Institutional Ownership
Pioneer Acquisition I Corp
CUSIP G7117W107CL A ORD SHSQ1 2026
13D / 13G Filings
2
Schedule 13D/13G on record
Beneficial Filers
2
Distinct reporting persons
Largest Stake
5.9%
Max % of class reported
Institutional Holders
61
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
2 filings · latest Nov 12, 2025
Top Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Westchester Capital Management, LLC | 1.26M | $12.79M |
| 2 | D. E. Shaw & Co., Inc. | 1.25M | $12.72M |
| 3 | Magnetar Financial LLC | 1.00M | $10.19M |
| 4 | Linden Advisors LP | 1.00M | $10.16M |
| 5 | Aqr Arbitrage LLC | 948.4K | $9.64M |
| 6 | Wealthspring Capital LLC | 841.5K | $8.52M |
| 7 | Two Sigma Investments, LP | 797.5K | $8.08M |
| 8 | Mmcap International Inc. Spc | 750.0K | $7.60M |
| 9 | Wolverine Asset Management LLC | 702.8K | $7.14M |
| 10 | Healthcare Of Ontario Pension Plan Trust Fund | 650.0K | $6.60M |