As of November 10, 2026, 6 holders' latest Schedule 13D or 13G filings report owning 5% or more of GigCapital8 Corp. The largest reported stake is Glazer Capital, LLC's, at 8.48%. 9 filings are on record since October 10, 2025 (Schedule 13G, February 12, 2026).
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Key facts
- · Reporting person: W. R. Berkley Corporation · Sole voting: 0 · Shared voting: 1,588,000 · Sole dispositive: 0 · Shared dispositive: 1,588,000 · SCHEDULE 13G/A, 2026-11-09
- · Reporting person: Westchester Capital Management, LLC · Sole voting: 111,171 · Shared voting: 1,207,061 · Sole dispositive: 111,171 · Shared dispositive: 1,207,061 · SCHEDULE 13G, 2026-05-15
- · Reporting person: Lynrock Lake LP · Sole voting: 1,466,665 · Shared voting: 0 · Sole dispositive: 1,466,665 · Shared dispositive: 0 · SCHEDULE 13G, 2026-02-17
- · Reporting person: Harraden Circle Investments, LLC · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-02-13
- · Reporting person: Glazer Capital, LLC · Sole voting: 0 · Shared voting: 2,175,283 · Sole dispositive: 0 · Shared dispositive: 2,175,283 · SCHEDULE 13G, 2026-02-12
GigCapital8 Corp. has 9 Schedule 13D or 13G filings on record since 2025-10-10. 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 |
|---|---|---|---|---|
| Glazer Capital, LLC | 8.48% | 2,175,283 | SCHEDULE 13G, 2026-02-12 | 2025-12-31 |
| Tenor Capital Management Company, L.P. | 6.7% | 1,500,000 | SCHEDULE 13G, 2025-11-04 | 2025-10-06 |
| AQR Capital Management, LLC | 6.61% | 1,694,769 | SCHEDULE 13G, 2026-02-12 | 2025-12-31 |
| W. R. Berkley Corporation | 6.2% | 1,588,000 | SCHEDULE 13G/A, 2026-11-09 | 2026-09-30 |
| Lynrock Lake LP | 5.4% | 1,466,665 | SCHEDULE 13G, 2026-02-17 | 2025-12-31 |
| Westchester Capital Management, LLC | 5.14% | 1,318,232 | SCHEDULE 13G, 2026-05-15 | 2026-03-31 |
| Harraden Circle Investments, LLC | 0% | 0 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
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More on GigCapital8 Corp. and the records around it.
Companies that share a holder
- Lynrock Lake LP also filed stake reports on 12 other companies: RADCOM LTD (Sep 2026), TechTarget, Inc. (Aug 2026), Yext, Inc. (Jul 2026)
- Westchester Capital Management, LLC also filed stake reports on 31 other companies: Lakeshore Acquisition III Corp. (Aug 2026), Sizzle Acquisition Corp. II (Aug 2026), Tavia 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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What the Full Report on GigCapital8 Corp. 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
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Glazer Capital, LLC | 0 | 2,175,283 | 0 | 2,175,283 | SCHEDULE 13G, 2026-02-12 |
| Paul J. Glazer | 0 | 2,175,283 | 0 | 2,175,283 | SCHEDULE 13G, 2026-02-12 |
| W. R. Berkley Corporation | 0 | 1,588,000 | 0 | 1,588,000 | SCHEDULE 13G/A, 2026-11-09 |
| Berkley Insurance Company | 0 | 1,588,000 | 0 | 1,588,000 | SCHEDULE 13G/A, 2026-11-09 |
| Lynrock Lake LP | 1,466,665 | 0 | 1,466,665 | 0 | SCHEDULE 13G, 2026-02-17 |
| Lynrock Lake Partners LLC | 1,466,665 | 0 | 1,466,665 | 0 | SCHEDULE 13G, 2026-02-17 |
| Paul Cynthia | 1,466,665 | 0 | 1,466,665 | 0 | SCHEDULE 13G, 2026-02-17 |
| Westchester Capital Management, LLC | 111,171 | 1,207,061 | 111,171 | 1,207,061 | SCHEDULE 13G, 2026-05-15 |
| Westchester Capital Partners, LLC | 11,768 | 0 | 11,768 | 0 | SCHEDULE 13G, 2026-05-15 |
| Harraden Circle Investments, LLC | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Investors GP, LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Investors GP, LLC | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Investors, LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Special Opportunities, LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Strategic Investments, LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Concentrated, LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Frederick V. Fortmiller, Jr. | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
The latest filing identifies GigCapital8 Corp. by CUSIP G3864J100 and gives its principal executive office as 1731 Embarcadero Rd., Suite 200, Palo Alto, CA 94303 (SCHEDULE 13G/A, 2026-11-09).
What the percentages are based on
Percent of class as of December 31, 2025: Lynrock Lake LP - 5.4% Lynrock Lake Partners LLC - 5.4% Cynthia Paul - 5.4% Based on 25,657,625 Class A ordinary shares, par value $0.0001 per share ("Common Stock"), of GigCapital8 Corp.Lynrock Lake LP, SCHEDULE 13G, 2026-02-17
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-10-10 | Harraden Circle Investments, LLC | 8.49% | SCHEDULE 13G |
| 2025-11-04 | Tenor Capital Management Company, L.P. | 6.7% | SCHEDULE 13G |
| 2026-02-10 | W. R. Berkley Corporation | 5% | SCHEDULE 13G |
| 2026-02-12 | Glazer Capital, LLC | 8.48% | SCHEDULE 13G |
| 2026-02-12 | AQR Capital Management, LLC | 6.61% | SCHEDULE 13G |
| 2026-02-13 | Harraden Circle Investments, LLC | 0% | SCHEDULE 13G/A |
| 2026-02-17 | Lynrock Lake LP | 5.4% | SCHEDULE 13G |
| 2026-05-15 | Westchester Capital Management, LLC | 5.14% | SCHEDULE 13G |
| 2026-11-09 | W. R. Berkley Corporation | 6.2% | SCHEDULE 13G/A |
Questions about who owns GigCapital8 Corp.
Who owns GigCapital8 Corp.?
On this page, 6 holders' latest ownership filings report 5% or more of GigCapital8 Corp.: Glazer Capital, LLC (8.48%, Schedule 13G, filed 2026-02-12), Tenor Capital Management Company, L.P. (6.7%, Schedule 13G, filed 2025-11-04), AQR Capital Management, LLC (6.61%, Schedule 13G, filed 2026-02-12), W. R. Berkley Corporation (6.2%, Schedule 13G/A, filed 2026-11-09) and Lynrock Lake LP (5.4%, Schedule 13G, filed 2026-02-17); 1 more is listed above.
Who are the largest shareholders of GigCapital8 Corp.?
By the share each holder's latest filing reports, the largest holders of GigCapital8 Corp. on this page are Glazer Capital, LLC (8.48%), Tenor Capital Management Company, L.P. (6.7%) and AQR Capital Management, LLC (6.61%).
When did Glazer Capital, LLC buy into GigCapital8 Corp.?
The filings give report dates, not purchase dates. The earliest filing from Glazer Capital, LLC on this page is the Schedule 13G, filed 2026-02-12, reporting 8.48%.
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%); 9 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.