ACM Research, Inc. ACMR

Set alert

44.43 USD -0.90 (-1.99%)

At closeNov 4, 2026, 7:24 PM EST

44.64 +0.21 +0.47%

After hours · Nov 4, 7:24 PM ET

43.38 Day range 47.30

29.67 52-week range 126.89

Held by insiders 3.86%

Held by institutions 77.79%

Float held by institutions 80.92%

Institutions 513

Top institutional holders
Holder	% held	Shares	Value	Reported
Blackrock Inc.	13.39%	8,660,842	384.11M	Jun 29, 2026
Vanguard Portfolio Management LLC	5.18%	3,349,436	148.55M	Jun 29, 2026
Vanguard Capital Management LLC	3.81%	2,462,745	109.22M	Jun 29, 2026
Capital World Investors	3.71%	2,398,036	106.35M	Jun 29, 2026
State Street Corporation	3.38%	2,188,254	97.05M	Jun 29, 2026
Geode Capital Management, LLC	2.30%	1,487,797	65.98M	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	155.30M	Sep 29, 2026
SmallCap World Fund Inc	4.56%	2,945,654	130.64M	Sep 29, 2026
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	2.71%	1,750,345	77.63M	Jun 29, 2026
iShares Trust-iShares Russell 2000 ETF	2.28%	1,471,657	65.27M	Sep 29, 2026
VANGUARD WORLD FUND-Vanguard Information Technology Index Fund	2.01%	1,300,443	57.67M	Aug 30, 2026
Invesco Exchange-Traded Fund Trust-Invesco Semiconductors ETF	1.36%	880,204	39.04M	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