Picton Mahoney Asset Management’s GP-Act III Acquisition Corp GPAT Stock Holding History

Picton Mahoney Asset Management’s Portfolio GPAT Stock Details GPAT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$14.9M	Sell	1,375,000 -500,000	-27%	-$5.38M	0.11%	172
2025 Q4	$20M	Hold	1,875,000	–	–	0.16%	115
2025 Q3	$19.9M	Hold	1,875,000	–	–	0.18%	104
2025 Q2	$19.8M	Hold	1,875,000	–	–	0.2%	103
2025 Q1	$19.3M	Hold	1,875,000	–	–	0.33%	57
2024 Q4	$19M	Hold	1,875,000	–	–	0.39%	60
2024 Q3	$18.9M	Buy	+1,875,000	New	+$18.8M	0.62%	37

Other funds holding GPAT

KIM

Karpus Investment Management Pittsford, New York $3.21B AUM 6.83% 1-Year Est. Return

FTCM

First Trust Capital Management Chicago, Illinois $1.9B AUM 58.39% 1-Year Est. Return

AIMCA

Alberta Investment Management Corp (AIMCo) Edmonton, Alberta, Canada $16.7B AUM 23.27% 1-Year Est. Return

AQR Arbitrage Greenwich, Connecticut $6.09B AUM 27.01% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

MMCAP International Grand Cayman, Cayman Islands $1.16B AUM 77.9% 1-Year Est. Return

LMR Partners London, United Kingdom $45.4B AUM 60.68% 1-Year Est. Return

PAMP

Polar Asset Management Partners Toronto, Ontario, Canada $5.01B AUM 35.27% 1-Year Est. Return

Wealthspring Capital West Harrison, New York $448M AUM 8.38% 1-Year Est. Return

WCMNY

Westchester Capital Management (New York) Valhalla, New York $2.21B AUM 26.02% 1-Year Est. Return

Picton Mahoney Asset Management's GPAT Position: Q1 2026 in Review

Picton Mahoney Asset Management reduced its GP-Act III Acquisition Corp (GPAT) stake by 27% in Q1 2026, selling an estimated $5.38M and leaving 1,375,000 shares worth $14.9M. The position accounts for 0.11% of the portfolio, ranked #172.

Picton Mahoney Asset Management first reported a position in GPAT in Q3 2024 and has held it in 7 quarters since. The position peaked at $20M in Q4 2025. 51 funds tracked by Wall St. Rank hold GPAT as of Q1 2026.

Picton Mahoney Asset Management held 1,375,000 shares of GP-Act III Acquisition Corp worth $14.9M as of Q1 2026.
Picton Mahoney Asset Management sold 500,000 GP-Act III Acquisition Corp shares in Q1 2026, an estimated $5.38M.
GP-Act III Acquisition Corp made up 0.11% of Picton Mahoney Asset Management's portfolio in Q1 2026, its #172 holding.
Picton Mahoney Asset Management first reported a position in GP-Act III Acquisition Corp in Q3 2024 and has held it in 7 quarters since.
Picton Mahoney Asset Management's GP-Act III Acquisition Corp position peaked at $20M in Q4 2025.
51 funds tracked by Wall St. Rank held GP-Act III Acquisition Corp as of Q1 2026.

Based on Picton Mahoney Asset Management's 13F filing for Q1 2026, filed 13 May 2026.