MF
PACHU

Magnetar Financial’s Pioneer Acquisition I Corp Units PACHU Stock Holding History

Magnetar Financial’s Portfolio PACHU Stock Details PACHU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-1,000,000
Closed -$10.1M – 1285
2025
Q3 		$10.1M Hold
1,000,000
– – 0.06% 115
2025
Q2 		$10M Buy
+1,000,000
New +$10M 0.05% 109

Other funds holding PACHU

WCMNY
Westchester Capital Management (New York) Valhalla, New York $2.21B AUM 26.02% 1-Year Est. Return
LP
LMR Partners London, United Kingdom $45.4B AUM 60.68% 1-Year Est. Return
HIM
HGC Investment Management Toronto, Ontario, Canada $451M AUM 8.78% 1-Year Est. Return
Toronto Dominion Bank
Toronto Dominion Bank Toronto, Ontario, Ontario, Canada $69.7B AUM 40.86% 1-Year Est. Return
SCS
Syquant Capital SAS Paris, France $447M AUM 13.04% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
TIM
Timelo Investment Management Aurora, Ontario, Canada $127M AUM 23.73% 1-Year Est. Return
LPC
Lineage Point Capital Palm Beach, Florida $409M AUM
RAM
Readystate Asset Management Chicago, Illinois $2.23B AUM 15% 1-Year Est. Return
YCM
Yakira Capital Management Westport, Connecticut $342M AUM 26.97% 1-Year Est. Return

Magnetar Financial's PACHU Position: Q4 2025 in Review

Magnetar Financial sold out of Pioneer Acquisition I Corp Units (PACHU) in Q4 2025, closing a stake of 1,000,000 shares — an estimated $10.1M sold.

Magnetar Financial first reported a position in PACHU in Q2 2025 and held it in 2 quarters. The position peaked at $10.1M in Q3 2025. 15 funds tracked by Wall St. Rank hold PACHU as of Q4 2025.

  • Magnetar Financial reported no remaining Pioneer Acquisition I Corp Units position as of Q4 2025 after selling out during the quarter.
  • Magnetar Financial sold 1,000,000 Pioneer Acquisition I Corp Units shares in Q4 2025, an estimated $10.1M.
  • Magnetar Financial first reported a position in Pioneer Acquisition I Corp Units in Q2 2025 and held it in 2 quarters.
  • Magnetar Financial's Pioneer Acquisition I Corp Units position peaked at $10.1M in Q3 2025.
  • 15 funds tracked by Wall St. Rank held Pioneer Acquisition I Corp Units as of Q4 2025.

Based on Magnetar Financial's 13F filing for Q4 2025, filed 17 Feb 2026.