect to the Holder. These tests are explained more fully below.

In determining whether any of the foregoing tests result in a redemption qualifying for sale treatment, a Holder takes into account not only shares of the Company’s stock actually owned by the Holder, but also shares of the Company’s stock that are constructively owned by it under certain attribution rules set forth in the Code. A Holder may constructively own, in addition to stock owned directly, stock owned by certain related individuals and entities in which the Holder has an interest or that have an interest in such Holder, as well as any stock that the holder has a right to acquire by exercise of an option, which would generally include public shares which could be acquired pursuant to the exercise of public warrants.

In order to meet the substantially disproportionate test, the percentage of the Company’s outstanding voting stock actually and constructively owned by the Holder immediately following the redemption of public shares must, among other requirements, be less than eighty percent (80%) of the percentage of the Company’s outstanding voting stock actually and constructively owned by the Holder immediately before the redemption (taking into account redemptions by other holders of public shares). There will be a complete termination of a Holder’s interest if either (1) all of the public shares actually and constructively owned by the Holder are redeemed or (2) all of the public shares actually owned by the Holder are redeemed and the Holder is eligible to waive, and effectively waives in accordance with specific rules, the attribution of stock owned by certain family members and the Holder does not constructively own any other public shares (including any stock constructively owned by the Holder as a result of owning public warrants). The redemption of public shares will not be essentially equivalent to a dividend if the redemption results in a “meaningful reduction” of the Holder’s proportionate interest in the Company. Whether the redemption will result in a meaningful reduction in a Holder’s proportionate interest in the Company will depend on the particular facts and circumstances. However, the IRS has indicated in a published ruling that even a small reduction in the proportionate interest of a small minority stockholder in a publicly held corporation where such stockholder exercises no control over corporate affairs may constitute such a “meaningful reduction.”

If none of the foregoing tests is satisfied, then the redemption of public shares will be treated as a corporate distribution to the redeemed Holder and the tax effects to a redeemed U.S. Holder will be as described below under the section entitled “— U.S. Holders — Taxation of Redemption Treated as a Distribution,” and the tax effects to a redeemed Non-U.S. Holder will be as described below under the section entitled “— Non-U.S. Holders — Taxation of Redemption Treated as a Distribution.” After the application of those rules, any remaining tax basis of the U.S. Holder in the redeemed public shares will be added to the U.S. Holder’s adjusted tax basis in its remaining shares of the Company’s stock or, if it has none, to the U.S. Holder’s adjusted tax basis in its public warrants or possibly in other shares of the Company’s stock constructively owned by it.

Each Holder should consult with and rely solely upon its own tax advisors as to the tax consequences of a redemption.

U.S. Holders

This section applies to you if you are a “U.S. Holder.” A U.S. Holder is a beneficial owner of public shares who or that is, for U.S. federal income tax purposes:

• an individual who is a citizen or resident of the United States;

• a corporation (or other entity taxable as a corporation) that is created or organized (or treated as created or organized) in or under the laws of the United States, any state thereof or the District of Columbia;

• an estate the income of which is subject to U.S. federal income taxation regardless of its source; or

• a trust if (i) a court within the United States is able to exercise primary supervision over the administration of such trust, and one or more “United States persons” (within the meaning of Section 7701(a)(30) of the Code) have the authority to control all substantial decisions of such trust or (ii) it has a valid election in effect under Treasury regulations to be treated as a United States person.

Taxation of Redemption Treated as a Distribution

If the redemption of a U.S. Holder’s public shares is treated as a corporate distribution, as discussed above under the section entitled “— Tax Treatment of Redeeming Stockholders — Generally,” the amount of cash received in the redemption generally will constitute a dividend for U.S. federal income tax purposes to the extent paid from the Company’s current or accumulated earnings and profits, as determined under U.S. federal income tax principles.

Distributions in excess of the Company’s current and accumulated earnings and profits will constitute a return of capital that will be applied against and reduce (but not below zero) the U.S. Holder’s adjusted tax basis in its public shares. Any remaining excess will be treated as gain realized on the sale of public shares and will be treated as described below under the section entitled “— U.S. Holders — Taxation of Redemption Treated as a Sale of Public Shares.”

