SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

Concord Acquisition Corp II

(Name of Issuer)

Class A common stock, par value $0.0001 per share

(Title of Class of Securities)

20607U108

(CUSIP Number)

03/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No.

20607U108

Names of Reporting Persons

PERISCOPE CAPITAL INC.

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

CANADA (FEDERAL LEVEL)

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power
6	Shared Voting Power 0.00
7	Sole Dispositive Power
8	Shared Dispositive Power 0.00

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

0.0 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

Concord Acquisition Corp II

(b)

Address of issuer's principal executive offices:

477 MADISON AVENUE, NEW YORK, NEW YORK, 10022.

Item 2.

(a)

Name of person filing:

This Schedule 13G is being filed on behalf of Periscope Capital Inc. (Periscope) with respect to the shares of Class A common stock, par value $0.0001 per share (the Common Stock), of Concord Acquisition Corp II, a Delaware corporation (the Issuer). Periscope, which is the beneficial owner of 0 shares of Common Stock, acts as investment manager of, and exercises investment discretion with respect to, certain private investment funds (each, a Periscope Fund) that collectively directly own 0 shares of Common Stock. The filing of this statement should not be construed as an admission that Periscope is, for the purpose of Section 13 of the Act, the beneficial owner of the Common Stock owned by the Periscope Funds.

(b)

Address or principal business office or, if none, residence:

333 Bay Street, Suite 1240, Toronto, Ontario, Canada M5H 2R2

(c)

Citizenship:

See Row 4 of the Cover Page.

(d)

Title of class of securities:

Class A common stock, par value $0.0001 per share

(e)

CUSIP No.:

20607U108

Item 3.

If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

(b)

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

(c)

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

(d)

Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

(e)

An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f)

An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g)

A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h)

A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j)

A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:

(k)

Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

Non-U.S. investment adviser.

Item 4.

Ownership

(a)

Amount beneficially owned:

(b)

Percent of class:

0 %

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

(ii) Shared power to vote or to direct the vote:

(iii) Sole power to dispose or to direct the disposition of:

(iv) Shared power to dispose or to direct the disposition of:

Item 5.

Ownership of 5 Percent or Less of a Class.

Ownership of 5 percent or less of a class

Item 6.

Ownership of more than 5 Percent on Behalf of Another Person.

Not Applicable

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not Applicable

Item 8.

Identification and Classification of Members of the Group.

Not Applicable

Item 9.

Notice of Dissolution of Group.

Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

PERISCOPE CAPITAL INC.

Signature:	Lisa Shostack
Name/Title:	Lisa Shostack, General Counsel
Date:	05/09/2025

Comments accompanying signature: The original statement shall be signed by each person on whose behalf the statement is filed or his authorized representative. If the statement is signed on behalf of a person by his authorized representative (other than an executive officer or general partner of this filing person), evidence of the representative's authority to sign on behalf of such person shall be filed with the statement, provided, however, that a power of attorney for this purpose which is already on file with the Commission may be incorporated by reference. The name and any title of each person who signs the statement shall be typed or printed beneath his signature. Attention: Intentional misstatements or omissions of fact constitute Federal criminal violations (See 18 U.S.C. 1001).

Amendment: SEC Form SCHEDULE 13G/A filed by Concord Acquisition Corp II