As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Catalyst Acquisition Corp. The largest reported stake is Catalyst Sponsor LLC's, at 22.2%. 5 filings are on record since August 3, 2026 (Schedule 13D, August 5, 2026).
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Key facts
- · Reporting person: Integrated Core Strategies (US) LLC · Sole voting: 0 · Shared voting: 1,091,560 · Sole dispositive: 0 · Shared dispositive: 1,091,560 · SCHEDULE 13G/A, 2026-11-02
- · Holder: Millennium Management LLC · Percent: 7.7% · SCHEDULE 13G/A
- · Reporting person: Catalyst Sponsor LLC · Sole voting: 6,020,000 · Shared voting: 0 · Sole dispositive: 6,020,000 · Shared dispositive: 0 · SCHEDULE 13D, 2026-08-05
- · Holder: Millennium Management LLC · Percent: 7.3% · SCHEDULE 13G
- · Reporting person: Linden Capital L.P. · Sole voting: 0 · Shared voting: 1,252,088 · Sole dispositive: 0 · Shared dispositive: 1,252,088 · SCHEDULE 13G, 2026-08-03
Catalyst Acquisition Corp. has 5 Schedule 13D or 13G filings on record since 2026-08-03. 3 holders' latest filing reports 5% or more of class a ordinary shares, par value $0.0001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Catalyst Sponsor LLC | 22.2% | 6,020,000 | SCHEDULE 13D, 2026-08-05 | 2026-07-29 |
| Linden Advisors LP | 6.4% | 1,300,000 | SCHEDULE 13G, 2026-08-03 | 2026-07-29 |
| Millennium Management LLC | 6% | 1,291,560 | SCHEDULE 13G/A, 2026-11-02 | 2026-09-30 |
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More on Catalyst Acquisition Corp. and the records around it.
Companies that share a holder
- Linden Capital L.P. also filed stake reports on 73 other companies: Southport Acquisition Corp. II (Oct 2026), NewHold Investment Corp IV (Sep 2026), Haymaker Acquisition Corp V (Sep 2026)
- Integrated Core Strategies (US) LLC also filed stake reports on 121 other companies: RxSight, Inc. (Nov 2026), Ares Acquisition Corporation III (Oct 2026), Apollo Commercial Real Estate Finance, Inc. (Oct 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Catalyst Sponsor LLC | 6,020,000 | 0 | 6,020,000 | 0 | SCHEDULE 13D, 2026-08-05 |
| Linden Capital L.P. | 0 | 1,252,088 | 0 | 1,252,088 | SCHEDULE 13G, 2026-08-03 |
| Linden GP LLC | 0 | 1,252,088 | 0 | 1,252,088 | SCHEDULE 13G, 2026-08-03 |
| Linden Advisors LP | 0 | 1,300,000 | 0 | 1,300,000 | SCHEDULE 13G, 2026-08-03 |
| Siu Min Wong | 0 | 1,300,000 | 0 | 1,300,000 | SCHEDULE 13G, 2026-08-03 |
| Integrated Core Strategies (US) LLC | 0 | 1,091,560 | 0 | 1,091,560 | SCHEDULE 13G/A, 2026-11-02 |
| Millennium Management LLC | 0 | 1,291,560 | 0 | 1,291,560 | SCHEDULE 13G/A, 2026-11-02 |
| Millennium Group Management LLC | 0 | 1,291,560 | 0 | 1,291,560 | SCHEDULE 13G/A, 2026-11-02 |
| Israel A. Englander | 0 | 1,291,560 | 0 | 1,291,560 | SCHEDULE 13G/A, 2026-11-02 |
The latest filing identifies Catalyst Acquisition Corp. by CUSIP G1955J104 and gives its principal executive office as 1007 Ocean Avenue, Suite 501, Santa Monica, CA 90403 (SCHEDULE 13G/A, 2026-11-02).
Source of funds (Item 3)
The aggregate purchase price for the Ordinary Shares currently beneficially owned by the Reporting Person was $2,725,000. The source of these funds was the working capital of the Sponsor.Catalyst Sponsor LLC, SCHEDULE 13D, 2026-08-05
Purpose of Transaction (Item 4)
Catalyst Sponsor LLC
In connection with the organization of the Issuer, on January 7, 2026, the Sponsor paid $25,000 to cover certain of the Issuer's offering costs in exchange for 8,625,000 Class B Ordinary Shares (the "Founder Shares"), pursuant to the Securities Subscription Agreement dated as of January 7, 2026 between the Sponsor and the Issuer (the "Founder Share Purchase Agreement") as more fully described in Item 6 of this Section 13D, which information is incorporated by reference. On June 26, 2026, the Sponsor surrendered, for no consideration, 2,875,000 Founder Shares, which were canceled, resulting in the Sponsor holding 5,750,000 Founder Shares, at approximately $0.004 per share. Of the 5,750,000 Class B Ordinary Shares held, up to 462,500 shares remain subject to forfeiture in the event that the underwriter in the Issuer's initial public offering does not fully exercise its over-allotment option. On July 27, 2026, simultaneously with the consummation of the Issuer's Initial Public Offering (the "IPO"), the Sponsor purchased 270,000 units ("Placement Units") of the Issuer at $10.00 per Placement Unit, pursuant to a Private Placement Units Purchase Agreement, dated as of July 27, 2026, by and between the Issuer and the Sponsor (the "Placement Units Purchase Agreement"), as more fully described in Item 6 of this Schedule 13D, which information is incorporated herein by reference. Each Placement Unit consists of one Class A Ordinary Share and one right to receive one seventh (1/7) of a …The first part of Item 4 of the SCHEDULE 13D filed 2026-08-05; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-08-03 | Linden Advisors LP | 6.4% | SCHEDULE 13G |
| 2026-08-04 | Millennium Management LLC | 7.3% | SCHEDULE 13G |
| 2026-08-05 | Catalyst Sponsor LLC | 22.2% | SCHEDULE 13D |
| 2026-08-24 | Millennium Management LLC | 7.7% | SCHEDULE 13G/A |
| 2026-11-02 | Millennium Management LLC | 6% | SCHEDULE 13G/A |
Questions about who owns Catalyst Acquisition Corp.
Who owns Catalyst Acquisition Corp.?
On this page, 3 holders' latest ownership filings report 5% or more of Catalyst Acquisition Corp.: Catalyst Sponsor LLC (22.2%, Schedule 13D, filed 2026-08-05), Linden Advisors LP (6.4%, Schedule 13G, filed 2026-08-03) and Millennium Management LLC (6%, Schedule 13G/A, filed 2026-11-02).
Who are the largest shareholders of Catalyst Acquisition Corp.?
By the share each holder's latest filing reports, the largest holders of Catalyst Acquisition Corp. on this page are Catalyst Sponsor LLC (22.2%), Linden Advisors LP (6.4%) and Millennium Management LLC (6%).
When did Catalyst Sponsor LLC buy into Catalyst Acquisition Corp.?
The filings give report dates, not purchase dates. The earliest filing from Catalyst Sponsor LLC on this page is the Schedule 13D, filed 2026-08-05, reporting 22.2%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 5 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Catalyst Acquisition Corp.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| July 29, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| July 28, 2026 | IPO filing, Form 424B4 | $10 a share | IPO filings | Source |
| July 8, 2026 | IPO filing, Form S-1 | — | IPO filings | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.