As of November 6, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Churchill Capital Corp Ix. The largest reported stake is Churchill Sponsor IX LLC's, at 21.6%. 14 filings are on record since August 8, 2025 (Schedule 13D/A, September 22, 2025).
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Key facts
- · Reporting person: Magnetar Financial LLC · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-09-04
- · Reporting person: Fort Baker Capital Management LP · Sole voting: 0 · Shared voting: 2,873,655 · Sole dispositive: 0 · Shared dispositive: 2,873,655 · SCHEDULE 13G/A, 2026-08-14
- · Reporting person: Meteora Capital, LLC · Sole voting: 0 · Shared voting: 1,866,820 · Sole dispositive: 0 · Shared dispositive: 1,866,820 · SCHEDULE 13G, 2026-08-14
- · Reporting person: W. R. Berkley Corporation · Sole voting: 0 · Shared voting: 104,360 · Sole dispositive: 0 · Shared dispositive: 104,360 · SCHEDULE 13G/A, 2026-08-05
- · Holder: Fort Baker Capital Management LP · Percent: 4.9% · SCHEDULE 13G/A
Churchill Capital Corp Ix has 14 Schedule 13D or 13G filings on record since 2025-08-08. 4 holders' latest filing reports 5% or more of class a ordinary shares, par value $0.0001. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Churchill Sponsor IX LLC | 21.6% | 7,912,500 | SCHEDULE 13D/A, 2025-09-22 | 2025-09-18 |
| Fort Baker Capital Management LP | 9.7% | 2,873,655 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| Meteora Capital, LLC | 6.33% | 1,866,820 | SCHEDULE 13G, 2026-08-14 | 2026-06-30 |
| Tenor Capital Management Company, L.P. | 5.9% | 1,750,000 | SCHEDULE 13G, 2025-10-16 | 2025-10-09 |
| Barclays PLC | 4.18% | 1,233,167 | SCHEDULE 13G/A, 2025-08-12 | 2025-06-30 |
| The Goldman Sachs Group, Inc. | 2.9% | 840,243 | SCHEDULE 13G/A, 2026-05-11 | 2026-03-31 |
| Sculptor Capital LP | 1.7% | 500,000 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| W. R. Berkley Corporation | 0.4% | 104,360 | SCHEDULE 13G/A, 2026-08-05 | 2026-06-30 |
| Magnetar Financial LLC | 0% | 0 | SCHEDULE 13G/A, 2026-09-04 | 2026-06-30 |
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More on Churchill Capital Corp Ix and the records around it.
Companies that share a holder
- Fort Baker Capital Management LP also filed stake reports on 26 other companies: Agriculture & Natural Solutions Acquisition Corp (Aug 2026), Bleichroeder Acquisition Corp. II (Aug 2026), Cartesian Growth Corp III (Aug 2026)
- Sculptor Capital LP also filed stake reports on 40 other companies: Helix Acquisition Corp. III (Oct 2026), Live Oak Acquisition Corp. VI (Oct 2026), Amanat Acquisition Corp (Aug 2026)
- Tenor Capital Management Company, L.P. also filed stake reports on 41 other companies: Archimedes Tech SPAC Partners II Co. (Aug 2026), Armada Acquisition Corp. II (Aug 2026), Blue Acquisition Corp. (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Fort Baker Capital Management LP | 0 | 2,873,655 | 0 | 2,873,655 | SCHEDULE 13G/A, 2026-08-14 |
| Steven Patrick Pigott | 0 | 2,873,655 | 0 | 2,873,655 | SCHEDULE 13G/A, 2026-08-14 |
| Fort Baker Capital, LLC | 0 | 2,873,655 | 0 | 2,873,655 | SCHEDULE 13G/A, 2026-08-14 |
| Meteora Capital, LLC | 0 | 1,866,820 | 0 | 1,866,820 | SCHEDULE 13G, 2026-08-14 |
| W. R. Berkley Corporation | 0 | 104,360 | 0 | 104,360 | SCHEDULE 13G/A, 2026-08-05 |
| Berkley Insurance Company | 0 | 104,360 | 0 | 104,360 | SCHEDULE 13G/A, 2026-08-05 |
| Magnetar Financial LLC | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-09-04 |
| Magnetar Capital Partners LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-09-04 |
| Supernova Management LLC | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-09-04 |
| David J. Snyderman | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-09-04 |
The latest filing identifies Churchill Capital Corp Ix by CUSIP G21301109 and gives its principal executive office as 640 Fifth Avenue, 14th Floor, New York, NY 10019 (SCHEDULE 13G/A, 2026-09-04).
