Acm Research, Inc. ACMR
We take great care to ensure that the data presented and summarized in this overview for ACM Research, Inc. is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Top Institutions Holding ACMR
View all-
Vanguard Group Inc Valley Forge, PA4.85MShares$154 Million0.0% of portfolio
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Black Rock Inc. New York, NY4.07MShares$129 Million0.0% of portfolio
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Lsv Asset Management Chicago, IL2.5MShares$79.5 Million0.22% of portfolio
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Triata Capital LTD Hong Kong, K32MShares$63.6 Million9.15% of portfolio
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State Street Corp Boston, MA1.99MShares$63.2 Million0.0% of portfolio
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Southeastern Asset Management Inc Memphis, TN1.49MShares$47.1 Million3.16% of portfolio
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Mitsubishi Ufj Trust & Banking Corp Tokyo, M01.36MShares$43.2 Million0.12% of portfolio
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Geode Capital Management, LLC Boston, MA1.32MShares$42 Million0.0% of portfolio
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Panview Asian Equity Master Fund Central, K31.17MShares$37 Million5.52% of portfolio
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Federated Hermes, Inc. Pittsburgh, PA1.06MShares$33.7 Million0.08% of portfolio
Latest Institutional Activity in ACMR
Top Purchases
Top Sells
About ACMR
ACM Research, Inc., together with its subsidiaries, develops, manufactures, and sells single-wafer wet cleaning equipment for enhancing the manufacturing process and yield for integrated chips worldwide. It offers space alternated phase shift technology for flat and patterned wafer surfaces, which employs alternating phases of megasonic waves to deliver megasonic energy in a uniform manner on a microscopic level; timely energized bubble oscillation technology for patterned wafer surfaces at advanced process nodes, which provides cleaning for 2D and 3D patterned wafers; Tahoe technology for delivering cleaning performance using less sulfuric acid and hydrogen peroxide; and electro-chemical plating technology for advanced metal plating. The company markets and sells its products under the Ultra C brand name through direct sales force and third-party representatives. ACM Research, Inc. was incorporated in 1998 and is headquartered in Fremont, California.
Insider Transactions at ACMR
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Nov 13
2025
|
Lisa Feng |
SELL
Open market or private sale
|
Direct |
15,000
-23.08%
|
$495,000
$33.77 P/Share
|
|
Nov 13
2025
|
Lisa Feng |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+18.75%
|
$75,000
$5.6 P/Share
|
|
Nov 12
2025
|
Haiping Dun |
SELL
Bona fide gift
|
Direct |
755,090
-100.0%
|
-
|
|
Nov 12
2025
|
Lisa Feng |
SELL
Open market or private sale
|
Direct |
15,000
-23.08%
|
$480,000
$32.76 P/Share
|
|
Nov 12
2025
|
Lisa Feng |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+18.75%
|
$75,000
$5.6 P/Share
|
|
Sep 18
2025
|
Sotheara Cheav |
SELL
Open market or private sale
|
Direct |
10,000
-9.09%
|
$350,000
$35.0 P/Share
|
|
Sep 18
2025
|
Sotheara Cheav |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+8.33%
|
$130,000
$13.89 P/Share
|
|
Sep 18
2025
|
Jian Wang |
SELL
Open market or private sale
|
Direct |
30,000
-10.59%
|
$1,050,000
$35.0 P/Share
|
|
Sep 18
2025
|
Jian Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
30,000
+9.58%
|
$150,000
$5.6 P/Share
|
|
Sep 17
2025
|
Tracy Liu |
SELL
Open market or private sale
|
Direct |
15,000
-11.93%
|
$495,000
$33.0 P/Share
|
|
Sep 17
2025
|
Tracy Liu |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+10.66%
|
$15,000
$1.0 P/Share
|
|
Sep 08
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
130,000
+13.94%
|
$130,000
$1.0 P/Share
|
|
Sep 04
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
60,000
-8.19%
|
$1,560,000
$26.44 P/Share
|
|
Sep 04
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
60,000
+7.57%
|
$60,000
$1.0 P/Share
|
|
Sep 03
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
70,000
-4.74%
|
$1,890,000
$27.02 P/Share
|
|
Sep 03
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
70,000
+8.61%
|
$70,000
$1.0 P/Share
|
|
Aug 25
2025
|
Jian Wang |
SELL
Open market or private sale
|
Direct |
30,000
-10.59%
|
$960,000
$32.0 P/Share
|
|
Aug 25
2025
|
Jian Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
30,000
+9.58%
|
$150,000
$5.6 P/Share
|
|
Aug 22
2025
|
Jian Wang |
SELL
Open market or private sale
|
Direct |
30,000
-10.59%
|
$900,000
$30.0 P/Share
|
|
Aug 22
2025
|
Jian Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
30,000
+9.58%
|
$150,000
$5.6 P/Share
|
Last 12 Months Summary
| Exercise of conversion of derivative security | 894K shares |
|---|
| Open market or private sale | 923K shares |
|---|---|
| Payment of exercise price or tax liability | 4.53K shares |
| Bona fide gift | 755K shares |