As of November 6, 2026, 6 holders' latest Schedule 13D or 13G filings report owning 5% or more of Churchill Capital Corp. XII. The largest reported stake is Churchill Sponsor XII LLC's, at 25.47%. 7 filings are on record since May 4, 2026 (Schedule 13D, May 6, 2026).
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Key facts
- · Reporting person: Empyrean Capital Partners, LP · Sole voting: 0 · Shared voting: 2,700,000 · Sole dispositive: 0 · Shared dispositive: 2,700,000 · SCHEDULE 13G, 2026-08-14
- · Reporting person: Magnetar Financial LLC · Sole voting: 0 · Shared voting: 2,700,000 · Sole dispositive: 0 · Shared dispositive: 2,700,000 · SCHEDULE 13G, 2026-08-13
- · Reporting person: Adage Capital Management, L.P. · Sole voting: 0 · Shared voting: 2,700,000 · Sole dispositive: 0 · Shared dispositive: 2,700,000 · SCHEDULE 13G, 2026-08-12
- · Holder: Churchill Sponsor XII LLC · Percent: 25.47% · SCHEDULE 13D
- · Holder: MMCAP International Inc. SPC · Percent: 6.5% · SCHEDULE 13G
Churchill Capital Corp. XII has 7 Schedule 13D or 13G filings on record since 2026-05-04. 6 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 |
|---|---|---|---|---|
| Churchill Sponsor XII LLC | 25.47% | 14,150,000 | SCHEDULE 13D, 2026-05-06 | 2026-04-29 |
| MMCAP International Inc. SPC | 6.5% | 2,700,000 | SCHEDULE 13G, 2026-05-05 | 2026-04-28 |
| Adage Capital Management, L.P. | 6.47% | 2,700,000 | SCHEDULE 13G, 2026-08-12 | 2026-06-30 |
| Magnetar Financial LLC | 6.47% | 2,700,000 | SCHEDULE 13G, 2026-08-13 | 2026-06-30 |
| Empyrean Capital Partners, LP | 6.47% | 2,700,000 | SCHEDULE 13G, 2026-08-14 | 2026-06-30 |
| Sculptor Capital LP | 5.56% | 2,300,000 | SCHEDULE 13G, 2026-05-04 | 2026-04-29 |
| Millennium Management LLC | 4.8% | 2,000,000 | SCHEDULE 13G, 2026-05-05 | 2026-04-28 |
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More on Churchill Capital Corp. XII and the records around it.
Churchill Capital Corp. XII elsewhere on the record
- Leadership changes Jul 2026
Companies that share a holder
- Empyrean Capital Partners, LP also filed stake reports on 9 other companies: Churchill Capital Corp XI (Aug 2026), Altice USA, Inc. (Aug 2026), Bain Capital GSS Investment Corp. (May 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)
- MMCAP International Inc. SPC also filed stake reports on 52 other companies: BHAV Acquisition Corp II (Nov 2026), Haymaker Acquisition Corp V (Sep 2026), Thunder Bridge Capital Partners V, Ltd. (Aug 2026)
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What the Full Report on Churchill Capital Corp. XII covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
12 cited sources found
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Adage Capital Management, L.P. | 0 | 2,700,000 | 0 | 2,700,000 | SCHEDULE 13G, 2026-08-12 |
| Robert Atchinson | 0 | 2,700,000 | 0 | 2,700,000 | SCHEDULE 13G, 2026-08-12 |
| Phillip Gross | 0 | 2,700,000 | 0 | 2,700,000 | SCHEDULE 13G, 2026-08-12 |
| Magnetar Financial LLC | 0 | 2,700,000 | 0 | 2,700,000 | SCHEDULE 13G, 2026-08-13 |
| Magnetar Capital Partners LP | 0 | 2,700,000 | 0 | 2,700,000 | SCHEDULE 13G, 2026-08-13 |
| Supernova Management LLC | 0 | 2,700,000 | 0 | 2,700,000 | SCHEDULE 13G, 2026-08-13 |
| David J. Snyderman | 0 | 2,700,000 | 0 | 2,700,000 | SCHEDULE 13G, 2026-08-13 |
| Empyrean Capital Partners, LP | 0 | 2,700,000 | 0 | 2,700,000 | SCHEDULE 13G, 2026-08-14 |
| Meron Amos | 0 | 2,700,000 | 0 | 2,700,000 | SCHEDULE 13G, 2026-08-14 |
The latest filing identifies Churchill Capital Corp. XII by CUSIP G2131M102 and gives its principal executive office as 640 Fifth Avenue, 14th Floor, New York, NY 10019 (SCHEDULE 13G, 2026-08-14).