Purpose of Transaction (Item 4)
Churchill Sponsor IX LLC
Item 4 is being amended to reflect certain updates reported in the Form S-4 Registration Statement filed by the Issuer on September 19, 2025. Merger Agreement As disclosed in the Registration Statement on Form S-4 and filed by the Issuer on September 19, 2025, the Issuer entered into an Agreement and Plan of Merger and Reorganization, dated as of June 5, 2025 (as amended by Amendment No. 1 dated September 8, 2025 and Amendment No. 2 dated September 18, 2025 and as may be further amended, modified, supplemented or waived from time to time, the "Merger Agreement") by and among the Issuer, AL Merger Sub I, Inc., a Delaware corporation and direct, wholly owned subsidiary of the Issuer ("Merger Sub I"), AL Merger Sub II, LLC, a Delaware limited liability company and a direct, wholly-owned subsidiary of the Issuer ("Merger Sub II") and Plus Automation, Inc., a Delaware corporation ("Plus"). Pursuant to the Merger Agreement, and on the terms and subject to the satisfaction or waiver of the conditions set forth therein, the parties thereto intend to effect a business combination transaction by which Merger Sub I will merge with and into Plus, with Plus continuing as the surviving corporation and a wholly-owned subsidiary of the Issuer ("First Merger"), and immediately following the First Merger, the surviving corporation of the First Merger will merge with and into Merger Sub II, with Merger Sub II continuing as the surviving entity (the "Second Merger" and, together with the …The first part of Item 4 of the SCHEDULE 13D/A filed 2025-09-22; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-08 | Magnetar Financial LLC | 6.72% | SCHEDULE 13G/A |
| 2025-08-12 | Barclays PLC | 4.18% | SCHEDULE 13G/A |
| 2025-08-14 | The Goldman Sachs Group, Inc. | 7% | SCHEDULE 13G |
| 2025-08-14 | Sculptor Capital LP | 1.7% | SCHEDULE 13G/A |
| 2025-09-22 | Churchill Sponsor IX LLC | 21.6% | SCHEDULE 13D/A |
| 2025-10-16 | Tenor Capital Management Company, L.P. | 5.9% | SCHEDULE 13G |
| 2025-11-14 | Fort Baker Capital Management LP | 9.6% | SCHEDULE 13G/A |
| 2026-05-07 | W.R. Berkley Corporation | 6.1% | SCHEDULE 13G |
| 2026-05-11 | The Goldman Sachs Group, Inc. | 2.9% | SCHEDULE 13G/A |
| 2026-05-15 | Fort Baker Capital Management LP | 4.9% | SCHEDULE 13G/A |
| 2026-08-05 | W. R. Berkley Corporation | 0.4% | SCHEDULE 13G/A |
| 2026-08-14 | Fort Baker Capital Management LP | 9.7% | SCHEDULE 13G/A |
| 2026-08-14 | Meteora Capital, LLC | 6.33% | SCHEDULE 13G |
| 2026-09-04 | Magnetar Financial LLC | 0% | SCHEDULE 13G/A |
Questions about who owns Churchill Capital Corp Ix
Who owns Churchill Capital Corp Ix?
On this page, 4 holders' latest ownership filings report 5% or more of Churchill Capital Corp Ix: Churchill Sponsor IX LLC (21.6%, Schedule 13D/A, filed 2025-09-22), Fort Baker Capital Management LP (9.7%, Schedule 13G/A, filed 2026-08-14), Meteora Capital, LLC (6.33%, Schedule 13G, filed 2026-08-14) and Tenor Capital Management Company, L.P. (5.9%, Schedule 13G, filed 2025-10-16).
Who are the largest shareholders of Churchill Capital Corp Ix?
By the share each holder's latest filing reports, the largest holders of Churchill Capital Corp Ix on this page are Churchill Sponsor IX LLC (21.6%), Fort Baker Capital Management LP (9.7%) and Meteora Capital, LLC (6.33%).
When did Churchill Sponsor IX LLC buy into Churchill Capital Corp Ix?
The filings give report dates, not purchase dates. The earliest filing from Churchill Sponsor IX LLC on this page is the Schedule 13D/A, filed 2025-09-22, reporting 21.6%. That earliest filing is itself an amendment, which updates an earlier report.
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%); 14 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.
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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.