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Livermore
Livermore
ZHEN

ACM Research, Inc.

ACMR
Exchange
Nasdaq
Industry
Special Industry Machinery, NEC
SEC CIK
0001680062

In the last 90 days, ACM Research, Inc. insiders filed 0 open-market purchases and 3 sales; 377 institutions reported holding it in 13F filings for Q2 2026, worth $6.11B in total; 3 superinvestors hold it, including Southeastern Asset Management (Longleaf) and Soros Fund Management.

13F holders, Q4 2025

Institutional positions in ACM Research, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
279
+25 vs. Q3 2025
Shares held
45.2M
+3.55M (+8.5%) vs. Q3 2025
Total value
$1.79B
+$154.5M (+9.5%) vs. Q3 2025
New holders
68
96 more added
Sold out
43
85 more reduced

6 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ACMR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 279 institutions
Q1 2021: 94 institutionsQ2 2021: 94 institutionsQ3 2021: 96 institutionsQ4 2021: 100 institutionsQ1 2022: 96 institutionsQ2 2022: 98 institutionsQ3 2022: 117 institutionsQ4 2022: 123 institutionsQ1 2023: 130 institutionsQ2 2023: 122 institutionsQ3 2023: 154 institutionsQ4 2023: 156 institutionsQ1 2024: 200 institutionsQ2 2024: 201 institutionsQ3 2024: 185 institutionsQ4 2024: 183 institutionsQ1 2025: 244 institutionsQ2 2025: 243 institutionsQ3 2025: 260 institutionsQ4 2025: 279 institutionsQ1 2026: 301 institutionsQ2 2026: 377 institutions
Value heldQ4 2025: $1.79B
Q1 2021: $586.5MQ2 2021: $753.5MQ3 2021: $979.6MQ4 2021: $747.5MQ1 2022: $606.7MQ2 2022: $607.2MQ3 2022: $434.9MQ4 2022: $235.2MQ1 2023: $343.6MQ2 2023: $382.7MQ3 2023: $562.8MQ4 2023: $642.8MQ1 2024: $956.1MQ2 2024: $774.0MQ3 2024: $656.9MQ4 2024: $539.4MQ1 2025: $838.6MQ2 2025: $969.2MQ3 2025: $1.63BQ4 2025: $1.79BQ1 2026: $1.74BQ2 2026: $6.11B
Institutions holding ACMR and their total value by quarter
QuarterHoldersValue
Q2 2026377$6.11B
Q1 2026301$1.74B
Q4 2025279$1.79B
Q3 2025260$1.63B
Q2 2025243$969.2M
Q1 2025244$838.6M
Q4 2024183$539.4M
Q3 2024185$656.9M
Q2 2024201$774.0M
Q1 2024200$956.1M
Q4 2023156$642.8M
Q3 2023154$562.8M
Q2 2023122$382.7M
Q1 2023130$343.6M
Q4 2022123$235.2M
Q3 2022117$434.9M
Q2 202298$607.2M
Q1 202296$606.7M
Q4 2021100$747.5M
Q3 202196$979.6M
Q2 202194$753.5M
Q1 202194$586.5M

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding ACM Research, Inc.; share changes are against Q3 2025.

