ACM Research, Inc. ACMR

Set alert

44.61 USD +5.30 (+13.48%)

At closeNov 6, 2026, 4:00 PM EST

44.61 0.00 0.00%

After hours · Nov 6, 4:00 PM ET

41.30 Day range 44.86

28.46 52-week range 127.19

Held by insiders 3.86%

Held by institutions 77.91%

Float held by institutions 81.05%

Institutions 511

Top institutional holders
Holder	% held	Shares	Value	Reported
Blackrock Inc.	13.39%	8,660,842	386.36M	Jun 29, 2026
Vanguard Portfolio Management LLC	5.18%	3,349,436	149.42M	Jun 29, 2026
Vanguard Capital Management LLC	3.81%	2,462,745	109.86M	Jun 29, 2026
Capital World Investors	3.71%	2,398,036	106.98M	Jun 29, 2026
State Street Corporation	3.38%	2,188,254	97.62M	Jun 29, 2026
Geode Capital Management, LLC	2.30%	1,487,797	66.37M	Jun 29, 2026

Top mutual fund holders
Holder	% held	Shares	Value	Reported
iShares Trust-iShares Core S&P Small-Cap ETF	5.42%	3,501,800	156.22M	Sep 29, 2026
SmallCap World Fund Inc	4.56%	2,945,654	131.41M	Sep 29, 2026
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	2.71%	1,750,345	78.08M	Jun 29, 2026
iShares Trust-iShares Russell 2000 ETF	2.28%	1,471,657	65.65M	Sep 29, 2026
VANGUARD WORLD FUND-Vanguard Information Technology Index Fund	2.01%	1,300,443	58.01M	Aug 30, 2026
Invesco Exchange-Traded Fund Trust-Invesco Semiconductors ETF	1.36%	880,204	39.27M	Sep 29, 2026

ACMR insiders
Insider	Relation	Latest transaction	Date	Shares held
CHEAV SOTHEARA	Officer	Sale	Jun 4, 2026	100,002
CHEN FUPING	Officer	Sale	Dec 2, 2025	0
DUN HAIPING	Director	Sale	Aug 17, 2026	855,090
FENG LISA YI LU	Officer	Sale	Mar 5, 2026	50,001
HU CHENMING C	Director	Sale	Mar 16, 2025	100,002
LIU TRACY DONG	Director	Sale	Mar 10, 2026	110,772

Held by funds