Pioneer Acquisition I Corp Units
PACHU
15 hedge funds and large institutions have $32.1M invested in Pioneer Acquisition I Corp Units in 2025 Q4 according to their latest regulatory filings, with 1 funds opening new positions, 1 increasing their positions, 3 reducing their positions, and 15 closing their positions.
19.49% less ownership
Funds ownership: 33.79% → 14.3% (-19%)
48% less funds holding
Funds holding: 29 → 15 (-14)
57% less capital invested
Capital invested by funds: $74.7M → $32.1M (-$42.6M)
67% less repeat investments, than reductions
Existing positions increased: 1 | Existing positions reduced: 3
93% less first-time investments, than exits
New positions opened: 1 | Existing positions closed: 15
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CS
Clear Street
New York
|
+$142K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
MF
Magnetar Financial
Evanston,
Illinois
|
-$10.1M |
| 2 |
MI
MMCAP International
Grand Cayman,
Cayman Islands
|
-$7.54M |
| 3 |
AIMCA
Alberta Investment Management Corp (AIMCo)
Edmonton,
Alberta, Canada
|
-$5.03M |
| 4 |
JG
Jain Global
New York
|
-$5.03M |
| 5 |
OAC
OMERS Administration Corp
Toronto,
Ontario, Canada
|
-$4.42M |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
RCM
26
Rivernorth Capital Management
West Palm Beach,
Florida
| – | -$670K | -66,669 | Closed |
|
27
Parallax Volatility Advisers
San Francisco,
California
| – | -$590K | -58,744 | Closed |
|
|
CF
28
Cantor Fitzgerald
New York
| – | -$371K | -36,894 | Closed |
|
|
PCM
29
PenderFund Capital Management
Vancouver,
British Columbia, Canada
| – | -$175K | -17,400 | Closed |
|
|
WAM
30
Wolverine Asset Management
Chicago,
Illinois
| – | -$10 | -1 | Closed |
|
PACHU Hedge Fund Activity: Q4 2025 in Review
15 of the 8,228 institutional investors tracked by Wall St. Rank reported a position in Pioneer Acquisition I Corp Units (PACHU) for Q4 2025, worth a combined $32.1M — down 57% from $74.7M a quarter earlier.
Sellers outnumbered buyers: 15 funds closed out of PACHU and 1 opened new positions — a net loss of 14 holders — while 3 trimmed existing stakes and 1 added.
The largest buyer was Clear Street, adding an estimated $142K. The largest seller was Magnetar Financial, exiting entirely with an estimated $10.1M sold.
- 15 institutional investors held Pioneer Acquisition I Corp Units (PACHU) as of Q4 2025, down from 29 in Q3 2025.
- Funds reported $32.1M of Pioneer Acquisition I Corp Units stock for Q4 2025, down 57% quarter-over-quarter.
- 1 fund opened new Pioneer Acquisition I Corp Units positions in Q4 2025 and 15 closed out, a net change of -14 holders.
- The largest Pioneer Acquisition I Corp Units buyer in Q4 2025 was Clear Street, an estimated $142K added.
- The largest Pioneer Acquisition I Corp Units seller in Q4 2025 was Magnetar Financial, an estimated $10.1M sold.
Based on aggregated 13F filings for Q4 2025.