29 institutions reported holding $5.6M of BEST SPAC I ACQUISITION CORP (BSAA) in SEC 13F filings for 2026-06-30. Largest institutional holders: MIZUHO SECURITIES USA LLC ($5.4M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($167,469), UBS Group AG ($53,178), Clear Street Group Inc. ($4,712), MORGAN STANLEY ($332). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | MIZUHO SECURITIES USA LLC | $5.4M | 533,699 | Hold |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $167,469 | 14,437 | Added |
| 3 | UBS Group AG | $53,178 | 4,480 | Added |
| 4 | Clear Street Group Inc. | $4,712 | 397 | Trimmed |
| 5 | MORGAN STANLEY | $332 | 28 | Trimmed |
| 6 | Hudson Bay Capital Management LP | $0 | 0 | Exited |
| 7 | TORONTO DOMINION BANK | $0 | 0 | Exited |
| 8 | HEIGHTS CAPITAL MANAGEMENT, INC | $0 | 0 | Exited |
| 9 | BERKLEY W R CORP | $0 | 0 | Exited |
| 10 | BNP PARIBAS FINANCIAL MARKETS | $0 | 0 | Exited |
| 11 | AQR Arbitrage LLC | $0 | 0 | Exited |
| 12 | Radcliffe Capital Management, L.P. | $0 | 0 | Exited |
| 13 | MMCAP International Inc. SPC | $0 | 0 | Exited |
| 14 | Karpus Management, Inc. | $0 | 0 | Exited |
| 15 | GLAZER CAPITAL, LLC | $0 | 0 | Exited |
| 16 | Westchester Capital Management, LLC | $0 | 0 | Exited |
| 17 | BOOTHBAY FUND MANAGEMENT, LLC | $0 | 0 | Exited |
| 18 | Mint Tower Capital Management B.V. | $0 | 0 | Exited |
| 19 | Centiva Capital, LP | $0 | 0 | Exited |
| 20 | Shaolin Capital Management LLC | $0 | 0 | Exited |
| 21 | L1 Global Manager Pty Ltd | $0 | 0 | Exited |
| 22 | Quarry LP | $0 | 0 | Exited |
| 23 | RLH Capital LLC | $0 | 0 | Exited |
| 24 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $0 | 0 | Exited |
| 25 | ARISTEIA CAPITAL, L.L.C. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30