As of November 6, 2026, 7 holders' latest Schedule 13D or 13G filings report owning 5% or more of GigCapital9 Corp. The largest reported stake is Tenor Capital Management Company, L.P.'s, at 8.6%. 13 filings are on record since February 2, 2026 (Schedule 13G, February 2, 2026).
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Key facts
- · Reporting person: Highbridge Capital Management, LLC · Sole voting: 1,356,252 · Shared voting: 0 · Sole dispositive: 1,356,252 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-14
- · Reporting person: AQR Capital Management, LLC · Sole voting: 0 · Shared voting: 1,473,524 · Sole dispositive: 0 · Shared dispositive: 1,473,524 · SCHEDULE 13G/A, 2026-08-13
- · Reporting person: Lighthouse Investment Partners, LLC · Sole voting: 0 · Shared voting: 1,483,796 · Sole dispositive: 0 · Shared dispositive: 1,483,796 · SCHEDULE 13G/A, 2026-08-11
- · Holder: Glazer Capital, LLC · Percent: 8.48% · SCHEDULE 13G
- · Holder: Aristeia Capital, L.L.C. · Percent: 5.45% · SCHEDULE 13G
GigCapital9 Corp. has 13 Schedule 13D or 13G filings on record since 2026-02-02. 7 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 |
|---|---|---|---|---|
| Tenor Capital Management Company, L.P. | 8.6% | 2,178,000 | SCHEDULE 13G, 2026-02-02 | 2026-01-27 |
| Yakira Capital Management, Inc. | 8.48% | 2,178,000 | SCHEDULE 13G, 2026-04-08 | 2026-03-31 |
| Glazer Capital, LLC | 8.48% | 2,178,000 | SCHEDULE 13G, 2026-05-14 | 2026-03-31 |
| AQR Capital Management, LLC | 5.74% | 1,473,524 | SCHEDULE 13G/A, 2026-08-13 | 2026-06-30 |
| The Goldman Sachs Group, Inc. | 5.7% | 1,466,573 | SCHEDULE 13G, 2026-05-12 | 2026-03-31 |
| Aristeia Capital, L.L.C. | 5.45% | 1,400,000 | SCHEDULE 13G, 2026-05-14 | 2026-03-31 |
| Highbridge Capital Management, LLC | 5.3% | 1,356,252 | SCHEDULE 13G, 2026-08-14 | 2026-06-30 |
| Millennium Management LLC | 4.6% | 1,175,000 | SCHEDULE 13G, 2026-02-03 | 2026-01-27 |
| Lighthouse Investment Partners, LLC | 4.06% | 1,483,796 | SCHEDULE 13G/A, 2026-08-11 | 2026-06-30 |
| Harraden Circle Investments, LLC | 0% | 0 | SCHEDULE 13G/A, 2026-05-14 | 2026-03-31 |
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More on GigCapital9 Corp. and the records around it.
