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ACM Research (ACMR) Institutional Ownership

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$80.92 +5.31 (+7.02%)
Closing price 09/30/2026 04:00 PM Eastern
Extended Trading
$81.98 +1.05 (+1.30%)
As of 09/30/2026 07:51 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for ACM Research (NASDAQ:ACMR)

Current
Institutional Ownership
Percentage
66.75%
Number of
Institutional Buyers
(last 12 months)
165
Total
Institutional Inflows
(last 12 months)
$674.93M
Number of
Institutional Sellers
(last 12 months)
94
Total
Institutional Outflows
(last 12 months)
$342.27M
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ACMR Institutional Buying and Selling by Quarter

ACM Research Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026Sequoia Financial Advisors LLC2,616$332K0.0%N/A0.004%
9/9/2026Engineers Gate Manager LP2,505$318K0.0%-94.2%0.004%
9/9/2026Integrated Wealth Concepts LLC2,727$346K0.0%N/A0.004%
9/9/2026Steamboat Capital Partners LLC182,773$23.19M5.0%-18.2%0.283%
9/8/2026Arizona State Retirement System14,238$1.81M0.0%-3.8%0.022%
9/8/2026Nykredit A S1,365$173K0.0%N/A0.002%
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al4,900$622K0.0%N/A0.008%
8/22/2026Odyssean LLC19,180$2.43M0.4%+26.7%0.030%
8/22/2026Raiffeisen Bank International AG360,000$42.80M0.5%-5.3%0.557%
8/21/2026AXQ Capital LP4,089$519K0.1%N/A0.006%
8/21/2026Nykredit A S1,365$173K0.0%N/A0.002%
8/21/2026Beacon Financial Advisory LLC13,850$1.76M0.3%-1.5%0.021%
8/20/2026Teza Capital Management LLC3,754$476K0.9%N/A0.006%
8/20/2026Kerrisdale Advisers LLC62,570$7.94M2.0%-72.0%0.097%
8/20/2026RPg Family Wealth Advisory LLC98,166$12.46M2.0%+7.8%0.152%
8/19/2026SPX Gestao de Recursos Ltda13,815$1.75M0.2%N/A0.021%
8/19/2026Wellington Management Group LLP174,987$22.20M0.0%N/A0.271%
8/11/2026Telligent Fund LP4,000$508K0.4%N/A0.007%
8/6/2026Bank of New York Mellon Corp326,284$41.40M0.0%N/A0.533%
7/10/2026Handelsbanken Fonder AB20,900$2.65M0.0%+31.4%0.034%
7/9/2026Key Client Fiduciary Advisors LLC1,985$252K0.1%N/A0.003%
7/9/2026Contravisory Investment Management Inc.5,216$662K0.1%+2.3%0.009%
7/8/2026FNY Investment Advisers LLC7,000$888K0.3%N/A0.011%
7/8/2026Palouse Capital Management Inc.2,210$280K0.2%-31.3%0.004%
7/7/2026GAMMA Investing LLC1,440$183K0.0%+14.5%0.002%
7/7/2026Harbor Investment Advisory LLC738$94K0.0%+195.2%0.001%
7/7/2026CoreCap Advisors LLC5,410$686K0.0%-25.0%0.009%
6/3/2026NewEdge Advisors LLC1,087$43K0.0%+381.0%0.002%
5/22/2026Segall Bryant & Hamill LLC87,964$3.46M0.0%-17.4%0.144%
5/19/2026Bank of America Corp DE402,412$15.84M0.0%+33.4%0.657%
5/19/2026Janus Henderson Group PLC1,085,634$42.70M0.0%+0.2%1.773%
5/19/2026Cim LLC14,749$580K0.1%-8.9%0.024%
5/18/2026California State Teachers Retirement System63,131$2.48M0.0%+32.4%0.103%
5/18/2026Royal Bank of Canada4,118$162K0.0%+26.0%0.007%
5/16/2026The Manufacturers Life Insurance Company24,785$975K0.0%-0.7%0.040%
5/16/2026Quantinno Capital Management LP53,925$2.12M0.0%-2.5%0.088%
5/16/2026Lazard Asset Management LLC43,034$1.69M0.0%N/A0.070%
5/15/2026Cypress Capital Group15,820$623K0.1%N/A0.026%
5/14/2026Healthcare of Ontario Pension Plan Trust Fund57,148$2.25M0.0%N/A0.093%
5/14/2026Renaissance Technologies LLC122,600$4.82M0.0%-1.5%0.200%
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5/14/2026Public Employees Retirement System of Ohio26,055$1.03M0.0%N/A0.043%
5/14/2026Inceptionr LLC6,203$244K0.1%N/A0.010%
5/14/2026Sei Investments Co.85,005$3.35M0.0%+45.4%0.139%
5/13/2026Cetera Investment Advisers8,796$346K0.0%+22.6%0.014%
5/13/2026First Trust Advisors LP373,987$14.72M0.0%+73.7%0.611%
