Pioneer Acquisition I Corp Units
PACHU
29 hedge funds and large institutions have $74.7M invested in Pioneer Acquisition I Corp Units in 2025 Q3 according to their latest regulatory filings, with 1 funds opening new positions, 5 increasing their positions, 8 reducing their positions, and 41 closing their positions.
38% less repeat investments, than reductions
Existing positions increased: 5 | Existing positions reduced: 8
58% less funds holding
Funds holding: 69 → 29 (-40)
69% less capital invested
Capital invested by funds: $242M → $74.7M (-$167M)
76.04% less ownership
Funds ownership: 109.83% → 33.79% (-76%)
98% less first-time investments, than exits
New positions opened: 1 | Existing positions closed: 41
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
WCMNY
Westchester Capital Management (New York)
Valhalla,
New York
|
+$6.02M |
| 2 |
JG
Jain Global
New York
|
+$1.15M |
| 3 |
Parallax Volatility Advisers
San Francisco,
California
|
+$238K |
| 4 |
RC
Rangeley Capital
New Canaan,
Connecticut
|
+$222K |
| 5 |
PCM
PenderFund Capital Management
Vancouver,
British Columbia, Canada
|
+$124K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AA
AQR Arbitrage
Greenwich,
Connecticut
|
-$12.9M |
| 2 |
GCL
Glazer Capital LLC
New York
|
-$10.6M |
| 3 |
Two Sigma Investments
New York
|
-$7.98M |
| 4 |
LA
Linden Advisors
New York
|
-$7.51M |
| 5 |
WC
Wealthspring Capital
West Harrison,
New York
|
-$6.67M |
PACHU Hedge Fund Activity: Q3 2025 in Review
29 of the 7,641 institutional investors tracked by Wall St. Rank reported a position in Pioneer Acquisition I Corp Units (PACHU) for Q3 2025, worth a combined $74.7M — down 69% from $242M a quarter earlier.
Sellers outnumbered buyers: 41 funds closed out of PACHU and 1 opened new positions — a net loss of 40 holders — while 8 trimmed existing stakes and 5 added.
The largest buyer was Westchester Capital Management (New York), adding an estimated $6.02M. The largest seller was AQR Arbitrage, exiting entirely with an estimated $12.9M sold.
- 29 institutional investors held Pioneer Acquisition I Corp Units (PACHU) as of Q3 2025, down from 69 in Q2 2025.
- Funds reported $74.7M of Pioneer Acquisition I Corp Units stock for Q3 2025, down 69% quarter-over-quarter.
- 1 fund opened new Pioneer Acquisition I Corp Units positions in Q3 2025 and 41 closed out, a net change of -40 holders.
- The largest Pioneer Acquisition I Corp Units buyer in Q3 2025 was Westchester Capital Management (New York), an estimated $6.02M added.
- The largest Pioneer Acquisition I Corp Units seller in Q3 2025 was AQR Arbitrage, an estimated $12.9M sold.
Based on aggregated 13F filings for Q3 2025.