Any portion of a distribution that is treated as a dividend paid to a U.S. Holder that is a taxable corporation generally will qualify for the dividends received deduction if the requisite holding period is satisfied, but may be subject to the “extraordinary dividend” provisions of the Code (which could cause a reduction in the tax basis of such corporate U.S.

Holder’s basis in its public shares and thus increase the amount of gain or decrease the amount of loss recognized by such U.S. Holder in connection with a disposition of its public shares). With certain exceptions (including, but not limited to, dividends treated as investment income for purposes of investment interest deduction limitations), and provided certain holding period requirements are met, dividends we pay to a non-corporate U.S. Holder generally will constitute “qualified dividend income” that will be subject to tax at the maximum tax rate accorded to long-term capital gains. It is unclear whether the redemption rights with respect to the public shares described in this proxy statement (including the redemption rights available, regardless of whether the Extension is approved, if we are unable to complete our initial business combination within the Combination Period) may prevent a U.S. Holder from satisfying the applicable holding period requirements with respect to the dividends received deduction or the preferential tax rate on qualified dividend income, as the case may be. If the applicable holding period requirements are not satisfied, a corporate U.S. Holder may not be able to qualify for the dividends received deduction and would have taxable income equal to the entire dividend amount, and a non-corporate U.S. Holder may be subject to tax on the dividend at regular ordinary income tax rates instead of the preferential income tax rate that applies to qualified dividend income.

Taxation of Redemption Treated as a Sale of Public Shares

If the redemption of a U.S. Holder’s public shares is treated as a sale, as discussed above under the section entitled “— Tax Treatment of Redeeming Stockholders — Generally,” a U.S. Holder generally will recognize capital gain or loss in an amount equal to the difference between the amount of cash received in the redemption and the U.S. Holder’s adjusted tax basis in the public shares redeemed. A U.S. Holder’s adjusted tax basis in its public shares generally will equal the U.S. Holder’s acquisition cost less any prior distributions paid to such U.S. Holder with respect to its public shares treated as a return of capital. Any such capital gain or loss generally will be long-term capital gain or loss if the U.S. Holder’s holding period for the public shares so disposed of exceeds one year. It is unclear, however, whether the redemption rights with respect to the public shares described in this proxy statement (including the redemption rights available, regardless of whether the Extension is approved, if we are unable to complete our initial business combination within the Combination Period) may suspend the running of the applicable holding period for this purpose. If the running of the holding period for the public shares is suspended, U.S. Holders may not be able to satisfy the one-year holding period requirement for long-term capital gain treatment. If the one-year holding period requirement is not satisfied, any gain would be subject to short-term capital gain treatment and would be taxed at regular ordinary income tax rates. Long-term capital gains recognized by non-corporate U.S. Holders generally will be eligible to be taxed at reduced rates. The deductibility of capital losses is subject to limitations.

U.S. Holders who hold different blocks of public shares (including as a result of holding different blocks of public shares purchased or acquired on different dates or at different prices) should consult with and rely solely upon their tax advisors to determine how the above rules apply to them.

U.S. Holders who actually or constructively own at least five percent (5%) by vote or value (or, if the public shares are not then considered to be publicly traded, at least one percent (1%) by vote or value) or more of the total outstanding Company stock may be subject to special reporting requirements with respect to a redemption of public shares, and such holders should consult with their tax advisors with respect to their reporting requirements.

ALL U.S. HOLDERS ARE URGED TO CONSULT THEIR TAX ADVISORS AS TO THE TAX CONSEQUENCES TO THEM OF A REDEMPTION OF ALL OR A PORTION OF THEIR PUBLIC SHARES PURSUANT TO AN EXERCISE OF REDEMPTION RIGHTS.

Non-U.S. Holders

This section applies to you if you are a “Non-U.S. Holder.” A Non-U.S. Holder is a beneficial owner of public shares who or that is, for U.S. federal income tax purposes:

• a non-resident alien individual, other than certain former citizens and residents of the United States subject to U.S. tax as expatriates;

• a foreign corporation; or

• an estate or a trust that is not a U.S. Holder.

