BEST SPAC I Acquisition Corp.
Ownership
Ownership Structure
Who owns BEST SPAC I Acquisition Corp. (BSAA)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 59.9% of the shares are freely tradable; institutional investors hold 66.2%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Mizuho Securities USA Inc | 25.83 | 533,699 | +0.0 | 06/30/2026 |
| BNP Paribas Arbitrage, SA | 1.74 | 35,966 | -53.1 | 06/30/2026 |
| Susquehanna International Group, LLP | 0.70 | 14,437 | +3.7 | 06/30/2026 |
| UBS Group AG | 0.22 | 4,480 | +38.4 | 06/30/2026 |
| Clear Street Group Inc | 0.02 | 397 | -99.8 | 06/30/2026 |
| Morgan Stanley - Brokerage Accounts | 0.00 | 28 | -17.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| AQR Corp Abtg IAU1F USD Acc | 0.23 | 4,680 | +0.0 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 29, 2026 | Chen Yun | 10% Owner | Other | 277,000 | – | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 11, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.