5/8/2026Summit Global Investments8,592$338K0.0%N/A0.014%
5/7/2026WCM Investment Management LLC1,860,874$70.58M0.2%+16,878.8%3.040%
5/7/2026Dimensional Fund Advisors LP719,023$28.29M0.0%+207.6%1.174%
5/7/2026KBC Group NV1,698$67K0.0%-25.4%0.003%
5/7/2026Swiss National Bank106,600$4.20M0.0%+1.5%0.174%
5/6/2026Bessemer Group Inc.55,933$2.20M0.0%-33.2%0.091%
5/6/2026Allspring Global Investments Holdings LLC14,815$599K0.0%-39.3%0.024%
5/5/2026Bank of New York Mellon Corp314,609$12.38M0.0%-3.2%0.514%
5/5/2026Illinois Municipal Retirement Fund31,532$1.24M0.0%+30.5%0.052%
5/5/2026Harel Insurance Investments & Financial Services Ltd.2,040$80K0.0%N/A0.003%
5/4/2026Empirical Financial Services LLC d.b.a. Empirical Wealth Management23,427$922K0.0%-10.3%0.038%
5/4/2026Illumine Investment Management LLC21,916$862K0.7%-21.8%0.036%
5/4/2026Principal Financial Group Inc.340,724$13.41M0.0%-11.1%0.557%
5/4/2026First Growth Capital LLC5,598$226K0.2%+5.4%0.009%
5/4/2026Chicago Partners Investment Group LLC4,576$180K0.0%-7.9%0.007%
5/4/2026Matthews International Capital Management LLC138,815$5.46M2.2%-25.9%0.227%
5/1/2026Fifth Third Bancorp11,414$449K0.0%+11,546.9%0.019%
4/27/2026New York State Teachers Retirement System33,740$1.33M0.0%-2.9%0.056%
4/27/2026Capelight Capital Asset Management LP30,000$1.18M0.8%-40.0%0.049%
4/27/2026Y Intercept Hong Kong Ltd76,212$3.00M0.1%N/A0.126%
4/25/2026Strs Ohio15,500$610K0.0%+131.3%0.026%
4/24/2026Palouse Capital Management Inc.3,218$127K0.1%-13.4%0.005%
4/23/2026Inspire Investing LLC62,712$2.47M0.2%+16.3%0.103%
4/22/2026Sterling Capital Management LLC1,703$67K0.0%-41.8%0.003%
4/21/2026Louisiana State Employees Retirement System23,600$929K0.0%N/A0.039%
4/20/2026Blue Trust Inc.5,150$203K0.0%-10.2%0.008%
4/16/2026SG Americas Securities LLC21,351$840K0.0%-90.7%0.035%
3/13/2026Fund Advisors of America Inc FL8,604$339K0.3%N/A0.014%
3/10/2026MY.Alpha Management HK Advisors Ltd105,605$4.17M2.2%-70.7%0.174%
3/4/2026OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC35,958$1.42M0.2%-54.7%0.060%
2/19/2026Invesco Ltd.1,342,136$52.95M0.0%+444.5%2.242%
2/18/2026Cederberg Capital Ltd693,900$27.37M8.8%+39.8%1.159%
2/18/2026Vident Advisory LLC9,712$383K0.0%N/A0.016%
2/18/2026State of Tennessee Department of Treasury15,757$622K0.0%N/A0.026%
2/18/2026Mackenzie Financial Corp56,681$2.27M0.0%+4.3%0.095%
2/18/2026Cim LLC16,184$638K0.1%-5.5%0.027%
2/18/2026Yiheng Capital Management L.P.174,447$6.88M1.4%-37.7%0.291%
2/18/2026VARCOV Co.7,758$306K0.1%N/A0.013%
2/18/2026Odyssean LLC15,137$597K0.4%N/A0.025%
2/18/2026Millennium Management LLC23,500$927K0.0%-88.8%0.039%
2/18/2026Man Group plc5,307$209K0.0%N/A0.009%
2/18/2026Inspire Investing LLC53,932$2.13M0.2%+82.8%0.090%
2/18/2026Janus Henderson Group PLC1,082,982$42.74M0.0%+1,406.4%1.809%
2/18/2026Boothbay Fund Management LLC119,094$4.70M0.1%-39.0%0.199%
2/17/2026Freestone Grove Partners LP10,153$401K0.0%N/A0.017%
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2/17/2026Guggenheim Capital LLC54,571$2.15M0.0%+318.9%0.091%
2/17/2026Seldon Capital LP10,000$394K0.1%-94.8%0.017%
2/17/2026PDT Partners LLC6,241$246K0.0%-37.2%0.010%
2/17/2026AQR Capital Management LLC343,603$13.56M0.0%-3.7%0.574%
2/17/2026Cetera Investment Advisers7,175$283K0.0%-11.3%0.012%
2/17/2026Amundi9,833$388K0.0%N/A0.016%
2/17/2026Nearwater Capital Markets Ltd350,800$13.84M0.2%N/A0.586%
2/17/2026Price T Rowe Associates Inc. MD47,349$1.87M0.0%+4.4%0.079%
2/17/2026Broad Bay Capital Management LP652,214$25.73M2.7%-35.6%1.090%
2/17/2026Steamboat Capital Partners LLC504,161$19.89M5.5%-4.0%0.842%