Taxation of Redemption Treated as a Distribution

If our redemption of a Non-U.S. Holder’s public shares is treated as a corporate distribution, as discussed above under the section entitled “— Tax Treatment of Redeeming Stockholders — Generally,” the amount of cash received in the redemption generally will constitute a dividend for U.S. federal income tax purposes to the extent paid out of our current or accumulated earnings and profits (as determined under U.S. federal income tax principles) and, provided such dividend is not effectively connected with the Non-U.S. Holder’s conduct of a trade or business within the United States, we will be required to withhold tax from the gross amount of such dividend at a rate of thirty percent (30%), unless such Non-U.S. Holder is eligible for a reduced rate of withholding tax under an applicable income tax treaty and timely provides proper certification of its eligibility for such reduced rate (usually on an IRS Form W-8BEN or W-8BEN-E). Any portion of a distribution not constituting a dividend will be treated first as reducing (but not below zero) the Non-U.S. Holder’s adjusted tax basis in its public shares redeemed and, to the extent such distribution exceeds the Non-U.S. Holder’s adjusted tax basis, as gain realized on the sale of the public shares, which will be treated as described below under the section entitled “— Non-U.S. Holders — Taxation of Redemption Treated as a Sale of Public Shares.” In addition, if the Company determines that it is likely to be classified as a “United States real property holding corporation” (see “— Non-U.S. Holders — Taxation of Redemption as a Sale of Public Shares” below), the applicable withholding agent may withhold fifteen percent (15%) of any distribution that exceeds the Company’s current and accumulated earnings and profits.

Because it may not be certain at the time a Non-U.S. Holder is redeemed whether such Non-U.S. Holder’s redemption will be treated as a sale of shares or a distribution constituting a dividend, and because such determination will depend in part on a Non-U.S. Holder’s particular circumstances, the applicable withholding agent may not be able to determine whether (or to what extent) a Non-U.S. Holder is treated as receiving a dividend for U.S. federal income tax purposes. Therefore, subject to the withholding requirements under FATCA (as defined below) and other than with respect to effectively connected dividends, each of which is discussed below, the applicable withholding agent may withhold tax at a rate of thirty percent (30%) (or such lower rate as may be specified by an applicable income tax treaty) on the gross amount of any consideration paid to a Non-U.S. Holder in redemption of such Non-U.S. Holder’s public shares, unless (a) the applicable withholding agent has established special procedures allowing Non-U.S. Holders to certify that they are exempt from such withholding tax and (b) such Non-U.S. Holders are able to certify that they meet the requirements of such exemption (e.g., because such Non-U.S. Holders are not treated as receiving a dividend under the Section 302 tests described above under the section entitled “— Tax Treatment of Redeeming Stockholders — Generally”). However, there can be no assurance that any applicable withholding agent will establish such special certification procedures. If an applicable withholding agent withholds excess amounts from the amount payable to a Non-U.S. Holder, such Non-U.S. Holder generally may obtain a refund of any such excess amounts by timely filing an appropriate claim for refund with the IRS. Non-U.S. Holders should consult with and rely solely upon their own tax advisors regarding the application of the foregoing rules in light of their particular facts and circumstances and any applicable procedures or certification requirements.

The withholding tax described above does not apply to dividends paid to a Non-U.S. Holder who provides an IRS Form W-8ECI certifying that the dividends are effectively connected with such Non-U.S. Holder’s conduct of a trade or business within the United States (and, if required by an applicable income tax treaty, that are treated as attributable to a permanent establishment maintained by the Non-U.S. Holder in the United States). Instead, the effectively connected dividends will be subject to regular U.S. federal income tax as if the Non-U.S. Holder were a U.S. resident, subject to an applicable income tax treaty providing otherwise. Such effectively connected dividends will not be subject to U.S. withholding tax if the Non-U.S. Holder satisfies certain certification requirements by providing the applicable withholding agent with a properly executed IRS Form W-8ECI certifying eligibility for exemption. A corporate Non-U.S. Holder that is receiving effectively connected dividends may also be subject to an additional “branch profits tax” imposed at a rate of thirty percent (30%) (or a lower applicable income tax treaty rate).

