AA
PACH

AQR Arbitrage’s Pioneer Acquisition I Corp PACH Stock Holding History

AQR Arbitrage’s Portfolio PACH Stock Details PACH Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$9.64M Sell
948,381
-36,227
-4% -$366K 0.16% 156
2025
Q4 		$9.91M Hold
984,608
– – 0.21% 139
2025
Q3 		$9.79M Buy
+984,608
New +$9.8M 0.25% 142

Other funds holding PACH

WCMNY
Westchester Capital Management (New York) Valhalla, New York $2.04B AUM 31.03% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return
MF
Magnetar Financial Evanston, Illinois $11B AUM 3.37% 1-Year Est. Return
LA
Linden Advisors New York $19.3B AUM 1.46% 1-Year Est. Return
WC
Wealthspring Capital West Harrison, New York $448M AUM 8.34% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
MI
MMCAP International Grand Cayman, Cayman Islands $1.18B AUM 50.59% 1-Year Est. Return
WAM
Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.66% 1-Year Est. Return
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund Toronto, Ontario, Canada $71.2B AUM 48.86% 1-Year Est. Return

AQR Arbitrage's PACH Position: Q1 2026 in Review

AQR Arbitrage reduced its Pioneer Acquisition I Corp (PACH) stake by 3.7% in Q1 2026, selling an estimated $366K and leaving 948,381 shares worth $9.64M. The position accounts for 0.16% of the portfolio, ranked #156.

AQR Arbitrage first reported a position in PACH in Q3 2025 and has held it in 3 quarters since. The position peaked at $9.91M in Q4 2025. 61 funds tracked by Wall St. Rank hold PACH as of Q1 2026.

  • AQR Arbitrage held 948,381 shares of Pioneer Acquisition I Corp worth $9.64M as of Q1 2026.
  • AQR Arbitrage sold 36,227 Pioneer Acquisition I Corp shares in Q1 2026, an estimated $366K.
  • Pioneer Acquisition I Corp made up 0.16% of AQR Arbitrage's portfolio in Q1 2026, its #156 holding.
  • AQR Arbitrage first reported a position in Pioneer Acquisition I Corp in Q3 2025 and has held it in 3 quarters since.
  • AQR Arbitrage's Pioneer Acquisition I Corp position peaked at $9.91M in Q4 2025.
  • 61 funds tracked by Wall St. Rank held Pioneer Acquisition I Corp as of Q1 2026.

Based on AQR Arbitrage's 13F filing for Q1 2026, filed 15 May 2026.