Millennium reports 7.3% stake in Catalyst Acquisition

Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander report beneficial ownership of Catalyst Acquisition Corp. Class A Ordinary Shares.

Rhea-AI Filing Summary

Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander report beneficial ownership of Catalyst Acquisition Corp. Class A Ordinary Shares. They disclose 1,483,000 shares, representing 7.3% of the class, held through entities over which they have shared voting and dispositive power.

The filing states they have 0 shares with sole voting or dispositive power and 1,483,000 shares with shared voting and shared dispositive power. The reporting persons expressly state that this should not be construed as an admission of beneficial ownership of the securities held by such entities.

Key Figures

Shares beneficially owned: 1,483,000 shares Percent of class: 7.3% Sole voting power: 0 shares +2 more

5 metrics

Shares beneficially owned 1,483,000 shares Class A Ordinary Shares of Catalyst Acquisition Corp. reported on Schedule 13G

Percent of class 7.3% Ownership percentage of Catalyst Acquisition Corp. Class A Ordinary Shares

Sole voting power 0 shares Shares over which the reporting persons have sole voting power

Shared voting power 1,483,000 shares Shares over which the reporting persons have shared voting power

Shared dispositive power 1,483,000 shares Shares over which the reporting persons have shared dispositive power

Key Terms

beneficial ownership, shared voting power, shared dispositive power, Schedule 13G, +1 more

5 terms

beneficial ownership financial

"The securities disclosed herein as potentially beneficially owned by Millennium Management LLC"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

shared voting power financial

"Shared Voting Power 1,483,000.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 1,483,000.00"

Schedule 13G regulatory

"Millennium reports its position in a Schedule 13G"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

Joint Filing Agreement regulatory

"Exhibit I: Joint Filing Agreement, dated as of August 3, 2026"

FAQ

What ownership stake in Catalyst Acquisition Corp. (CATLU) does Millennium report?

Millennium and related reporting persons disclose beneficial ownership of 1,483,000 Class A Ordinary Shares of Catalyst Acquisition Corp., representing 7.3% of the class, held through entities over which they have shared voting and dispositive power.

Who are the reporting persons on the Schedule 13G for CATLU?

The Schedule 13G lists Millennium Management LLC, Millennium Group Management LLC, and Israel A. Englander as reporting persons regarding Catalyst Acquisition Corp. Class A Ordinary Shares, with shared voting and investment discretion over the reported securities.

How many CATLU shares does Millennium have sole versus shared voting power over?

The reporting persons state they have 0 shares with sole voting power and 1,483,000 shares with shared voting power. They also report the same 1,483,000 shares as subject to shared dispositive power and none under sole dispositive power.

What percentage of Catalyst Acquisition Corp. does Millennium’s 1,483,000 shares represent?

The filing reports that the 1,483,000 Class A Ordinary Shares represent 7.3% of the outstanding class of Catalyst Acquisition Corp. This percentage reflects the reporting persons’ beneficial ownership position as defined for Schedule 13G purposes.

Does Millennium admit full beneficial ownership of its reported CATLU shares?

The reporting persons explicitly state that the disclosure of securities held by controlled entities should not be construed as an admission by Millennium Management LLC, Millennium Group Management LLC or Israel A. Englander of beneficial ownership of those securities.

What agreement accompanies the Millennium Schedule 13G for CATLU?

The Schedule 13G includes Exhibit I, a Joint Filing Agreement dated August 3, 2026, among Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander, governing their joint submission as reporting persons for this ownership filing.

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Available on EDGAR 08/10/2026 - 05:45 PM Accepted by SEC EDGAR 08/04/2026 - 06:23 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Catalyst Acquisition Corp.

(Name of Issuer)

Class A Ordinary Shares, par value $0.0001 per share

(Title of Class of Securities)

G1955J120

(CUSIP Number)

07/28/2026

(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)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): G1955J120

1

Names of Reporting Persons

Millennium Management LLC

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,483,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,483,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,483,000.00

10

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

11

Percent of class represented by amount in row (9)

7.3 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): G1955J120

1

Names of Reporting Persons

Millennium Group Management LLC

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,483,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,483,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,483,000.00

10

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

11

Percent of class represented by amount in row (9)

7.3 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): G1955J120

1

Names of Reporting Persons

Israel A. Englander

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,483,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,483,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,483,000.00

10

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

11

Percent of class represented by amount in row (9)

7.3 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Catalyst Acquisition Corp.
(b)	Address of issuer's principal executive offices: 1007 Ocean Avenue, Suite 501, Santa Monica, California 90403
Item 2.
(a)	Name of person filing: Millennium Management LLC Millennium Group Management LLC Israel A. Englander
(b)	Address or principal business office or, if none, residence: Millennium Management LLC 399 Park Avenue New York, New York 10022 Millennium Group Management LLC 399 Park Avenue New York, New York 10022 Israel A. Englander c/o Millennium Management LLC 399 Park Avenue New York, New York 10022
(c)	Citizenship: Millennium Management LLC - Delaware Millennium Group Management LLC - Delaware Israel A. Englander - United States
(d)	Title of class of securities: Class A Ordinary Shares, par value $0.0001 per share
(e)	CUSIP Number(s): G1955J120
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).
Item 4.	Ownership
(a)	Amount beneficially owned: See response to Item 9 on each cover page.
(b)	Percent of class: See response to Item 11 on each cover page.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See response to Item 5 on each cover page.
	(ii) Shared power to vote or to direct the vote: See response to Item 6 on each cover page.
	(iii) Sole power to dispose or to direct the disposition of: See response to Item 7 on each cover page.
	(iv) Shared power to dispose or to direct the disposition of: See response to Item 8 on each cover page. The securities disclosed herein as potentially beneficially owned by Millennium Management LLC, Millennium Group Management LLC and Mr. Englander are held by entities subject to voting control and investment discretion by Millennium Management LLC and/or other investment managers that may be controlled by Millennium Group Management LLC (the managing member of Millennium Management LLC) and Mr. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). The foregoing should not be construed in and of itself as an admission by Millennium Management LLC, Millennium Group Management LLC or Mr. Englander as to beneficial ownership of the securities held by such entities.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
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 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.

Millennium Management LLC

Signature:	/s/ Gil Raviv
Name/Title:	Gil Raviv, Global General Counsel
Date:	08/03/2026

Millennium Group Management LLC

Signature:	/s/ Gil Raviv
Name/Title:	Gil Raviv, Global General Counsel
Date:	08/03/2026

Israel A. Englander

Signature:	/s/ Israel A. Englander
Name/Title:	Israel A. Englander
Date:	08/03/2026

Exhibit Information

Exhibit I: Joint Filing Agreement, dated as of August 3, 2026, by and among Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander.