Pioneer Acquisition I Corp
PACH- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002040381
No open-market purchases or sales by Pioneer Acquisition I Corp insiders were filed in the last 90 days; 67 institutions reported holding it in 13F filings for Q2 2026, worth $230.1M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Pioneer Acquisition I Corp as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 59
- +16 vs. Q3 2025
- Shares held
- 21.7M
- +4.30M (+24.7%) vs. Q3 2025
- Total value
- $218.6M
- +$45.1M (+26.0%) vs. Q3 2025
- New holders
- 17
- 5 more added
- Sold out
- 1
- 10 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting PACH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 67 | $230.1M |
| Q1 2026 | 61 | $226.2M |
| Q4 2025 | 59 | $218.6M |
| Q3 2025 | 44 | $174.3M |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Pioneer Acquisition I Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| D. E. Shaw & Co., Inc. | 1,252,350 | $12.6M | 0.01% | +560,668+81.1% | Added |
| Glazer Capital, LLC | 1,050,650 | $10.6M | 0.28% | 00.0% | Unchanged |
| Linden Advisors LP | 1,000,000 | $10.1M | 0.06% | 00.0% | Unchanged |
| Magnetar Financial LLC | 1,000,000 | $10.1M | 0.10% | +1,000,000 | New |
| CNH Partners LLC | 984,608 | $9.91M | 0.21% | 00.0% | Unchanged |
| Wealthspring Capital LLC | 850,336 | $8.55M | 2.02% | −32,950−3.7% | Reduced |
| Two Sigma Investments, LP | 797,500 | $8.01M | 0.01% | 00.0% | Unchanged |
| MMCAP International Inc. SPC | 750,000 | $7.54M | 0.75% | +750,000 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 650,000 | $6.54M | 0.01% | 00.0% | Unchanged |
| Radcliffe Capital Management, L.P. | 629,247 | $6.32M | 0.34% | +36,772+6.2% | Added |
| Tenor Capital Management Co., L.P. | 600,000 | $6.03M | 0.08% | 00.0% | Unchanged |
| Meteora Capital, LLC | 549,969 | $5.53M | 0.46% | +549,969 | New |
| Verition Fund Management LLC | 544,200 | $5.47M | 0.03% | −5,800−1.1% | Reduced |
| Wolverine Asset Management LLC | 512,506 | $5.15M | 0.07% | −164,702−24.3% | Reduced |
| Alberta Investment Management Corp | 500,000 | $5.03M | 0.03% | +500,000 | New |
| Jain Global LLC | 500,000 | $5.03M | 0.05% | +500,000 | New |
| Shaolin Capital Management LLC | 500,000 | $5.03M | 0.19% | −200,000−28.6% | Reduced |
| Polar Asset Management Partners Inc. | 500,000 | $5.03M | 0.10% | 00.0% | Unchanged |
| Vivaldi Asset Management, LLC | 500,000 | $5.03M | 0.30% | 00.0% | Unchanged |
| Picton Mahoney Asset Management | 500,000 | $5.03M | 0.05% | 00.0% | Unchanged |
| Karpus Management, Inc. | 481,088 | $4.83M | 0.15% | +321,088+200.7% | Added |
| Mangrove Partners | 450,000 | $4.52M | 0.37% | 00.0% | Unchanged |
| Omers Administration Corp | 440,000 | $4.43M | 0.03% | +440,000 | New |
| Westchester Capital Management, LLC | 408,612 | $4.11M | 0.19% | +344,000+532.4% | Added |
| Periscope Capital Inc. | 400,000 | $4.02M | 0.78% | −75,000−15.8% | Reduced |
| Aristeia Capital LLC | 400,000 | $4.02M | 0.11% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 400,000 | $4.02M | 0.02% | 00.0% | Unchanged |
| Mint Tower Capital Management B.V. | 400,000 | $4.02M | 0.51% | +400,000 | New |
| Clear Street Group Inc. | 318,445 | $3.20M | 0.02% | −404,615−56.0% | Reduced |
| BNP Paribas Arbitrage, SA | 308,414 | $3.10M | 0.00% | 00.0% | Unchanged |
| Whitebox Advisors LLC | 300,000 | $3.02M | 0.05% | 00.0% | Unchanged |
| Millennium Management LLC | 269,500 | $2.71M | 0.00% | −15,501−5.4% | Reduced |
| UBS Oconnor LLC | 250,000 | $2.52M | 0.07% | 00.0% | Unchanged |
| Ghisallo Capital Management LLC | 250,000 | $2.52M | 0.11% | 00.0% | Unchanged |
| Moore Capital Management, LP | 250,000 | $2.51M | 0.05% | 00.0% | Unchanged |
| Rivernorth Capital Management, LLC | 249,758 | $2.51M | 0.12% | +66,665+36.4% | Added |
| Hudson Bay Capital Management LP | 246,000 | $2.47M | 0.01% | 00.0% | Unchanged |
| CSS LLC | 212,388 | $2.13M | 0.12% | 00.0% | Unchanged |
| Context Capital Management, LLC | 150,000 | $1.51M | 0.04% | 00.0% | Unchanged |
| TIG Advisors, LLC | 150,000 | $1.51M | 0.07% | +150,000 | New |
| Berkley W R Corp | 148,726 | $1.49M | 0.08% | 00.0% | Unchanged |
| Toronto Dominion Bank | 145,000 | $1.46M | 0.00% | −223,629−60.7% | Reduced |
| DLD Asset Management, LP | 127,737 | $1.28M | 0.13% | +127,737 | New |
| Dakota Wealth Management | 109,000 | $1.10M | 0.02% | 00.0% | Unchanged |
| Lineage Point Capital LP | 106,805 | $1.07M | 0.41% | +106,805 | New |
| Heights Capital Management, Inc | 100,000 | $1.01M | 0.38% | +100,000 | New |
| Governors Lane LP | 100,000 | $1.00M | 0.09% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 83,391 | $838.1K | 0.02% | 00.0% | Unchanged |
| Gritstone Asset Management LLC | 69,324 | $696.7K | 0.66% | 00.0% | Unchanged |
| Mizuho Securities USA LLC | 50,924 | $513.8K | 0.01% | −250,378−83.1% | Reduced |
| Centiva Capital, LP | 50,000 | $503.0K | 0.03% | 00.0% | Unchanged |
| Virtu Financial LLC | 34,201 | $344.0K | 0.01% | −226,925−86.9% | Reduced |
| Stoic Point Capital Management LLC | 33,775 | $339.4K | 0.29% | +33,775 | New |
| Abc Arbitrage SA | 25,000 | $251.3K | 0.02% | +25,000 | New |
| L1 Global Manager Pty Ltd | 24,400 | $245.2K | 0.16% | +24,400 | New |
| PenderFund Capital Management Ltd. | 17,400 | $175.0K | 0.03% | +17,400 | New |
| Deltec Asset Management LLC | 10,000 | $100.5K | 0.02% | 00.0% | Unchanged |
| FNY Investment Advisers, LLC | 1,000 | $10.0K | 0.00% | +1,000 | New |
| Morgan Stanley | 67 | $673 | 0.00% | +67 | New |
| StoneX Group Inc. | 0 | $0 | 0.00% | −155,000−100.0% | Sold out |
| Atw Spac Management LLC | – | – | – | – | Not filed |