Best Spac I AcquisitionBSAAU
13F holders, Q3 2025 (September 30)13holders −21
1new positions
9sold out
1famous investor
$10.16avg. 13F price*
At the end of Q3 2025, 13 institutions reported holding Best Spac I Acquisition Corp. (BSAAU) in their 13F filings, down 21 from Q2 2025. 1 opened new positions and 9 sold out. The largest holders were Heights Capital Management, Inc. ($1.8M), Atw Spac Management LLC ($1.7M) and Boothbay Fund Management, LLC ($1.7M). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Best Spac I Acquisition Corp.
- CUSIP
- G1069P137
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $222K |
| Exits | 9 | $8.7M |
All 13F filers, Q2 2025 → Q3 2025: 25,966 shares bought and 888,636 shares sold, net −862,670 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 13 holders
| Heights Capital Management, Inc. | 0.59% | No change | 175,000 | $1.8M |
| Atw Spac Management LLC | 2.16% | No change | 162,500 | $1.7M |
| Boothbay Fund Management, LLC | 0.04% | No change | 162,500 | $1.7M |
| Clear Street Group Inc. | 0.01% | — | 118,606 | $1.2M |
| ADAR1 Capital Management, LLC | 0.10% | No change | 100,000 | $1.0M |
| Aristeia Capital, L.L.C. | 0.05% | No change | 95,000 | $965K |
| Meteora Capital, LLC | 0.09% | Reduce -21.3% | 78,154 | $794K |
| Citadel Advisors | 0.00% | Reduce -0.4% | 55,736 | $566K |
| Westchester Capital Management, LLC | 0.03% | No change | 50,000 | $508K |
| HRT Financial LP | 0.00% | Add +16.5% | 29,019 | $294K |
| Susquehanna International Group, LLP | 0.00% | New | 21,849 | $222K |
| PenderFund Capital Management Ltd. | 0.07% | No change | 18,500 | $188K |
| UBS Group AG | 0.00% | Reduce -88.7% | 476 | $5K |
"% of holder's portfolio" is BSAAU's weight in each manager's 13F, not the share of Best Spac I Acquisition Corp. the manager owns.