Who Owns KEYSTONE ACQUISITION CORP (KEYYW)? -- Institutional Holders (2026-06-30)
22 institutions reported holding $5.4M of KEYSTONE ACQUISITION CORP (KEYYW) in SEC 13F filings for 2026-06-30. Largest institutional holders: BOOTHBAY FUND MANAGEMENT, LLC ($2.5M), Harraden Circle Investments, LLC ($399,460), GLAZER CAPITAL, LLC ($294,000), Linden Advisors LP ($292,765), METEORA CAPITAL, LLC ($244,888). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | BOOTHBAY FUND MANAGEMENT, LLC | $2.5M | 256,329 | New |
| 2 | Harraden Circle Investments, LLC | $399,460 | 908,070 | New |
| 3 | GLAZER CAPITAL, LLC | $294,000 | 668,221 | New |
| 4 | Linden Advisors LP | $292,765 | 696,893 | New |
| 5 | METEORA CAPITAL, LLC | $244,888 | 556,690 | New |
| 6 | Polar Asset Management Partners Inc. | $241,945 | 550,000 | New |
| 7 | SONA ASSET MANAGEMENT (US) LLC | $198,000 | 450,000 | New |
| 8 | TENOR CAPITAL MANAGEMENT Co., L.P. | $164,963 | 375,000 | New |
| 9 | Verition Fund Management LLC | $144,416 | 323,729 | New |
| 10 | Hudson Bay Capital Management LP | $133,830 | 300,000 | New |
| 11 | Clear Street Group Inc. | $119,938 | 272,649 | New |
| 12 | Periscope Capital Inc. | $109,931 | 249,900 | New |
| 13 | Shaolin Capital Management LLC | $105,246 | 239,250 | New |
| 14 | CSS LLC/IL | $105,081 | 238,875 | New |
| 15 | Centiva Capital, LP | $94,796 | 212,500 | New |
| 16 | K2 PRINCIPAL FUND, L.P. | $66,000 | 150,000 | New |
| 17 | Saba Capital Management, L.P. | $65,992 | 149,999 | New |
| 18 | Mint Tower Capital Management B.V. | $44,000 | 100,000 | New |
| 19 | WOLVERINE ASSET MANAGEMENT LLC | $41,965 | 95,397 | New |
| 20 | Governors Lane LP | $39,895 | 90,691 | New |
| 21 | TORONTO DOMINION BANK | $7,814 | 17,760 | New |
| 22 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $215 | 0 | New |
Source: SEC Form 13F filings · as of 2026-06-30