What the percentages are based on
As of June 30, 2026, each of the Reporting Persons were deemed to be the beneficial owner constituting approximately 6.47% of the total number of shares outstanding (based upon the information provided by the Issuer in the Form 10-Q filed on June 9, 2026 there were approximately 41,750,000 Shares outstanding).Magnetar Financial LLC, SCHEDULE 13G, 2026-08-13
Purpose of Transaction (Item 4)
Churchill Sponsor XII LLC
In connection with the organization of the Issuer, on September 30, 2025, 14,375,000 Class B Ordinary Shares (the "Founder Shares") were purchased by the Sponsor for the amount of $25,000, pursuant to a Securities Subscription Agreement, dated as of September 30, 2025, by and between the Sponsor and the Issuer (the "Founder Share Purchase Agreement"), as more fully described in Item 6 of this Schedule 13D which information is incorporated herein by reference. In March 2026 and April 2026, the Issuer effected successive surrenders and recapitalizations, resulting in the Sponsor holding an aggregate of 13,800,000 Founder Shares. On April 29, 2026, simultaneously with the consummation of the Issuer's Initial Public Offering (the "IPO"), the Sponsor purchased 350,000 units ("Placement Units") of the Issuer at $10.00 per Placement Unit, pursuant to a Private Placement Units Purchase Agreement, dated as of April 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-tenth of a warrant, with each whole warrant exercisable into one Class A ordinary share at an exercise price of $11.50, subject to adjustment, commencing 30 days following the consummation of the Issuer's initial business combination (as described more fully in the Issuer's Final Prospectus dated April …The first part of Item 4 of the SCHEDULE 13D filed 2026-05-06; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-05-04 | Sculptor Capital LP | 5.56% | SCHEDULE 13G |
| 2026-05-05 | MMCAP International Inc. SPC | 6.5% | SCHEDULE 13G |
| 2026-05-05 | Millennium Management LLC | 4.8% | SCHEDULE 13G |
| 2026-05-06 | Churchill Sponsor XII LLC | 25.47% | SCHEDULE 13D |
| 2026-08-12 | Adage Capital Management, L.P. | 6.47% | SCHEDULE 13G |
| 2026-08-13 | Magnetar Financial LLC | 6.47% | SCHEDULE 13G |
| 2026-08-14 | Empyrean Capital Partners, LP | 6.47% | SCHEDULE 13G |
Questions about who owns Churchill Capital Corp. XII
Who owns Churchill Capital Corp. XII?
On this page, 6 holders' latest ownership filings report 5% or more of Churchill Capital Corp. XII: Churchill Sponsor XII LLC (25.47%, Schedule 13D, filed 2026-05-06), MMCAP International Inc. SPC (6.5%, Schedule 13G, filed 2026-05-05), Adage Capital Management, L.P. (6.47%, Schedule 13G, filed 2026-08-12), Magnetar Financial LLC (6.47%, Schedule 13G, filed 2026-08-13) and Empyrean Capital Partners, LP (6.47%, Schedule 13G, filed 2026-08-14); 1 more is listed above.
Who are the largest shareholders of Churchill Capital Corp. XII?
By the share each holder's latest filing reports, the largest holders of Churchill Capital Corp. XII on this page are Churchill Sponsor XII LLC (25.47%), MMCAP International Inc. SPC (6.5%) and Adage Capital Management, L.P. (6.47%).
When did Churchill Sponsor XII LLC buy into Churchill Capital Corp. XII?
The filings give report dates, not purchase dates. The earliest filing from Churchill Sponsor XII LLC on this page is the Schedule 13D, filed 2026-05-06, reporting 25.47%.
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%); 7 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 Churchill Capital Corp. XII
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| July 14, 2026 | Leadership change: Paul Lapping appointed, Director | — | Leadership changes | Source |
| April 29, 2026 | Leadership change: William Sherman appointed, Director, and 1 more | — | Leadership changes | Source |
| April 28, 2026 | IPO filing, Form 424B4 | — | IPO filings | Source |
| April 24, 2026 | IPO filing, Form S-1/A | — | IPO filings | Source |
| April 2, 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.