7 institutions reported holding $15.8M of PIONEER ACQUISITION I CORP (PACH) in SEC 13F filings for 2026-06-30. Largest institutional holders: Wealthspring Capital LLC ($7.9M), COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS ($4.1M), MIZUHO SECURITIES USA LLC ($1.9M), Context Capital Management, LLC ($1.5M), ABC ARBITRAGE SA ($255,750). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Wealthspring Capital LLC | $7.9M | 776,258 | Trimmed |
| 2 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $4.1M | 400,000 | Hold |
| 3 | MIZUHO SECURITIES USA LLC | $1.9M | 183,497 | New |
| 4 | Context Capital Management, LLC | $1.5M | 150,000 | Hold |
| 5 | ABC ARBITRAGE SA | $255,750 | 25,000 | Hold |
| 6 | DELTEC ASSET MANAGEMENT LLC | $102,300 | 10,000 | Hold |
| 7 | FNY Investment Advisers, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30