ipwr20260616

S-8 1 ipwr20260616_s8.htm FORM S-8 ipwr20260616_s8.htm

As filed with the Securities and Exchange Commission on June 18, 2026

Registration No. 333-

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-8

REGISTRATION STATEMENT UNDER THE

SECURITIES ACT OF 1933

IDEAL POWER INC.
(Exact name of registrant as specified in its charter)

Delaware

14-1999058

(State or other jurisdiction of

incorporation or organization)

(I.R.S. Employer

Identification No.)

5508 Highway 290 West, Suite 120

Austin, Texas, 78735
(Address of principal executive offices, including zip code)

Ideal Power Inc. Amended and Restated 2013 Equity Incentive Plan

(Full title of the plan)

Timothy W. Burns

Chief Financial Officer

Ideal Power Inc.

5508 Highway 290 West, Suite 120

Austin, Texas, 78735

(512) 264-1542

(Name, address and telephone number, including area code, of agent for service)

Copy to:

Ned A. Prusse

Perkins Coie LLP

1900 Sixteenth Street, Suite 1400

Denver, Colorado 80202-5255

(303) 291-2300

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☒	Smaller reporting company	☒
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

EXPLANATORY NOTE

Ideal Power Inc. (the “Registrant” or the “Company”) is filing this Registration Statement on Form S-8 (the “Registration Statement”) with the Securities and Exchange Commission (the “SEC”) under the Securities Act of 1933, as amended (the “Securities Act”), to register an aggregate of 800,000 shares (the “Shares”) of the Company’s common stock, par value $0.001 per share, which are authorized to be issued pursuant to the Ideal Power Inc. Amended and Restated 2013 Equity Incentive Plan, as amended and restated effective June 3, 2026 (the “Plan”).

PART I

INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS

The documents containing the information specified in Part I of the Instructions to the Registration Statement on Form S-8 will be sent or given to the participants in the Plan covered by this Registration Statement, as applicable and as required by Rule 428(b)(1) promulgated under the Securities Act. Such documents need not be filed with the SEC either as part of this Registration Statement or as prospectuses or prospectus supplements pursuant to Rule 424. These documents and the documents incorporated by reference in this Registration Statement pursuant to Item 3 of Part II of this Registration Statement, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the Securities Act.

PART II

INFORMATION REQUIRED IN REGISTRATION STATEMENT

Item 3.

Incorporation of Documents by Reference.

The following documents filed with the SEC are hereby incorporated by reference in this Registration Statement:

(a)

the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the SEC on March 27, 2026;

(b)

the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2026, filed with the SEC on May 15, 2026;

(c)

the Registrant’s Current Reports on Form 8-K filed with the SEC on February 25, 2026, May 18, 2026, June 4, 2026; and

(d)

the description of the Registrant’s common stock contained in the Registrant’s Registration Statement on Form 8-A filed with the SEC on November 21, 2013 under Section 12(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), including any amendments or reports filed for the purpose of updating such description (including Exhibit 4.5 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025 filed with the SEC on March 27, 2026).

All documents filed by the Registrant pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date hereof, and prior to the filing of a post-effective amendment that indicates that all the securities offered hereby have been sold or that deregisters the securities offered hereby then remaining unsold, shall also be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date of filing of such documents; provided, however, that documents or information deemed to have been furnished and not filed in accordance with the rules of the SEC shall not be deemed incorporated by reference in this Registration Statement.

Any statement contained in this Registration Statement or in a document incorporated or deemed to be incorporated by reference in this Registration Statement will be deemed to be modified or superseded to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference in this Registration Statement modifies or supersedes that statement. Any statement so modified or superseded will not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.

Item 4.

Description of Securities.

Not applicable.

Item 5.

Interests of Named Experts and Counsel.

None.

Item 6.

Indemnification of Directors and Officers.

Section 145 of the Delaware General Corporation Law (the “DGCL”) provides, in general, that a corporation may indemnify directors, officers, employees and agents against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with any threatened, pending or completed actions, suits or proceedings (whether civil, criminal, administrative or investigative) in which such person is made a party by reason of such person being or having been a director, officer, employee or agent of the corporation, or serving or having served at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, if such person acted in good faith and in a manner they reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any criminal action or proceeding, had no reasonable cause to believe their conduct was unlawful.

In the case of a derivative action, a Delaware corporation may indemnify any such person against expenses (including attorneys’ fees) actually and reasonably incurred by such person in connection with the defense or settlement of such action or suit if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to the best interests of the corporation, except that no indemnification will be made in respect of any claim, issue or matter as to which such person will have been adjudged to be liable to the corporation unless and only to the extent that the Court of Chancery of the State of Delaware or any other court in which such action was brought determines such person is fairly and reasonably entitled to indemnity for such expenses.