ACMR Institutional Ownership - Frequently Asked Questions

During the previous two years, 304 institutional investors and hedge funds held shares of ACM Research. The most heavily invested institutionals were Vanguard Group Inc. ($196.15M), LSV Asset Management ($93.91M), State Street Corp ($77.25M), Triata Capital Ltd ($76.14M), WCM Investment Management LLC ($70.58M), Morgan Stanley ($54.93M), and Geode Capital Management LLC ($52.99M).Learn more on ACM Research's institutional investors.

66.75% of ACM Research's stock is owned by institutional investors. Learn more on ACMR's institutional investor holdings.

Of the 261 institutional investors that purchased ACM Research's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: LSV Asset Management ($2.50M), Mitsubishi UFJ Trust & Banking Corp ($2.06M), WCM Investment Management LLC ($1.85M), Triata Capital Ltd ($1.78M), Kerrisdale Advisers LLC ($1.74M), Federated Hermes Inc. ($1.42M), and Panview Capital Ltd ($1.37M).

Institutional investors have bought a total of 15,911,511 shares in the last 24 months. This purchase volume represents approximately $674.93M in transactions.

Of the 94 institutional investors that sold ACM Research's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Mitsubishi UFJ Trust & Banking Corp ($1.47M), Federated Hermes Inc. ($1.40M), Invesco Ltd. ($579.49K), Millennium Management LLC ($486.55K), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($469.07K), Broad Bay Capital Management LP ($360.20K), and Goldman Sachs Group Inc. ($311.65K).

Institutional investors have sold a total of 8,115,868 shares in the last 24 months. This volume of shares sold represents approximately $342.27M in transactions.


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Institutional ownership data for NASDAQ:ACMR is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.
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