Taxation of Redemption Treated as a Sale of Public Shares

If our redemption of a Non-U.S. Holder’s public shares is treated as a sale of public shares, as discussed above under the section entitled “— Tax Treatment of Redeeming Stockholders — Generally,” subject to the discussion of backup withholding below, a Non-U.S. Holder generally will not be subject to U.S. federal income or withholding tax in respect of gain recognized in connection with the redemption of public shares that is treated as a sale as described above, unless:

(i) the gain is effectively connected with the conduct of a trade or business by the Non-U.S. Holder within the United States (and, under certain income tax treaties, is attributable to a United States permanent establishment or fixed base maintained by the Non-U.S. Holder);

(ii) such Non-U.S. Holder is an individual who is present in the United States for 183 days or more during the taxable year in which the disposition takes place (as such days are calculated pursuant to Section 7701(b)(3) of the Code) and certain other conditions are met; or

(iii) the Company is or has been a “United States real property holding corporation” (as defined below) for U.S. federal income tax purposes at any time during the shorter of the five-year period ending on the date of disposition or the Non-U.S. Holder’s holding period for the applicable security being disposed of, except, in the case where public shares are “regularly traded” on an “established securities market” (as such terms are defined under applicable Treasury Regulations), the Non-U.S. Holder is disposing of public shares and has owned, whether actually or based on the application of constructive ownership rules, five percent (5%) or less of public shares at all times within the shorter of the five-year period preceding such disposition of public shares or such Non-U.S. Holder’s holding period for such public shares. There can be no assurance that public shares are or have been treated as regularly traded on an established securities market for this purpose. It is unclear how the rules for determining the five percent (5%) threshold for this purpose would be applied with respect to public shares, including how a Non-U.S. Holder’s ownership of public warrants impacts the five percent (5%) threshold determination with respect to public shares. Non-U.S. Holders should consult their own tax advisors regarding the application of the foregoing rules in light of their particular facts and circumstances.

Unless an applicable treaty provides otherwise, gain described in the first bullet point above will be subject to tax at generally applicable U.S. federal income tax rates as if the Non-U.S. Holder were a U.S. resident. Any gains described in the first bullet point above of a Non-U.S. Holder that is treated as a foreign corporation for U.S. federal income tax purposes may also be subject to an additional “branch profits tax” imposed at a thirty percent (30%) rate (or a lower applicable income tax treaty rate).

If the second bullet point applies to a Non-U.S. Holder, such Non-U.S. Holder generally will be subject to U.S. tax on such Non-U.S. Holder’s capital gain for such year (including any gain realized in connection with the redemption) at a tax rate of thirty percent (30%) (or a lower applicable income tax treaty rate), which gain generally may be offset by U.S. source capital losses.

If the third bullet point above applies to a Non-U.S. Holder, gain recognized by such holder in connection with the Redemption will be subject to tax at generally applicable U.S. federal income tax rates. In addition, the Company may be required to withhold U.S. federal income tax at a rate of fifteen percent (15%) of the amount realized upon such redemption if the public shares were not considered to be regularly traded on an established securities market. The Company will be classified as a “United States real property holding corporation” if the fair market value of its “United States real property interests” equals or exceeds fifty percent (50%) of the sum of the fair market value of its worldwide real property interests plus other assets used or held for use in a trade or business, as determined for U.S. federal income tax purposes. It is not expected that the Company would be a United States real property holding corporation in the immediate foreseeable future. However, such determination is factual in nature and subject to change and no assurance can be provided as to whether the Company would be treated as a United States real property holding corporation in any year.

Non-U.S. Holders should consult their tax advisors regarding the U.S. federal income tax consequences to them in respect of any loss recognized on a redemption of public shares that is treated as a sale for U.S. federal income tax purposes.

Information Reporting and Backup Withholding

Payments of cash as a result of our redemption of public shares may be subject to information reporting to the IRS and possible U.S. backup withholding. Backup withholding will not apply, however, to a U.S. Holder who furnishes a correct taxpayer identification number and makes other required certifications, or who is otherwise exempt from backup withholding and establishes such exempt status.

A Non-U.S. Holder generally will eliminate the requirement for information reporting and backup withholding by providing certification of its non-U.S. status, under penalties of perjury, on a duly executed applicable IRS Form W-8 or by otherwise establishing an exemption. However, information returns are required to be filed with the IRS in connection with any payments of dividends on public shares paid to a Non-U.S. Holder, regardless of whether any tax was actually withheld.

Backup withholding is not an additional tax. Amounts withheld as backup withholding may be credited against a holder’s U.S. federal income tax liability, and a holder generally may obtain a refund of any excess amounts withheld under the backup withholding rules by timely filing the appropriate claim for refund with the IRS and furnishing any required information.

