David Shaw’s ACM Research ACMR Stock Holding History

David Shaw’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 Q2	$4.25M	Buy	+33,500	New	+$2.37M	﹤0.01%	2532
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 $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

VARA

Value Aligned Research Advisors Princeton, New Jersey $40.1B AUM 376.19% 1-Year Est. Return

WFM Asia Road Town, Tortola, British Virgin Islands $663M AUM 15.46% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

David Shaw's ACMR Position: Q2 2026 in Review

David Shaw opened a new position in ACM Research (ACMR) in Q2 2026: 33,500 shares worth $4.25M. The stake represents ﹤0.01% of the portfolio and ranks #2532 among its holdings. This is a return to the name: David Shaw previously reported a position in ACMR as recently as Q4 2025.

David Shaw first reported a position in ACMR in Q3 2019 and has held it in 12 quarters since. The position peaked at $5.65M in Q1 2024. 374 funds tracked by Wall St. Rank hold ACMR as of Q2 2026.

David Shaw held 33,500 shares of ACM Research worth $4.25M as of Q2 2026.
ACM Research was a new David Shaw position in Q2 2026.
ACM Research made up ﹤0.01% of David Shaw's portfolio in Q2 2026, its #2532 holding.
David Shaw first reported a position in ACM Research in Q3 2019 and has held it in 12 quarters since.
David Shaw's ACM Research position peaked at $5.65M in Q1 2024.
374 funds tracked by Wall St. Rank held ACM Research as of Q2 2026.

Based on D.E. Shaw & Co's 13F filing for Q2 2026, filed 14 Aug 2026.