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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7,888,480 | $311.2M | 0.01% | +300,941+4.0% | Added |
| Vanguard Group Inc | 4,972,103 | $196.1M | 0.00% | +125,690+2.6% | Added |
| LSV Asset Management | 2,380,521 | $93.9M | 0.20% | −123,784−4.9% | Reduced |
| State Street Corp | 1,958,041 | $77.2M | 0.00% | −32,213−1.6% | Reduced |
| Triata Capital Ltd | 1,929,919 | $76.1M | 9.23% | −73,306−3.7% | Reduced |
| Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf) | 1,680,181 | $66.3M | 2.95% | +194,494+13.1% | Added |
| Morgan Stanley | 1,392,306 | $54.9M | 0.00% | +515,340+58.8% | Added |
| Geode Capital Management, LLC | 1,342,899 | $53.0M | 0.00% | +19,397+1.5% | Added |
| Invesco Ltd. | 1,342,136 | $52.9M | 0.00% | +1,095,634+444.5% | Added |
| Janus Henderson Group PLC | 1,082,982 | $42.7M | 0.02% | +1,011,088+1,406.4% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 829,127 | $32.7M | 0.08% | −530,842−39.0% | Reduced |
| FMR LLC | 803,666 | $31.7M | 0.00% | +555,495+223.8% | Added |
| Tekne Capital Management, LLC | 715,000 | $28.2M | 10.07% | +715,000 | New |
| Cederberg Capital Ltd | 693,900 | $27.4M | 8.89% | +197,400+39.8% | Added |
| Broad Bay Capital Management, LP | 652,214 | $25.7M | 2.94% | −360,200−35.6% | Reduced |
| Northern Trust Corp | 544,059 | $21.5M | 0.00% | −43,049−7.3% | Reduced |
| UBS Group AG | 510,315 | $20.1M | 0.00% | −78,225−13.3% | Reduced |
| Steamboat Capital Partners, LLC | 504,161 | $19.9M | 5.46% | −20,839−4.0% | Reduced |
| Charles Schwab Investment Management Inc | 478,333 | $18.9M | 0.00% | +41,175+9.4% | Added |
| Raiffeisen Bank International AG | 435,000 | $17.5M | 0.23% | 00.0% | Unchanged |
| Penn Capital Management Co Inc | 435,843 | $17.2M | 1.37% | +435,843 | New |
| Principal Financial Group Inc | 383,129 | $15.1M | 0.01% | +46,136+13.7% | Added |
| Goldman Sachs Group Inc | 361,588 | $14.3M | 0.00% | −311,653−46.3% | Reduced |
| Nearwater Capital Markets, Ltd | 350,800 | $13.8M | 0.24% | +350,800 | New |
| AQR Capital Management LLC | 343,603 | $13.6M | 0.01% | −13,138−3.7% | Reduced |
| Wexford Capital LP | 335,003 | $13.2M | 3.40% | +149,061+80.2% | Added |
| Bank of New York Mellon Corp | 324,940 | $12.8M | 0.00% | −41,274−11.3% | Reduced |
| Ameriprise Financial Inc | 313,167 | $12.4M | 0.00% | −3,337−1.1% | Reduced |
| New York State Common Retirement Fund | 303,543 | $12.0M | 0.02% | +287,730+1,819.6% | Added |
| Bank of America Corp | 301,712 | $11.9M | 0.00% | +115,878+62.4% | Added |
| Discovery Capital Management, LLC | 296,200 | $11.7M | 0.63% | +229,600+344.7% | Added |
| Congress Asset Management Co | 289,449 | $11.4M | 0.08% | +7,526+2.7% | Added |
| Portolan Capital Management, LLC | 285,506 | $11.3M | 0.60% | −120,354−29.7% | Reduced |
| Cerity Partners LLC | 268,337 | $10.6M | 0.02% | +230,594+611.0% | Added |
| Kerrisdale Advisers, LLC | 263,482 | $10.4M | 4.90% | +86,901+49.2% | Added |
| Oasis Management Co Ltd. | 233,988 | $9.23M | 1.21% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 233,741 | $9.22M | 0.00% | +233,741 | New |
| SG Americas Securities, LLC | 229,481 | $9.05M | 0.01% | +206,844+913.7% | Added |
| First Trust Advisors LP | 215,323 | $8.49M | 0.01% | +139,080+182.4% | Added |
| JPMorgan Chase & Co | 198,692 | $7.84M | 0.00% | +170,004+592.6% | Added |
| Thompson Siegel & Walmsley LLC | 188,500 | $7.44M | 0.13% | +78,800+71.8% | Added |