Foreign Account Tax Compliance Act

Provisions of the Code, Treasury regulations and related guidance commonly referred to as “FATCA” impose a withholding tax of 30% on payments of dividends (including amounts treated as dividends received pursuant to a redemption of stock) on public shares. Such 30% withholding tax under FATCA was scheduled to apply to the gross proceeds of a disposition of any stock, debt instrument, or other property that can produce U.S. source dividends or interest beginning on January 1, 2019, but on December 13, 2018, the IRS released proposed regulations that, if finalized in their proposed form, would eliminate the obligation to withhold on gross proceeds. Although these proposed Treasury regulations are not final, taxpayers generally may rely on them until final Treasury regulations are issued.

In general, no such withholding will be required with respect to a U.S. Holder or an individual Non-U.S. Holder that timely provides the certifications required on a valid IRS Form W-9 or W-8, respectively. Holders potentially subject to withholding include “foreign financial institutions” (which is broadly defined for this purpose and in general includes investment vehicles) and certain other non-U.S. entities unless various U.S. information reporting and due diligence requirements (generally relating to ownership by U.S. persons of interests in or accounts with those entities) have been satisfied, or an exemption applies (typically certified as to by the delivery of a properly completed IRS Form W-8BEN-E). If FATCA withholding is imposed, a beneficial owner that is not a foreign financial institution generally will be entitled to a refund of any amounts withheld by filing a U.S. federal income tax return (which may entail significant administrative burden). Foreign financial institutions located in jurisdictions that have an intergovernmental agreement with the United States governing FATCA may be subject to different rules.

Non-U.S. Holders should consult with and rely solely upon their tax advisors regarding the effects of FATCA on a redemption of public shares.

As previously noted above, the foregoing discussion of certain material U.S. federal income tax consequences is included for general information purposes only and is not intended to be, and should not be construed as, legal or tax advice to any stockholder. The Company once again urges you to consult with your own tax adviser to determine the particular tax consequences to you (including the application and effect of any U.S. federal, state, local or foreign income or other tax laws) of the receipt of cash in exchange for shares in connection with the Extension Amendment Proposal.

Required Vote

The affirmative vote by holders of 65% of the Company’s outstanding Class A common stock and Class B common stock, voting together as a single class, is required to approve the Extension Amendment Proposal. If the Extension Amendment Proposal is not approved, the Extension Amendment Proposal will not be implemented and the Company will be required by its charter to (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the

THE ADJOURNMENT PROPOSAL

Overview

The Adjournment Proposal, if adopted, will allow our Board to adjourn the special meeting to a later date or dates, if necessary or appropriate, to permit further solicitation of proxies in the event that there are insufficient votes for, or otherwise in connection with, the Extension Amendment Proposal. The Adjournment Proposal will only be presented to our stockholders in the event that there are insufficient votes for, or otherwise in connection with, the approval of the Extension Amendment Proposal.

Consequences if the Adjournment Proposal is Not Approved

If the Adjournment Proposal is not approved by our stockholders, our Board may not be able to adjourn the special meeting to a later date in the event that there are insufficient votes for, or otherwise in connection with, the approval of the Extension Amendment Proposal.

Required Vote

The approval of the Adjournment Proposal requires the affirmative vote of a majority of the votes cast by the Company’s stockholders represented in person or by proxy. Accordingly, if a valid quorum is otherwise established, a stockholder’s failure to vote by proxy or online at the special meeting will have no effect on the outcome of any vote on the Adjournment Proposal. Abstentions will be counted in connection with the determination of whether a valid quorum is established but will have no effect on the outcome of the Adjournment Proposal.

Recommendation

As discussed above, after careful consideration of all relevant factors, our Board has determined that the Adjournment Proposal is in the best interests of the Company and its stockholders. Our Board has approved and declared advisable the adoption of the Adjournment Proposal.

Our Board recommends that you vote “FOR” the Adjournment Proposal.

The existence of financial and personal interests of our directors and officers may result in a conflict of interest on the part of one or more of the directors or officers between what he, she or they may believe is in the best interests of the Company and its stockholders and what he, she or they may believe is best for himself, herself or themselves in determining to recommend that stockholders vote for the proposals. See the section entitled “The Extension Amendment — Interests of the Company’s Directors and Officers” for a further discussion.