Institutions holding ACMR in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Covestor Ltd4$00.00%−64−94.1%Reduced
Gilpin Wealth Management, LLC3$1190.00%+3New
Meramec Financial Planners, LLC2$1250.00%+2New
Stone House Investment Management, LLC4$1580.00%+4New
Abound Wealth Management4$1580.00%+4New
Rachor Investment Advisory Services, LLC4$1580.00%+4New
Ankerstar Wealth, LLC5$1970.00%+5New
DecisionPoint Financial, LLC5$1980.00%00.0%Unchanged
Keating Financial Advisory Services, Inc.10$3950.00%+10New
Westside Investment Management, Inc.13$5130.00%+13New
MAI Capital Management21$8290.00%+11+110.0%Added
Farmers & Merchants Investments Inc25$9860.00%+25New
SageView Advisory Group, LLC25$9870.00%+25New
Kilter Group LLC34$1.34K0.00%−15−30.6%Reduced
Strategic Advocates LLC35$1.41K0.00%00.0%Unchanged
CIBC Private Wealth Group, LLC45$1.77K0.00%+12+36.4%Added
WealthCollab, LLC51$2.01K0.00%−42−45.2%Reduced
Medallion Wealth Advisors, LLC57$2.25K0.00%00.0%Unchanged
Massmutual Trust Co FSB58$2.29K0.00%+40+222.2%Added
Armstrong Advisory Group, Inc63$2.49K0.00%00.0%Unchanged
Cornerstone Financial Management LLC69$2.72K0.00%+69New
True Wealth Design, LLC70$2.76K0.00%00.0%Unchanged
Parkside Financial Bank & Trust87$3.43K0.00%+36+70.6%Added
Fifth Third Bancorp98$3.87K0.00%+98New
Sunbelt Securities, Inc.120$4.73K0.00%+120New
Quadrant Capital Group LLC130$5.13K0.00%+130New
MCF Advisors LLC131$5.17K0.00%00.0%Unchanged
Umb Bank N A138$5.44K0.00%+138New
Signaturefd, LLC160$6.31K0.00%+41+34.5%Added
Los Angeles Capital Management LLC161$6.64K0.00%+161New
Rothschild Investment LLC178$7.02K0.00%+3+1.7%Added
National Bank of Canada189$7.46K0.00%−71−27.3%Reduced
Parallel Advisors, LLC195$7.69K0.00%−21−9.7%Reduced
Golden State Wealth Management, LLC200$7.89K0.00%00.0%Unchanged
Mark Sheptoff Financial Planning, LLC200$7.89K0.00%+200New
GWM Advisors LLC226$8.92K0.00%00.0%Unchanged
Cedar Mountain Advisors, LLC230$9.07K0.00%+10+4.5%Added
McIlrath & Eck, LLC238$9.39K0.00%00.0%Unchanged
Harbor Investment Advisory, LLC250$9.86K0.00%00.0%Unchanged
Commonwealth Retirement Investments LLC250$9.86K0.00%+250New
Larson Financial Group LLC254$10.0K0.00%+114+81.4%Added
Bullock Wealth Management Group279$11.0K0.01%00.0%Unchanged
Huntington National Bank301$11.9K0.00%00.0%Unchanged
IFP Advisors, Inc315$12.4K0.00%00.0%Unchanged
Allworth Financial LP332$13.1K0.00%−8−2.4%Reduced
Salomon & Ludwin, LLC305$13.7K0.00%+305Added
Pinnacle Wealth Planning Services, Inc.403$15.9K0.00%+403New
Smartleaf Asset Management LLC402$16.2K0.00%+119+42.0%Added
Estate Planners Group, LLC421$16.6K0.01%+421New
Torren Management, LLC424$16.7K0.01%+424New
University of Texas/Texas Am Investment Managment Co449$17.7K0.00%+449New
Pinpoint Asset Management (Singapore) Pte. Ltd.479$18.9K0.00%+478+47,800.0%Added
Advisors Asset Management, Inc.548$21.6K0.00%+468+585.0%Added
Farther Finance Advisors, LLC650$25.6K0.00%+308+90.1%Added
Hantz Financial Services, Inc.660$26.0K0.00%+480+266.7%Added
Leonteq Securities AG700$27.6K0.00%00.0%Unchanged
Jones Financial Companies LLLP783$30.9K0.00%+19+2.5%Added
SBI Securities Co., Ltd.827$32.6K0.00%−5−0.6%Reduced
EverSource Wealth Advisors, LLC945$37.3K0.00%−119−11.2%Reduced
JTC Employer Solutions Trusteee Ltd1,000$39.0K0.00%00.0%Unchanged
Nemes Rush Group LLC1,000$39.5K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.1,006$39.7K0.00%−9,235−90.2%Reduced
GAMMA Investing LLC1,070$42.2K0.00%+299+38.8%Added
The PNC Financial Services Group, Inc.1,379$54.4K0.00%+833+152.6%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,383$55.0K0.00%+927+203.3%Added
Steward Partners Investment Advisory, LLC1,900$75.0K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC1,950$76.9K0.00%+40+2.1%Added
Erste Asset Management GmbH2,250$88.8K0.00%+2,250New
KBC Group NV2,275$90.0K0.00%+1,047+85.3%Added
Global Retirement Partners, LLC2,298$90.7K0.00%+2,295+76,500.0%Added
Truvestments Capital LLC2,313$91.2K0.02%00.0%Unchanged
Penserra Capital Management LLC2,748$108.0K0.00%+2,748New
Tower Research Capital LLC (TRC)2,898$114.3K0.00%+582+25.1%Added
Sterling Capital Management LLC2,927$115.5K0.00%−573−16.4%Reduced
Resona Asset Management Co.,Ltd.2,905$116.1K0.00%−295−9.2%Reduced
Essential Partners LLC3,052$120.4K0.04%00.0%Unchanged
Royal Bank of Canada3,269$128.0K0.00%−42,802−92.9%Reduced
Palouse Capital Management, Inc.3,715$146.6K0.09%−216−5.5%Reduced
Ameritas Investment Partners, Inc.4,223$166.6K0.01%00.0%Unchanged
Ensign Peak Advisors, Inc4,564$180.1K0.00%−6,950−60.4%Reduced
Virtus ETF Advisers LLC4,694$185.2K0.09%−24,260−83.8%Reduced
Contravisory Investment Management, Inc.5,101$201.2K0.04%+5,101New
Man Group plc5,307$209.4K0.00%+5,307New
Ronald Blue Trust, Inc.5,734$226.2K0.00%−263−4.4%Reduced
Violich Capital Management, Inc.5,900$232.8K0.03%00.0%Unchanged
Mutual of America Capital Management LLC6,089$240.2K0.00%+193+3.3%Added
Walleye Capital LLC6,225$245.6K0.00%+6,225New
PDT Partners, LLC6,241$246.2K0.02%−3,700−37.2%Reduced
IFG Advisory, LLC6,250$246.6K0.01%+6,250New
Chicago Partners Investment Group LLC4,969$247.7K0.01%+20.0%Added
TCG Advisory Services, LLC6,439$254.0K0.01%+6,439New
MidWestOne Financial Group, Inc.6,689$263.9K0.03%−499−6.9%Reduced
STRS Ohio6,700$264.3K0.00%00.0%Unchanged
Independent Advisor Alliance7,051$278.2K0.01%+1,254+21.6%Added
Cambridge Investment Research Advisors, Inc.7,176$283.0K0.00%+249+3.6%Added
Cetera Investment Advisers7,175$283.1K0.00%−911−11.3%Reduced
OP Asset Management Ltd7,390$291.5K0.00%+7,390New
VARCOV Co.7,758$306.1K0.12%+7,758New
Maryland State Retirement & Pension System7,764$306.3K0.01%+168+2.2%Added
Mirae Asset Global Investments Co., Ltd.8,288$327.0K0.00%+1,447+21.2%Added