To the extent that a present or former director or officer of a Delaware corporation has been successful on the merits or otherwise in defense of any action, suit or proceeding referred to above, or in defense of any claim, issue or matter therein, Section 145 of the DGCL provides that indemnification of such person against expenses (including attorneys’ fees) actually and reasonably incurred by such person in connection therewith is mandatory. The DGCL further provides that Section 145 is not exclusive of other rights to which those seeking indemnification may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors or otherwise.

Article 14 of the Registrant’s certificate of incorporation, as amended, provides that the Registrant will indemnify, to the fullest extent authorized by the DGCL, each person who was or is made a party or is threatened to be made a party to or is involved in any action, suit or proceeding, whether civil, criminal, administrative or investigative, by reason of the fact that he or she, or a person of whom he or she is the legal representative, is or was a director or officer of the Registrant or is or, while a director, officer, employee or agent of the Registrant, was serving at the request of the Registrant as a director, officer, employee or agent of another corporation or of a partnership, joint venture, trust or other enterprise, including service with respect to employee benefit plans, whether the basis of such proceeding is alleged action in an official capacity as a director, officer, employee or agent or in any other capacity, against all expense, liability and loss (including attorneys’ fees, judgments, fines, ERISA excise taxes or penalties and amounts paid or to be paid in settlement) reasonably incurred or suffered by such indemnitee in connection therewith.

The Registrant’s certificate of incorporation, as amended, provides that no director is liable to the Registrant or its stockholders for monetary damages for breach of fiduciary duty as a director to the fullest extent permitted by the DGCL, except for liability (i) for any breach of the director’s duty of loyalty to the Registrant or its stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) under Section 174 of the DGCL, or (iv) for any transaction from which the director derived an improper personal benefit. If the DGCL is amended after the date hereof to authorize corporate action further eliminating or limiting the personal liability of directors, then the liability of a director of the Corporation shall be eliminated or limited to the fullest extent permitted by the DGCL, as so amended.

The Registrant has also obtained insurance covering its directors and officers for liability arising out of their respective actions.

Item 7.

Exemption from Registration Claimed.

Not applicable.

Item 8.

Exhibits.

Exhibit No.		Description

5.1		Opinion of Perkins Coie LLP
23.1		Consent of BPM LLP, Independent Registered Public Accounting Firm
23.2		Consent of Perkins Coie LLP (included in Exhibit 5.1)
24.1		Power of Attorney (see signature page)
99.1		Ideal Power Inc. Amended and Restated 2013 Equity Incentive Plan, as amended and restated effective June 3, 2026 (incorporated by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K filed on June 4, 2026).
107		Filing Fee Table

Item 9.

Undertakings.

A. The undersigned Registrant hereby undertakes:

(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:

(a) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933, as amended (the “Securities Act”);

(b) To reflect in the prospectus any facts or events arising after the effective date of this Registration Statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in this Registration Statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set forth in the “Calculation of Filing Fee Tables” or “Calculation of Registration Fee” table, as applicable, in the effective Registration Statement; and

(c) To include any material information with respect to the plan of distribution not previously disclosed in this Registration Statement or any material change to such information in this Registration Statement;

provided, however, that paragraphs (1)(a) and (1)(b) above do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in this Registration Statement.

(2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new Registration Statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

B. The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the Registrant’s annual report pursuant to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in this Registration Statement shall be deemed to be a new Registration Statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

C. Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that, in the opinion of the SEC, such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Austin, State of Texas, on June 18, 2026.

	IDEAL POWER INC.
	By:	/s/ Timothy W. Burns
	Name:	Timothy W. Burns
	Title:	Chief Financial Officer

POWER OF ATTORNEY

Each person whose individual signature appears below hereby authorizes David Somo and Timothy W. Burns, as attorneys-in-fact, with full power of substitution, to execute in the name and on the behalf of each person, individually and in each capacity stated below, and to file, any and all amendments to this Registration Statement, including any and all post-effective amendments.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.

Signature	Title	Date

/s/ David Somo	President, Chief Executive Officer and Director	June 18, 2026
David Somo	(Principal Executive Officer)

/s/ Timothy W. Burns	Chief Financial Officer, Secretary and Treasurer	June 18, 2026
Timothy W. Burns	(Principal Financial and Accounting Officer)

/s/ Drue Freeman	Director	June 18, 2026
Drue Freeman

/s/ Gregory Knight	Director	June 18, 2026
Gregory Knight

/s/ Ted Lesster	Director	June 18, 2026
Ted Lesster

/s/ Michael Turmelle	Chairman of the Board	June 18, 2026
Michael Turmelle

SEC Form S-8 filed by Ideal Power Inc.