PRINCIPAL STOCKHOLDERS

The following table sets forth information regarding the beneficial ownership of our common stock as of May 13, 2022 by:

• each person known by us to be the beneficial owner of more than 5% of our outstanding shares of common stock;

• each of our executive officers and directors; and

• all our executive officers and directors as a group.

Unless otherwise indicated, we believe that all persons named in the table have sole voting and investment power with respect to all shares of common stock beneficially owned by them. The following table does not reflect record or beneficial ownership of the public warrants or private placement warrants as these warrants are not exercisable within 60 days of the date of this proxy statement.

The beneficial ownership of our common stock is based on 21,562,500 shares of common stock issued and outstanding as of May 13, 2022, consisting of 17,250,000 shares of Class A common stock and 4,312,500 founder shares.

NAME AND ADDRESS OF BENEFICIAL OWNER(1)	NUMBER OF SHARES CLASS A COMMON STOCK BENEFICIALLY OWNED	%		NUMBER OF SHARES OF CLASSS B COMMON STOCK BENEFICIALLY OWNED	%
Directors and Executive Officers
Carter Glatt(2)	—	—		4,312,500	100	%
Michael Castaldy(2)	—	—		—	—
William Nance(2)	—	—		—	—
Igor Fuks(2)	—	—		—	—
Jeron Smith(2)	—	—		—	—
All Directors and Executives of the Company as a Group (five individuals)	—	—		4,312,500	100	%
Holders of more than 5% of the Company’s outstanding shares of Common Stock
Dune Acquisition Holdings LLC(2)	—	—		4,312,500	100	%
Saba Capital Management, L.P.(3)	1,380,826	8.0	%	—	—
Aristeria Capital, L.L.C.(4)	1,000,000	5.8	%	—	—
Hudson Bay Capital Management LP(5)	882,015	5.1	%	—	—

____________

* Denotes less than 1%

(1) Unless otherwise noted, the business address of each of these stockholders is c/o Dune Acquisition Corporation, 700 S. Rosemary Avenue, Suite 204, West Palm Beach, FL 33401.

(2) Dune Acquisition Holdings LLC is the record holder of the shares reported herein. Each of our officers and directors are among the members of Dune Acquisition Holdings LLC and Mr. Glatt is the manager of Dune Acquisition Holdings LLC. Mr. Glatt has voting and investment discretion with respect to the common stock held of record by Dune Acquisition Holdings LLC. Each of our officers and directors other than Mr. Glatt disclaims any beneficial ownership of any shares held by Dune Acquisition Holdings LLC.

(3) According to a Schedule 13G filed with the SEC on February 14, 2022, Saba Capital Management, L.P., Saba Capital Management GP, LLC and Boaz R. Weinstein may be deemed to beneficially own 1,380,826 shares of the Company’s Class A Common Stock. The address of each reporting person is 405 Lexington Avenue, 58th Floor, New York, New York 10174.

(4) According to a Schedule 13G filed with the SEC on February 14, 2022, Aristeria Capital, L.L.C. beneficially owns 1,100,000 shares of the Company’s Class A Common Stock. The address of Aristeria Capital, L.L.C. is One Greenwich Plaza, 3rd Floor, Greenwich, CT 06830.

(5) According to Schedule 13G filed with the SEC on February 2, 2022 on behalf of Hudson Bay Capital Management LP (“Hudson Bay Capital”) and Sander Gerber. Hudson Bay Capital and Mr. Gerber may be deemed to beneficially own 882,015 shares of the Company’s Class A Common Stock. The business address of each reporting person is 18 Havemeyer Place, 2nd Floor, Greenwich, Connecticut 06830.

DELIVERY OF DOCUMENTS TO STOCKHOLDERS

Pursuant to the rules of the SEC, the Company and its agents that deliver communications to its stockholders are permitted to deliver to two or more stockholders sharing the same address a single copy of the Company’s proxy statement. Upon written or oral request, the Company will deliver a separate copy of the proxy statement to any stockholder at a shared address who wishes to receive separate copies of such documents in the future. Stockholders receiving multiple copies of such documents may likewise request that the Company deliver single copies of such documents in the future. Stockholders may notify the Company of their requests by calling or writing the Company at the Company’s principal executive offices at 700 S. Rosemary Avenue, Suite 204, West Palm Beach, Florida 33401, (917) 742-1904, Attn: Carter Glatt, Chief Executive Officer and Director.

