D.E. Shaw & Co’s ACM Research ACMR Stock Holding History

D.E. Shaw & Co’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
2026 Q1	–	Sell	-30,839	Closed	-$1.22M	–	4477
2025 Q4	$1.22M	Sell	30,839 -82,745	-73%	-$3.08M	﹤0.01%	3411
2025 Q3	$4.44M	Buy	+113,584	New	+$3.37M	﹤0.01%	2324
2025 Q2	–	Sell	-108,550	Closed	-$2.53M	–	4313
2025 Q1	$2.53M	Buy	+108,550	New	+$2.48M	﹤0.01%	2429
2024 Q2	–	Sell	-193,801	Closed	-$4.9M	–	4442
2024 Q1	$5.65M	Buy	+193,801	New	+$4.44M	﹤0.01%	1800
2023 Q4	–	Sell	-158,321	Closed	-$2.87M	–	4281
2023 Q3	$2.87M	Sell	158,321 -77,552	-33%	-$1.15M	﹤0.01%	2287
2023 Q2	$3.09M	Sell	235,873 -81,682	-26%	-$860K	﹤0.01%	2275
2023 Q1	$3.72M	Buy	317,555 +160,309	+102%	+$1.85M	﹤0.01%	2200
2022 Q4	$1.21M	Buy	+157,246	New	+$1.33M	﹤0.01%	3307
2021 Q1	–	Sell	-32,880	Closed	-$891K	–	3988
2020 Q4	$891K	Buy	+32,880	New	+$841K	﹤0.01%	3086
2020 Q3	–	Sell	-35,244	Closed	-$1M	–	3780
2020 Q2	$733K	Buy	+35,244	New	+$578K	﹤0.01%	3133
2019 Q4	–	Sell	-56,421	Closed	-$261K	–	3928
2019 Q3	$261K	Buy	+56,421	New	+$296K	﹤0.01%	3522

Other funds holding ACMR

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

WCM Investment Management Laguna Beach, California $43.8B AUM 42.28% 1-Year Est. Return

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

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

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

VARA

Value Aligned Research Advisors Princeton, New Jersey $20.7B AUM 292.88% 1-Year Est. Return

PCP

Polunin Capital Partners London, United Kingdom $407M AUM 55.12% 1-Year Est. Return

D.E. Shaw & Co's ACMR Position: Q1 2026 in Review

D.E. Shaw & Co sold out of ACM Research (ACMR) in Q1 2026, closing a stake of 30,839 shares — an estimated $1.22M sold.

D.E. Shaw & Co first reported a position in ACMR in Q3 2019 and held it in 11 quarters. The position peaked at $5.65M in Q1 2024. 300 funds tracked by Wall St. Rank hold ACMR as of Q1 2026.

D.E. Shaw & Co reported no remaining ACM Research position as of Q1 2026 after selling out during the quarter.
D.E. Shaw & Co sold 30,839 ACM Research shares in Q1 2026, an estimated $1.22M.
D.E. Shaw & Co first reported a position in ACM Research in Q3 2019 and held it in 11 quarters.
D.E. Shaw & Co's ACM Research position peaked at $5.65M in Q1 2024.
300 funds tracked by Wall St. Rank held ACM Research as of Q1 2026.

Based on D.E. Shaw & Co's 13F filing for Q1 2026, filed 15 May 2026.