Picton Mahoney Asset Management’s ACM Research ACMR Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-20,542	Closed	-$804K	–	1200
2025 Q3	$804K	Buy	+20,542	New	+$610K	0.01%	545
2025 Q2	–	Sell	-12,334	Closed	-$288K	–	962
2025 Q1	$288K	Buy	12,334 +9,230	+297%	+$211K	0.01%	384
2024 Q4	$47K	Buy	3,104 +1,236	+66%	+$22.3K	﹤0.01%	399
2024 Q3	$39K	Sell	1,868 -696	-27%	-$13.3K	﹤0.01%	376
2024 Q2	$59K	Buy	+2,564	New	+$64.9K	﹤0.01%	371

Other funds holding ACMR

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Triata Capital Hong Kong $552M AUM 2.89% 1-Year Est. Return

SAM

Southeastern Asset Management Memphis, Tennessee $2.03B AUM 7.06% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Picton Mahoney Asset Management's ACMR Position: Q4 2025 in Review

Picton Mahoney Asset Management sold out of ACM Research (ACMR) in Q4 2025, closing a stake of 20,542 shares — an estimated $804K sold.

Picton Mahoney Asset Management first reported a position in ACMR in Q2 2024 and held it in 5 quarters. The position peaked at $804K in Q3 2025. 277 funds tracked by Wall St. Rank hold ACMR as of Q4 2025.

Picton Mahoney Asset Management reported no remaining ACM Research position as of Q4 2025 after selling out during the quarter.
Picton Mahoney Asset Management sold 20,542 ACM Research shares in Q4 2025, an estimated $804K.
Picton Mahoney Asset Management first reported a position in ACM Research in Q2 2024 and held it in 5 quarters.
Picton Mahoney Asset Management's ACM Research position peaked at $804K in Q3 2025.
277 funds tracked by Wall St. Rank held ACM Research as of Q4 2025.

Based on Picton Mahoney Asset Management's 13F filing for Q4 2025, filed 11 Feb 2026.