GigCapital8 Corp.
GIW- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002080019
No open-market purchases or sales by GigCapital8 Corp. insiders were filed in the last 90 days; 53 institutions reported holding it in 13F filings for Q2 2026, worth $241.9M in total; no superinvestor holds it.
Holders of 5% or more of GIW
Holders whose latest Schedule 13D or 13G filing reports 5% or more of GigCapital8 Corp., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Glazer Capital, LLC | 13G | 8.48%2.18M shares | New | Feb 12, 20261 filing | Feb 12, 2026 | SEC |
| AQR Capital Management LLC | 13G | 6.61%1.69M shares | New | Feb 12, 20261 filing | Feb 12, 2026 | SEC |
| Lynrock Lake LP | 13G | 5.40%1.47M shares | New | Feb 17, 20261 filing | Feb 17, 2026 | SEC |
| Westchester Capital Management, LLC | 13G | 5.14%1.32M shares | New | May 15, 20261 filing | May 15, 2026 | SEC |
| Berkley W R Corp | 13G | 5.00%1.29M shares | New | Feb 10, 20261 filing | Feb 10, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
5 Schedule 13D and 13G filings on GigCapital8 Corp., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 15, 20266:27 AM ET | Westchester Capital Management, LLCand 1 other | 13G | 5.14%1.32M shares | New | Mar 31, 2026 | SEC |
| Feb 17, 20269:56 PM ET | Lynrock Lake LPand 2 others | 13G | 5.40%1.47M shares | New | Dec 31, 2025 | SEC |
| Feb 12, 20264:11 PM ET | Glazer Capital, LLCand 1 other | 13G | 8.48%2.18M shares | New | Dec 31, 2025 | SEC |
| Feb 12, 202610:08 AM ET | AQR Capital Management LLCand 2 others | 13G | 6.61%1.69M shares | New | Dec 31, 2025 | SEC |
| Feb 10, 20268:53 PM ET | Berkley W R Corpand 1 other | 13G | 5.00%1.29M shares | New | Dec 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell GigCapital8 Corp. shares.
No Form 144 notices for GigCapital8 Corp. are on file.