GIX: GigCapital9 Corp. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-08-14 | New 13G stake | Highbridge Capital Management, LLC | 5.30% | SEC | |
| 2026-08-13 | 13G amendment | AQR Capital Management, LLC | 5.74% | SEC | |
| 2026-08-11 | Fell below 5% | Lighthouse Investment Partners, LLC | 4.06% | SEC |
Institutional ownership (Q2 2026)
49 institutions reported holding $193.29M of GigCapital9 Corp. on Form 13F (31 the quarter before). 21 opened a new position and 3 sold out. Shares held by institutions: +42%.
| Largest holders | Shares | Value |
|---|---|---|
| TENOR CAPITAL MANAGEMENT Co., L.P. | 2,178,000 | $21.63M |
| AQR Arbitrage LLC | 1,473,524 | $14.63M |
| ARISTEIA CAPITAL, L.L.C. | 1,400,000 | $13.90M |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | 1,356,252 | $13.49M |
| MILLENNIUM MANAGEMENT LLC | 1,175,000 | $11.67M |
| WOLVERINE ASSET MANAGEMENT LLC | 928,507 | $9.22M |
| BERKLEY W R CORP | 882,431 | $8.78M |
| Decagon Asset Management LLP | 851,940 | $8.46M |
| Karpus Management, Inc. | 812,032 | $8.06M |
| D. E. Shaw & Co., Inc. | 759,000 | $7.55M |
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