XTX Topco’s ACM Research ACMR Stock Holding History

XTX Topco’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	$1.59M	Sell	12,528 -43,938	-78%	-$3.11M	0.02%	1341
2026 Q1	$2.22M	Buy	+56,466	New	+$3M	0.04%	747
2025 Q4	–	Sell	-9,116	Closed	-$357K	–	3262
2025 Q3	$357K	Buy	+9,116	New	+$271K	0.02%	1369
2025 Q2	–	Sell	-48,878	Closed	-$1.14M	–	2283
2025 Q1	$1.14M	Buy	+48,878	New	+$1.12M	0.06%	488
2024 Q4	–	Sell	-34,504	Closed	-$700K	–	2226
2024 Q3	$700K	Buy	+34,504	New	+$661K	0.05%	599
2023 Q2	–	Sell	-37,959	Closed	-$444K	–	1362
2023 Q1	$444K	Sell	37,959 -25,704	-40%	-$297K	0.09%	370
2022 Q4	$491K	Buy	+63,663	New	+$540K	0.1%	306
2022 Q3	–	Sell	-15,942	Closed	-$268K	–	1067
2022 Q2	$268K	Buy	15,942 +4,305	+37%	+$66.3K	0.11%	318
2022 Q1	$241K	Buy	+11,637	New	+$293K	0.11%	350
2021 Q4	–	Sell	-5,898	Closed	-$216K	–	646
2021 Q3	$216K	Buy	+5,898	New	+$180K	0.07%	471

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

XTX Topco's ACMR Position: Q2 2026 in Review

XTX Topco reduced its ACM Research (ACMR) stake by 78% in Q2 2026, selling an estimated $3.11M and leaving 12,528 shares worth $1.59M. The position accounts for 0.02% of the portfolio, ranked #1341.

XTX Topco first reported a position in ACMR in Q3 2021 and has held it in 10 quarters since. The position peaked at $2.22M in Q1 2026. 373 funds tracked by Wall St. Rank hold ACMR as of Q2 2026.

XTX Topco held 12,528 shares of ACM Research worth $1.59M as of Q2 2026.
XTX Topco sold 43,938 ACM Research shares in Q2 2026, an estimated $3.11M.
ACM Research made up 0.02% of XTX Topco's portfolio in Q2 2026, its #1341 holding.
XTX Topco first reported a position in ACM Research in Q3 2021 and has held it in 10 quarters since.
XTX Topco's ACM Research position peaked at $2.22M in Q1 2026.
373 funds tracked by Wall St. Rank held ACM Research as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.