17 institutions reported holding $31.9M of Cayson Acquisition Corp (CAPN) in SEC 13F filings for 2026-06-30. Largest institutional holders: BERKLEY W R CORP ($5.5M), MIZUHO SECURITIES USA LLC ($5.1M), RIVERNORTH CAPITAL MANAGEMENT, LLC ($5.0M), WOLVERINE ASSET MANAGEMENT LLC ($3.1M), Polar Asset Management Partners Inc. ($3.0M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | BERKLEY W R CORP | $5.5M | 497,282 | Hold |
| 2 | MIZUHO SECURITIES USA LLC | $5.1M | 475,900 | Hold |
| 3 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $5.0M | 450,000 | Hold |
| 4 | WOLVERINE ASSET MANAGEMENT LLC | $3.1M | 276,715 | Added |
| 5 | Polar Asset Management Partners Inc. | $3.0M | 275,100 | Added |
| 6 | Shaolin Capital Management LLC | $2.5M | 223,900 | Hold |
| 7 | AQR Arbitrage LLC | $2.0M | 184,373 | Hold |
| 8 | HEIGHTS CAPITAL MANAGEMENT, INC | $1.7M | 149,531 | Trimmed |
| 9 | Clear Street Group Inc. | $1.6M | 141,837 | Hold |
| 10 | GOLDMAN SACHS GROUP INC | $699,870 | 63,394 | Hold |
| 11 | RLH Capital LLC | $622,895 | 56,218 | Trimmed |
| 12 | TORONTO DOMINION BANK | $550,397 | 49,900 | New |
| 13 | Harraden Circle Investments, LLC | $294,071 | 26,661 | Hold |
| 14 | Quarry LP | $160,660 | 14,500 | Hold |
| 15 | BNP PARIBAS FINANCIAL MARKETS | $101,601 | 9,203 | Hold |
| 16 | UBS Group AG | $4,085 | 370 | Hold |
| 17 | MORGAN STANLEY | $718 | 65 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30