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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 377 | $6.11B |
| Q1 2026 | 301 | $1.74B |
| Q4 2025 | 279 | $1.79B |
| Q3 2025 | 260 | $1.63B |
| Q2 2025 | 243 | $969.2M |
| Q1 2025 | 244 | $838.6M |
| Q4 2024 | 183 | $539.4M |
| Q3 2024 | 185 | $656.9M |
| Q2 2024 | 201 | $774.0M |
| Q1 2024 | 200 | $956.1M |
| Q4 2023 | 156 | $642.8M |
| Q3 2023 | 154 | $562.8M |
| Q2 2023 | 122 | $382.7M |
| Q1 2023 | 130 | $343.6M |
| Q4 2022 | 123 | $235.2M |
| Q3 2022 | 117 | $434.9M |
| Q2 2022 | 98 | $607.2M |
| Q1 2022 | 96 | $606.7M |
| Q4 2021 | 100 | $747.5M |
| Q3 2021 | 96 | $979.6M |
| Q2 2021 | 94 | $753.5M |
| Q1 2021 | 94 | $586.5M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding ACM Research, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Diametric Capital, LP | 35,029 | $1.38M | 0.37% | +27,423+360.5% | Added |
| New York State Teachers Retirement System | 34,751 | $1.37M | 0.00% | +23,616+212.1% | Added |
| Teacher Retirement System of Texas | 34,144 | $1.35M | 0.00% | −14,475−29.8% | Reduced |
| D. E. Shaw & Co., Inc. | 30,839 | $1.22M | 0.00% | −82,745−72.8% | Reduced |
| James Investment Research Inc | 29,612 | $1.17M | 0.13% | +9,101+44.4% | Added |
| FirstWave Capital Management LLC | 29,491 | $1.16M | 0.69% | +29,491 | New |
| Nomura Asset Management International Inc. | 29,400 | $1.16M | 0.00% | +29,400 | New |
| State of Alaska, Department of Revenue | 28,980 | $1.14M | 0.01% | +3,124+12.1% | Added |
| Oakum Bay Capital LLC | 28,798 | $1.14M | 0.59% | +28,798 | New |
| MetLife Investment Management | 28,640 | $1.13M | 0.01% | −2,037−6.6% | Reduced |
| Norges Bank | 28,528 | $1.13M | 0.00% | +28,528 | New |
| Illumine Investment Management, LLC | 28,040 | $1.11M | 0.81% | −3,340−10.6% | Reduced |
| Allspring Global Investments Holdings, LLC | 24,392 | $1.09M | 0.00% | −6,934−22.1% | Reduced |
| Advisory Research Inc | 27,324 | $1.08M | 0.14% | +1,389+5.4% | Added |
| Neuberger Berman Group LLC | 27,076 | $1.08M | 0.00% | −603−2.2% | Reduced |
| Jefferies Financial Group Inc. | 26,727 | $1.05M | 0.01% | +26,727 | New |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 26,124 | $1.03M | 0.02% | +4,876+22.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 25,118 | $990.9K | 0.00% | +254+1.0% | Added |
| Manufacturers Life Insurance Company, The | 24,956 | $984.5K | 0.00% | −1,935−7.2% | Reduced |
| Intech Investment Management LLC | 24,667 | $973.1K | 0.01% | +749+3.1% | Added |
| Louisiana State Employees Retirement System | 24,400 | $962.6K | 0.02% | +24,400 | New |
| Illinois Municipal Retirement Fund | 24,155 | $952.9K | 0.01% | +24,155 | New |
| Millennium Management LLC | 23,500 | $927.1K | 0.00% | −186,838−88.8% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 18,358 | $924.8K | 0.00% | +1,067+6.2% | Added |
| State of Tennessee, Treasury Department | 15,757 | $915.8K | 0.00% | +15,757 | New |
