Headlands Technologies’s ACM Research ACMR Stock Holding History

Headlands Technologies’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	$306K	Buy	+7,773	New	+$413K	0.03%	492
2025 Q3	–	Sell	-4,395	Closed	-$114K	–	604
2025 Q2	$114K	Buy	+4,395	New	+$98.8K	0.01%	601
2024 Q3	–	Sell	-615	Closed	-$14.2K	–	1150
2024 Q2	$14.2K	Sell	615 -13,843	-96%	-$350K	﹤0.01%	945
2024 Q1	$421K	Buy	14,458 +11,062	+326%	+$253K	0.1%	221
2023 Q4	$66.4K	Buy	+3,396	New	+$59.4K	0.02%	474
2023 Q3	–	Sell	-4,073	Closed	-$53.3K	–	893
2023 Q2	$53.3K	Buy	+4,073	New	+$42.9K	0.02%	466

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

Headlands Technologies's ACMR Position: Q1 2026 in Review

Headlands Technologies opened a new position in ACM Research (ACMR) in Q1 2026: 7,773 shares worth $306K. The stake represents 0.03% of the portfolio and ranks #492 among its holdings. This is a return to the name: Headlands Technologies previously reported a position in ACMR as recently as Q2 2025.

Headlands Technologies first reported a position in ACMR in Q2 2023 and has held it in 6 quarters since. The position peaked at $421K in Q1 2024. 300 funds tracked by Wall St. Rank hold ACMR as of Q1 2026.

Headlands Technologies held 7,773 shares of ACM Research worth $306K as of Q1 2026.
ACM Research was a new Headlands Technologies position in Q1 2026.
ACM Research made up 0.03% of Headlands Technologies's portfolio in Q1 2026, its #492 holding.
Headlands Technologies first reported a position in ACM Research in Q2 2023 and has held it in 6 quarters since.
Headlands Technologies's ACM Research position peaked at $421K in Q1 2024.
300 funds tracked by Wall St. Rank held ACM Research as of Q1 2026.

Based on Headlands Technologies's 13F filing for Q1 2026, filed 13 May 2026.