19 institutions reported holding $732,921 of Ribbon Acquisition Corp (RIBBR) in SEC 13F filings for 2026-03-31. Largest institutional holders: Harraden Circle Investments, LLC ($150,764), HIGHBRIDGE CAPITAL MANAGEMENT LLC ($81,724), Polar Asset Management Partners Inc. ($70,400), RIVERNORTH CAPITAL MANAGEMENT, LLC ($70,400), Clear Street Group Inc. ($50,827). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Harraden Circle Investments, LLC | $150,764 | 856,615 | Hold |
| 2 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $81,724 | 430,125 | Added |
| 3 | Polar Asset Management Partners Inc. | $70,400 | 400,000 | Hold |
| 4 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $70,400 | 400,000 | Hold |
| 5 | Clear Street Group Inc. | $50,827 | 288,790 | Hold |
| 6 | HGC Investment Management Inc. | $44,000 | 250,000 | Hold |
| 7 | Hudson Bay Capital Management LP | $43,296 | 245,998 | Trimmed |
| 8 | AQR Arbitrage LLC | $32,610 | 185,283 | Trimmed |
| 9 | HEIGHTS CAPITAL MANAGEMENT, INC | $32,334 | 183,715 | Trimmed |
| 10 | GABELLI & Co INVESTMENT ADVISERS, INC. | $31,152 | 177,000 | Hold |
| 11 | WOLVERINE ASSET MANAGEMENT LLC | $30,133 | 171,209 | Hold |
| 12 | GABELLI FUNDS LLC | $26,709 | 151,755 | Hold |
| 13 | WHITEBOX ADVISORS LLC | $22,000 | 125,000 | Hold |
| 14 | BOOTHBAY FUND MANAGEMENT, LLC | $12,288 | 69,819 | Hold |
| 15 | BNP PARIBAS FINANCIAL MARKETS | $10,578 | 60,105 | Hold |
| 16 | TORONTO DOMINION BANK | $8,379 | 47,610 | Hold |
| 17 | Centiva Capital, LP | $7,040 | 40,000 | Hold |
| 18 | BERKLEY W R CORP | $6,287 | 35,724 | Hold |
| 19 | GLAZER CAPITAL, LLC | $2,000 | 11,575 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31