| MML Investors Services, LLC | 22,851 | $901.5K | 0.00% | +217+1.0% | Added |
| Belpointe Asset Management LLC | 22,396 | $883.5K | 0.03% | −2,876−11.4% | Reduced |
| Fideuram Asset Management (Ireland) dac | 30,975 | $864.4K | 0.07% | +30,975 | New |
| Parallax Volatility Advisers, L.P. | 20,937 | $826.0K | 0.03% | −2,881−12.1% | Reduced |
| CWM, LLC | 20,603 | $813.0K | 0.00% | −152−0.7% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 20,287 | $800.3K | 0.00% | +1,686+9.1% | Added |
| Susquehanna International Group, LLP | 20,243 | $798.6K | 0.00% | −100,363−83.2% | Reduced |
| Voya Investment Management LLC | 20,223 | $797.8K | 0.00% | +11,062+120.8% | Added |
| Federated Hermes, Inc. | 19,051 | $751.6K | 0.00% | −1,042,185−98.2% | Reduced |
| Yousif Capital Management, LLC | 14,216 | $727.3K | 0.01% | −2,384−14.4% | Reduced |
| Nkcfo LLC | 18,000 | $710.0K | 0.21% | +18,000 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 17,878 | $705.3K | 0.00% | +9,653+117.4% | Added |
| Vontobel Holding Ltd. | 17,824 | $703.2K | 0.00% | −4,786−21.2% | Reduced |
| Spire Wealth Management | 16,599 | $654.8K | 0.02% | +18+0.1% | Added |
| Cim, LLC | 16,184 | $638.5K | 0.08% | −941−5.5% | Reduced |
| Handelsbanken Fonder AB | 15,900 | $627.0K | 0.00% | +15,900 | New |
| ProShare Advisors LLC | 15,524 | $612.4K | 0.00% | −100−0.6% | Reduced |
| Amalgamated Bank | 15,231 | $601.0K | 0.00% | −94−0.6% | Reduced |
| Odyssean, LLC | 15,137 | $597.2K | 0.43% | +15,137 | New |
| Arizona State Retirement System | 14,835 | $585.2K | 0.00% | −814−5.2% | Reduced |
| Brinker Capital Investments, LLC | 14,423 | $569.0K | 0.00% | −657−4.4% | Reduced |
| Advisor Group Holdings, Inc. | 14,342 | $565.8K | 0.00% | +7,059+96.9% | Added |
| Bailard, Inc. | 14,169 | $559.0K | 0.01% | −2,300−14.0% | Reduced |
| Beacon Financial Advisory LLC | 14,050 | $554.3K | 0.13% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 13,974 | $551.3K | 0.00% | 00.0% | Unchanged |
| Yorktown Management & Research Co Inc | 13,300 | $524.7K | 0.42% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 13,188 | $520.3K | 0.00% | −221−1.6% | Reduced |
| Teachers Retirement System of the State of Kentucky | 13,145 | $518.0K | 0.00% | −1,355−9.3% | Reduced |
| CoreCap Advisors, LLC | 12,628 | $498.2K | 0.02% | −3,575−22.1% | Reduced |
| Oregon Public Employees Retirement Fund | 12,160 | $479.7K | 0.01% | +60+0.5% | Added |
| State of Wisconsin Investment Board | 12,157 | $479.6K | 0.00% | −15,468−56.0% | Reduced |
| Essex Investment Management Co LLC | 11,770 | $464.3K | 0.07% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 11,679 | $458.0K | 0.00% | +10,675+1,063.2% | Added |
| Comerica Bank | 11,492 | $453.4K | 0.00% | −3,221−21.9% | Reduced |
| KLP Kapitalforvaltning AS | 11,300 | $445.8K | 0.00% | +600+5.6% | Added |
| WCM Investment Management, LLC | 10,960 | $440.6K | 0.00% | +10,960 | New |
