Who Owns WESTIN ACQUISITION CORP-RTS (WSTNR)? -- Institutional Holders (2026-06-30)
23 institutions reported holding $594,354 of WESTIN ACQUISITION CORP-RTS (WSTNR) in SEC 13F filings for 2026-06-30. Largest institutional holders: RIVERNORTH CAPITAL MANAGEMENT, LLC ($48,930), TORONTO DOMINION BANK ($47,820), HIGHBRIDGE CAPITAL MANAGEMENT LLC ($47,500), Polar Asset Management Partners Inc. ($47,300), ARISTEIA CAPITAL, L.L.C. ($43,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $48,930 | 300,000 | Hold |
| 2 | TORONTO DOMINION BANK | $47,820 | 278,024 | Hold |
| 3 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $47,500 | 250,000 | Hold |
| 4 | Polar Asset Management Partners Inc. | $47,300 | 275,000 | Added |
| 5 | ARISTEIA CAPITAL, L.L.C. | $43,000 | 250,000 | Hold |
| 6 | WHITEBOX ADVISORS LLC | $43,000 | 250,000 | Hold |
| 7 | Clear Street Group Inc. | $39,016 | 226,838 | Trimmed |
| 8 | MANGROVE PARTNERS IM, LLC | $34,400 | 200,000 | Hold |
| 9 | Shaolin Capital Management LLC | $32,886 | 191,200 | Trimmed |
| 10 | HEIGHTS CAPITAL MANAGEMENT, INC | $28,291 | 148,899 | Trimmed |
| 11 | GLAZER CAPITAL, LLC | $26,000 | 149,994 | Hold |
| 12 | GABELLI & Co INVESTMENT ADVISERS, INC. | $25,490 | 148,200 | New |
| 13 | GABELLI FUNDS LLC | $23,082 | 134,200 | New |
| 14 | BOOTHBAY FUND MANAGEMENT, LLC | $21,500 | 125,000 | Hold |
| 15 | WOLVERINE ASSET MANAGEMENT LLC | $18,778 | 109,175 | Trimmed |
| 16 | Hudson Bay Capital Management LP | $18,379 | 99,320 | Trimmed |
| 17 | Radcliffe Capital Management, L.P. | $18,100 | 100,000 | Hold |
| 18 | BERKLEY W R CORP | $10,714 | 62,290 | Trimmed |
| 19 | Virtu Financial LLC | $7,000 | 35,080 | Added |
| 20 | Harraden Circle Investments, LLC | $6,803 | 39,554 | Hold |
| 21 | Centiva Capital, LP | $6,365 | 33,500 | Hold |
| 22 | UBS Group AG | $0 | 1 | New |
| 23 | Crossingbridge Advisors, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30