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PACHU

Pioneer Acquisition I Corp Units
PACHU

69 hedge funds and large institutions have $242M invested in Pioneer Acquisition I Corp Units in 2025 Q2 according to their latest regulatory filings, with 69 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

109.83% more ownership

Funds ownership: 0% → 109.83% (+110%)

Holders
69
Holders Change
+69
Holders Change %
–
% of All Funds
0.91%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.01%
New
69
Increased
–
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
AA
AQR Arbitrage
Connecticut
+$12.9M
2
GCL
Glazer Capital LLC
New York
+$10.6M
3
MF
Magnetar Financial
Illinois
+$10M
4
Two Sigma Investments
Two Sigma Investments
New York
+$7.98M
5
LA
Linden Advisors
New York
+$7.51M

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
AA
1
AQR Arbitrage
Connecticut
$12.9M +$12.9M +1,293,025 New
GCL
2
Glazer Capital LLC
New York
$10.6M +$10.6M +1,061,027 New
MF
3
Magnetar Financial
Illinois
$10M +$10M +1,000,000 New
Two Sigma Investments
4
Two Sigma Investments
New York
$7.98M +$7.98M +797,500 New
LA
5
Linden Advisors
New York
$7.51M +$7.51M +750,000 New
LP
6
LMR Partners
United Kingdom
$7.5M +$7.51M +750,000 New
MI
7
MMCAP International
Cayman Islands
$7.5M +$7.51M +750,000 New
HIM
8
HGC Investment Management
Ontario, Canada
$7.43M +$7.44M +743,077 New
Toronto Dominion Bank
9
Toronto Dominion Bank
Ontario, Canada
$7M +$7.01M +700,000 New
WC
10
Wealthspring Capital
New York
$6.67M +$6.67M +666,245 New
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
11
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$6.51M +$6.5M +650,000 New
SCM
12
Shaolin Capital Management
Florida
$6.5M +$6.5M +650,000 New
TCM
13
Tenor Capital Management
New York
$6M +$6M +600,000 New
CS
14
Clear Street
New York
$5.98M +$5.98M +597,955 New
MSU
15
Mizuho Securities USA
New York
$5.93M +$5.96M +595,062 New
PC
16
Periscope Capital
Ontario, Canada
$5.66M +$5.66M +566,006 New
AIMCA
17
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$5M +$5M +500,000 New
Verition Fund Management
18
Verition Fund Management
Connecticut
$5M +$5M +500,000 New
WAM
19
Weiss Asset Management
Massachusetts
$5M +$5M +500,000 New
FTCM
20
First Trust Capital Management
Illinois
$5M +$5M +500,000 New
PAMP
21
Polar Asset Management Partners
Ontario, Canada
$5M +$5M +500,000 New
RCM
22
Radcliffe Capital Management
Pennsylvania
$5M +$5M +500,000 New
SC
23
Sculptor Capital
New York
$5M +$5M +500,000 New
PMAM
24
Picton Mahoney Asset Management
Ontario, Canada
$5M +$5M +500,000 New
HCM
25
Highbridge Capital Management
New York
$5M +$5M +499,200 New
1
2 3

PACHU Hedge Fund Activity: Q2 2025 in Review

69 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Pioneer Acquisition I Corp Units (PACHU) for Q2 2025, worth a combined $242M.

Buyers outnumbered sellers: 69 funds opened new PACHU positions and 0 closed out — a net gain of 69 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was AQR Arbitrage, opening a new position worth an estimated $12.9M.

  • 69 institutional investors held Pioneer Acquisition I Corp Units (PACHU) as of Q2 2025, up from 0 in Q1 2025.
  • Funds reported $242M of Pioneer Acquisition I Corp Units stock for Q2 2025.
  • 69 funds opened new Pioneer Acquisition I Corp Units positions in Q2 2025 and 0 closed out, a net change of +69 holders.
  • The largest Pioneer Acquisition I Corp Units buyer in Q2 2025 was AQR Arbitrage, an estimated $12.9M added.

Based on aggregated 13F filings for Q2 2025.