ACM Research, Inc. ACMR

Set alert

45.33 USD +1.18 (+2.67%)

At closeNov 3, 2026, 6:43 PM EST

46.50 +1.17 +2.57%

After hours · Nov 3, 6:43 PM ET

44.23 Day range 46.38

28.46 52-week range 127.19

Held by insiders 3.86%

Held by institutions 77.75%

Float held by institutions 80.88%

Institutions 511

Top institutional holders
Holder	% held	Shares	Value	Reported
Blackrock Inc.	13.39%	8,660,842	392.60M	Jun 29, 2026
Vanguard Portfolio Management LLC	5.18%	3,349,436	151.83M	Jun 29, 2026
Vanguard Capital Management LLC	3.81%	2,462,745	111.64M	Jun 29, 2026
Capital World Investors	3.71%	2,398,036	108.70M	Jun 29, 2026
State Street Corporation	3.38%	2,188,254	99.19M	Jun 29, 2026
Geode Capital Management, LLC	2.30%	1,487,797	67.44M	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	158.74M	Sep 29, 2026
SmallCap World Fund Inc	4.56%	2,945,654	133.53M	Sep 29, 2026
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	2.71%	1,750,345	79.34M	Jun 29, 2026
iShares Trust-iShares Russell 2000 ETF	2.28%	1,471,657	66.71M	Sep 29, 2026
VANGUARD WORLD FUND-Vanguard Information Technology Index Fund	2.01%	1,300,443	58.95M	Aug 30, 2026
Invesco Exchange-Traded Fund Trust-Invesco Semiconductors ETF	1.36%	880,204	39.90M	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