WHERE YOU CAN FIND MORE INFORMATION

The Company files annual, quarterly and current reports, proxy statements and other information with the SEC. The SEC maintains an internet web site that contains reports, proxy and information statements, and other information regarding issuers, including us, that file electronically with the SEC. The public can obtain any documents that we file electronically with the SEC at http://www.sec.gov.

You may obtain additional copies of this proxy statement, at no cost, and you may ask any questions you may have about the Extension Amendment Proposal or the Adjournment Proposal by contacting us at the following address or telephone number:

Dune Acquisition Corporation
700 S. Rosemary Avenue, Suite 204
West Palm Beach, Florida 33401
Attn: Carter Glatt
Telephone: (917) 742-1904

You may also obtain these documents at no cost by requesting them in writing or by telephone from the Company’s proxy solicitation agent at the following address and telephone number:

Morrow Sodali LLC
333 Ludlow Street, 5th Floor, South Tower
Stamford, CT 06902
Tel: (800) 662-5200 (toll-free) or
(203) 658-9400 (banks and brokers can call collect)
Email: DUNE.info@investor.morrowsodali.com

In order to receive timely delivery of the documents in advance of the special meeting, you must make your request for information no later than June 7, 2022 (one week prior to the date of the special meeting).

ANNEX A

PROPOSED CERTIFICATE OF AMENDMENT TO THE
AMENDED AND RESTATED
CERTIFICATE OF INCORPORATION
OF
DUNE ACQUISITION CORPORATION

Dune Acquisition Corporation, a corporation organized and existing under the by virtue of the General Corporation Law of the State of Delaware (the “DGCL”), does hereby certify:

1. The name of the corporation is Dune Acquisition Corporation. The corporation was originally incorporated pursuant to the DGCL on June 18, 2020, under the name of Dune Acquisition Corporation.

2. The date of filing of the corporation’s original Certificate of Incorporation with the Secretary of State of the State of Delaware was June 18, 2020, and the date of filing the corporation’s Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware was December 17, 2020.

3. The Board of Directors of the corporation has duly adopted resolutions setting forth proposed amendments to the Certificate of Incorporation of the corporation (as amended and restated prior to the date hereof), declaring said amendment to be advisable and in the best interests of the corporation and its stockholders and authorizing the appropriate officers of the corporation to solicit the consent of the stockholders therefor, which resolutions setting forth the proposed amendment are substantially as follows:

RESOLVED, that Section 9.1(b) of Article IX of the Amended and Restated Certificate of Incorporation of the corporation is amended and restated to read in its entirety as follows:

“Immediately after the Offering, a certain amount of the net offering proceeds received by the Corporation in the Offering (including the proceeds of any exercise of the underwriters’ over-allotment option) and certain other amounts specified in the Corporation’s registration statement on Form S-1, initially filed with the U.S. Securities and Exchange Commission (the “SEC”) on September 10, 2020, as amended (the “Registration Statement”), shall be deposited in a trust account (the “Trust Account”), established for the benefit of the Public Stockholders (as defined below) pursuant to a trust agreement described in the Registration Statement. Except for the withdrawal of interest to pay taxes, none of the funds held in the Trust Account (including the interest earned on the funds held in the Trust Account) will be released from the Trust Account until the earliest to occur of (i) the completion of the initial Business Combination, (ii) the redemption of 100% of the Offering Shares (as defined below) if the Corporation is unable to complete its initial Business Combination within 36 months from the closing of the Offering and (iii) the redemption of shares in connection with a vote seeking to amend such provisions of this Amended and Restated Certificate as described in Section 9.7. Holders of shares of Common Stock included as part of the units sold in the Offering (the “Offering Shares”) (whether such Offering Shares were purchased in the Offering or in the secondary market following the Offering and whether or not such holders are the Sponsor or officers or directors of the Corporation, or affiliates of any of the foregoing) are referred to herein as “Public Stockholders.”

4. That thereafter, said amendment was duly adopted in accordance with the provisions of Section 242 of the DGCL by written consent of stockholders holding the requisite number of shares required by statute given in accordance with and pursuant to Section 228 of the DGCL.

In Witness Whereof, the corporation has caused this Certificate of Amendment to be signed this ____ day of [•], 2022.


		Carter Glatt
		Chief Executive Officer and Director