| Watershed Asset Management, L.L.C. | 10,845 | $427.8K | 0.40% | +10,845 | New |
| Freestone Grove Partners LP | 10,153 | $400.5K | 0.00% | +10,153 | New |
| Prudential PLC | 10,113 | $399.0K | 0.00% | +10,113 | New |
| CAPROCK Group, Inc. | 10,050 | $396.5K | 0.01% | +10,050 | New |
| Seldon Capital LP | 10,000 | $394.5K | 0.14% | −183,242−94.8% | Reduced |
| Amundi | 9,833 | $387.9K | 0.00% | +9,833 | New |
| Nomura Holdings Inc | 9,767 | $385.3K | 0.00% | −134,725−93.2% | Reduced |
| Pictet Asset Management Holding SA | 9,725 | $383.7K | 0.00% | −41,168−80.9% | Reduced |
| Vident Advisory, LLC | 9,712 | $383.1K | 0.00% | +9,712 | New |
| Quest Partners LLC | 9,627 | $379.8K | 0.02% | +1,110+13.0% | Added |
| Pallas Capital Advisors LLC | 9,599 | $378.7K | 0.01% | +8+0.1% | Added |
| First Growth Capital LLC | 5,313 | $375.5K | 0.33% | +5,313 | New |
| Creative Planning | 9,299 | $366.8K | 0.00% | −423−4.4% | Reduced |
| Landscape Capital Management, L.L.C. | 9,191 | $362.6K | 0.02% | +9,191 | New |
| Prelude Capital Management, LLC | 8,883 | $350.4K | 0.03% | +1,827+25.9% | Added |
| Fund Advisors of America Inc | 8,604 | $339.4K | 0.31% | +8,604 | New |
| Standard Life Aberdeen plc | 8,386 | $330.8K | 0.00% | −2,692−24.3% | Reduced |
| Leuthold Group, LLC | 8,362 | $329.9K | 0.04% | +8,362 | New |
| Mirae Asset Global Investments Co., Ltd. | 8,288 | $327.0K | 0.00% | +1,447+21.2% | Added |
| Maryland State Retirement & Pension System | 7,764 | $306.3K | 0.01% | +168+2.2% | Added |
| VARCOV Co. | 7,758 | $306.1K | 0.12% | +7,758 | New |
| OP Asset Management Ltd | 7,390 | $291.5K | 0.00% | +7,390 | New |
| Cetera Investment Advisers | 7,175 | $283.1K | 0.00% | −911−11.3% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 7,176 | $283.0K | 0.00% | +249+3.6% | Added |
| Independent Advisor Alliance | 7,051 | $278.2K | 0.01% | +1,254+21.6% | Added |
| STRS Ohio | 6,700 | $264.3K | 0.00% | 00.0% | Unchanged |
| MidWestOne Financial Group, Inc. | 6,689 | $263.9K | 0.03% | −499−6.9% | Reduced |
| TCG Advisory Services, LLC | 6,439 | $254.0K | 0.01% | +6,439 | New |
| Chicago Partners Investment Group LLC | 4,969 | $247.7K | 0.01% | +20.0% | Added |
| IFG Advisory, LLC | 6,250 | $246.6K | 0.01% | +6,250 | New |
| PDT Partners, LLC | 6,241 | $246.2K | 0.02% | −3,700−37.2% | Reduced |
| Walleye Capital LLC | 6,225 | $245.6K | 0.00% | +6,225 | New |
| Mutual of America Capital Management LLC | 6,089 | $240.2K | 0.00% | +193+3.3% | Added |
| Violich Capital Management, Inc. | 5,900 | $232.8K | 0.03% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 5,734 | $226.2K | 0.00% | −263−4.4% | Reduced |
| Man Group plc | 5,307 | $209.4K | 0.00% | +5,307 | New |
| Contravisory Investment Management, Inc. | 5,101 | $201.2K | 0.04% | +5,101 | New |
| Virtus ETF Advisers LLC | 4,694 | $185.2K | 0.09% | −24,260−83.8% | Reduced |
| Ensign Peak Advisors, Inc | 4,564 | $180.1K | 0.00% | −6,950−60.4% | Reduced |