As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of New Providence Acquisition Corp. III/Cayman. The largest reported stake is MMCAP International Inc. SPC's, at 7.1%. 7 filings are on record since August 8, 2025 (Schedule 13G/A, February 13, 2026).
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Key facts
- · Reporting person: AQR Capital Management, LLC · Sole voting: 0 · Shared voting: 1,409,778 · Sole dispositive: 0 · Shared dispositive: 1,409,778 · SCHEDULE 13G/A, 2026-08-12
- · Reporting person: MMCAP International Inc. SPC · Sole voting: 0 · Shared voting: 2,200,000 · Sole dispositive: 0 · Shared dispositive: 2,200,000 · SCHEDULE 13G/A, 2026-02-13
- · Reporting person: Healthcare of Ontario Pension Plan Trust Fund · Sole voting: 690,000 · Shared voting: 0 · Sole dispositive: 690,000 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-02-13
- · Holder: AQR Capital Management, LLC · Percent: 5.22% · SCHEDULE 13G/A
- · Holder: MMCAP International Inc. SPC · Percent: 7.12% · SCHEDULE 13G/A
New Providence Acquisition Corp. III/Cayman has 7 Schedule 13D or 13G filings on record since 2025-08-08. 2 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 |
|---|---|---|---|---|
| MMCAP International Inc. SPC | 7.1% | 2,200,000 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
| Magnetar Financial LLC | 5.66% | 1,750,000 | SCHEDULE 13G, 2025-08-08 | 2025-06-30 |
| AQR Capital Management, LLC | 4.56% | 1,409,778 | SCHEDULE 13G/A, 2026-08-12 | 2026-06-30 |
| Healthcare of Ontario Pension Plan Trust Fund | 2.2% | 690,000 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
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More on New Providence Acquisition Corp. III/Cayman and the records around it.
Companies that share a holder
- Healthcare of Ontario Pension Plan Trust Fund also filed stake reports on 27 other companies: Cambridge Acquisition Corp. (Aug 2026), General Purpose Acquisition Corp. (May 2026), Artius II Acquisition Inc. (Feb 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)
- MAGNETAR FINANCIAL LLC also filed stake reports on 97 other companies: Blue Acquisition Corp. (Sep 2026), CENTURION ACQUISITION CORP. (Sep 2026), Churchill Capital Corp IX (Sep 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| MMCAP International Inc. SPC | 0 | 2,200,000 | 0 | 2,200,000 | SCHEDULE 13G/A, 2026-02-13 |
| MM Asset Management Inc. | 0 | 2,200,000 | 0 | 2,200,000 | SCHEDULE 13G/A, 2026-02-13 |
| AQR Capital Management, LLC | 0 | 1,409,778 | 0 | 1,409,778 | SCHEDULE 13G/A, 2026-08-12 |
| AQR Capital Management Holdings, LLC | 0 | 1,409,778 | 0 | 1,409,778 | SCHEDULE 13G/A, 2026-08-12 |
| AQR Arbitrage, LLC | 0 | 1,409,778 | 0 | 1,409,778 | SCHEDULE 13G/A, 2026-08-12 |
| Healthcare of Ontario Pension Plan Trust Fund | 690,000 | 0 | 690,000 | 0 | SCHEDULE 13G/A, 2026-02-13 |
The latest filing identifies New Providence Acquisition Corp. III/Cayman by CUSIP G6476A102 and gives its principal executive office as 401 S COUNTY ROAD #2588, PALM BEACH, FL 33480 (SCHEDULE 13G/A, 2026-08-12).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-08 | Magnetar Financial LLC | 5.66% | SCHEDULE 13G |
| 2025-08-12 | MMCAP International Inc. SPC | 7.12% | SCHEDULE 13G/A |
| 2025-08-12 | AQR Capital Management, LLC | 7.12% | SCHEDULE 13G |
| 2025-11-12 | AQR Capital Management, LLC | 5.22% | SCHEDULE 13G/A |
| 2026-02-13 | MMCAP International Inc. SPC | 7.1% | SCHEDULE 13G/A |
| 2026-02-13 | Healthcare of Ontario Pension Plan Trust Fund | 2.2% | SCHEDULE 13G/A |
| 2026-08-12 | AQR Capital Management, LLC | 4.56% | SCHEDULE 13G/A |
Questions about who owns New Providence Acquisition Corp. III/Cayman
Who owns New Providence Acquisition Corp. III/Cayman?
On this page, 2 holders' latest ownership filings report 5% or more of New Providence Acquisition Corp. III/Cayman: MMCAP International Inc. SPC (7.1%, Schedule 13G/A, filed 2026-02-13) and Magnetar Financial LLC (5.66%, Schedule 13G, filed 2025-08-08).
Who are the largest shareholders of New Providence Acquisition Corp. III/Cayman?
By the share each holder's latest filing reports, the largest holders of New Providence Acquisition Corp. III/Cayman on this page are MMCAP International Inc. SPC (7.1%) and Magnetar Financial LLC (5.66%).
When did MMCAP International Inc. SPC buy into New Providence Acquisition Corp. III/Cayman?
The filings give report dates, not purchase dates. The earliest filing from MMCAP International Inc. SPC on this page is the Schedule 13G/A, filed 2025-08-12, reporting 7.12%; its latest, Schedule 13G/A filed 2026-02-13, reports 7.1%. 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%); 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 New Providence Acquisition Corp. III/Cayman
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| April 10, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| April 7, 2025 | 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.