Companies that share a holder
- Yakira Capital Management, Inc. also filed stake reports on 4 other companies: BOA Acquisition Corp. II (Oct 2026), SPACSphere Acquistion Corp. (Apr 2026), GigCapital7 Corp. (Jan 2026)
- Lighthouse Investment Partners, LLC also filed stake reports on 8 other companies: Cohen Circle Acquisition Corp. II (May 2026), Hennessy Capital Investment Corp. VII (May 2026), SPACSphere Acquisition Corp. (May 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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What the Full Report on GigCapital9 Corp. covers
The Short Answer
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What They Do, And How The Money Works
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| AQR Capital Management, LLC | 0 | 1,473,524 | 0 | 1,473,524 | SCHEDULE 13G/A, 2026-08-13 |
| AQR Capital Management Holdings, LLC | 0 | 1,473,524 | 0 | 1,473,524 | SCHEDULE 13G/A, 2026-08-13 |
| AQR Arbitrage, LLC | 0 | 1,473,524 | 0 | 1,473,524 | SCHEDULE 13G/A, 2026-08-13 |
| Highbridge Capital Management, LLC | 1,356,252 | 0 | 1,356,252 | 0 | SCHEDULE 13G, 2026-08-14 |
| Lighthouse Investment Partners, LLC | 0 | 1,483,796 | 0 | 1,483,796 | SCHEDULE 13G/A, 2026-08-11 |
| MAP 136 Segregated Portfolio, a segregated portfolio of LMA SPC | 0 | 1,483,796 | 0 | 1,483,796 | SCHEDULE 13G/A, 2026-08-11 |
| MAP 204 Segregated Portfolio, a segregated portfolio of LMA SPC | 0 | 1,483,796 | 0 | 1,483,796 | SCHEDULE 13G/A, 2026-08-11 |
| MAP 214 Segregated Portfolio, a segregated portfolio of LMA SPC | 0 | 1,483,796 | 0 | 1,483,796 | SCHEDULE 13G/A, 2026-08-11 |
| Shaolin Capital Partners SP, a segregated portfolio of PW MAP SPC | 0 | 1,483,796 | 0 | 1,483,796 | SCHEDULE 13G/A, 2026-08-11 |
| Eagle Harbor Multi-Strategy Master Fund Limited | 0 | 1,483,796 | 0 | 1,483,796 | SCHEDULE 13G/A, 2026-08-11 |
The latest filing identifies GigCapital9 Corp. by CUSIP G3865B114 and gives its principal executive office as 1731 Embarcadero Rd., Suite 200, Palo Alto, CA 94303 (SCHEDULE 13G, 2026-08-14).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-02-02 | Tenor Capital Management Company, L.P. | 8.6% | SCHEDULE 13G |
| 2026-02-03 | Millennium Management LLC | 4.6% | SCHEDULE 13G |
| 2026-02-03 | Harraden Circle Investments, LLC | 9.99% | SCHEDULE 13G |
| 2026-04-08 | Yakira Capital Management, Inc. | 8.48% | SCHEDULE 13G |
| 2026-05-12 | The Goldman Sachs Group, Inc. | 5.7% | SCHEDULE 13G |
| 2026-05-13 | AQR Capital Management, LLC | 8.48% | SCHEDULE 13G |
| 2026-05-14 | Glazer Capital, LLC | 8.48% | SCHEDULE 13G |
| 2026-05-14 | Aristeia Capital, L.L.C. | 5.45% | SCHEDULE 13G |
| 2026-05-14 | Lighthouse Investment Partners, LLC | 5.75% | SCHEDULE 13G |
| 2026-05-14 | Harraden Circle Investments, LLC | 0% | SCHEDULE 13G/A |
| 2026-08-11 | Lighthouse Investment Partners, LLC | 4.06% | SCHEDULE 13G/A |
| 2026-08-13 | AQR Capital Management, LLC | 5.74% | SCHEDULE 13G/A |
| 2026-08-14 | Highbridge Capital Management, LLC | 5.3% | SCHEDULE 13G |
Questions about who owns GigCapital9 Corp.
Who owns GigCapital9 Corp.?
On this page, 7 holders' latest ownership filings report 5% or more of GigCapital9 Corp.: Tenor Capital Management Company, L.P. (8.6%, Schedule 13G, filed 2026-02-02), Yakira Capital Management, Inc. (8.48%, Schedule 13G, filed 2026-04-08), Glazer Capital, LLC (8.48%, Schedule 13G, filed 2026-05-14), AQR Capital Management, LLC (5.74%, Schedule 13G/A, filed 2026-08-13) and The Goldman Sachs Group, Inc. (5.7%, Schedule 13G, filed 2026-05-12); 2 more are listed above.
Who are the largest shareholders of GigCapital9 Corp.?
By the share each holder's latest filing reports, the largest holders of GigCapital9 Corp. on this page are Tenor Capital Management Company, L.P. (8.6%), Yakira Capital Management, Inc. (8.48%) and Glazer Capital, LLC (8.48%).
When did Tenor Capital Management Company, L.P. buy into GigCapital9 Corp.?
The filings give report dates, not purchase dates. The earliest filing from Tenor Capital Management Company, L.P. on this page is the Schedule 13G, filed 2026-02-02, reporting 8.6%.
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%); 13 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.