# BEST SPAC I ACQUISITION CORP (BSAAU)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/BSAAU/

- Reporting holders: 3
- Reported value: $721.6K
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [CITADEL ADVISORS LLC](https://holderbook.com/funds/1423053-citadel-advisors-llc/) | $694.0K | 50,000 | 0.0% | 5 |
| [Clear Street Group Inc.](https://holderbook.com/funds/1881567-clear-street-group-inc/) | $25.3K | 2,107 | 0.0% | 4 |
| [UBS Group AG](https://holderbook.com/funds/1610520-ubs-group-ag/) | $2.3K | 217 | 0.0% | 5 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 3 | $721.6K |
| Q1 2026 | 5 | $3.3M |
| Q4 2025 | 5 | $3.2M |
| Q3 2025 | 13 | $10.8M |
| Q2 2025 | 34 | $48.8M |