| Matthews International Capital Management LLC | 187,250 | $7.39M | 2.24% | −16,261−8.0% | Reduced |
| Public Sector Pension Investment Board | 184,345 | $7.27M | 0.02% | −20,770−10.1% | Reduced |
| Toroso Investments, LLC | 180,976 | $7.14M | 0.03% | +105,063+138.4% | Added |
| Yiheng Capital Management, L.P. | 174,447 | $6.88M | 3.00% | −105,754−37.7% | Reduced |
| Russell Investments Group, Ltd. | 164,308 | $6.48M | 0.01% | +53,207+47.9% | Added |
| American Century Companies Inc | 151,986 | $6.00M | 0.00% | +1,464+1.0% | Added |
| Qube Research & Technologies Ltd | 146,059 | $5.76M | 0.01% | +146,059 | New |
| Citadel Advisors LLC | 143,022 | $5.64M | 0.00% | −251,947−63.8% | Reduced |
| Kennedy Capital Management, Inc. | 139,885 | $5.52M | 0.12% | +139,885 | New |
| Rhumbline Advisers | 138,148 | $5.45M | 0.00% | −9,646−6.5% | Reduced |
| RPg Family Wealth Advisory, LLC | 134,920 | $5.32M | 1.17% | −21,750−13.9% | Reduced |
| Legal & General Group Plc | 134,022 | $5.29M | 0.00% | −4,271−3.1% | Reduced |
| Renaissance Technologies LLC | 124,439 | $4.91M | 0.01% | −175,486−58.5% | Reduced |
| Boothbay Fund Management, LLC | 119,094 | $4.70M | 0.12% | −76,026−39.0% | Reduced |
| BNP Paribas Arbitrage, SA | 113,530 | $4.48M | 0.00% | +15,273+15.5% | Added |
| Dodge & Cox | 112,392 | $4.43M | 0.00% | −10,500−8.5% | Reduced |
| Simplex Trading, LLC | 110,952 | $4.38M | 0.12% | +35,934+47.9% | Added |
| LPL Financial LLC | 110,620 | $4.36M | 0.00% | +17,430+18.7% | Added |
| Nuveen, LLC | 107,362 | $4.24M | 0.00% | −55,426−34.0% | Reduced |
| Group One Trading, L.P. | 107,113 | $4.23M | 0.13% | −28,743−21.2% | Reduced |
| Barclays PLC | 106,904 | $4.22M | 0.00% | +10,241+10.6% | Added |
| Segall Bryant & Hamill, LLC | 106,555 | $4.20M | 0.06% | −1,425−1.3% | Reduced |
| MY.Alpha Management HK Advisors Ltd | 105,605 | $4.17M | 2.23% | −254,632−70.7% | Reduced |
| Swiss National Bank | 105,000 | $4.14M | 0.00% | +2,400+2.3% | Added |
| HRT Financial LP | 98,340 | $3.88M | 0.01% | +61,961+170.3% | Added |
| Walleye Trading LLC | 87,158 | $3.44M | 0.06% | −35,375−28.9% | Reduced |
| UBS Asset Management Americas Inc | 85,916 | $3.39M | 0.00% | +13,249+18.2% | Added |
| Victory Capital Management Inc | 84,771 | $3.34M | 0.00% | −1,901−2.2% | Reduced |
| Kendall Capital Management | 84,221 | $3.32M | 0.70% | +7,450+9.7% | Added |
| Bessemer Group Inc | 83,741 | $3.30M | 0.01% | +83,616+66,892.8% | Added |
| Wells Fargo & Company | 83,557 | $3.30M | 0.00% | +17,309+26.1% | Added |
| Centiva Capital, LP | 81,967 | $3.23M | 0.20% | +81,967 | New |
| Deutsche Bank AG | 73,504 | $2.90M | 0.00% | −96,570−56.8% | Reduced |
| Inspire Advisors, LLC | 71,067 | $2.80M | 0.26% | +71,067 | New |
| Verition Fund Management LLC | 66,652 | $2.63M | 0.01% | +49,252+283.1% | Added |
| Algert Global LLC | 66,474 | $2.62M | 0.04% | +7,680+13.1% | Added |
| State Board of Administration of Florida Retirement System | 64,027 | $2.53M | 0.00% | 00.0% | Unchanged |
| Hussman Strategic Advisors, Inc. | 63,000 | $2.49M | 0.60% | +10,500+20.0% | Added |
| Yong Rong (HK) Asset Management Ltd | 60,000 | $2.37M | 0.72% | +60,000 | New |
| SEI Investments Co | 58,445 | $2.31M | 0.00% | +36,359+164.6% | Added |
| Mackenzie Financial Corp | 56,681 | $2.27M | 0.00% | +2,344+4.3% | Added |
| Alliancebernstein L.P. | 57,015 | $2.25M | 0.00% | +7,048+14.1% | Added |
| Quantinno Capital Management LP | 55,306 | $2.18M | 0.00% | +55,306 | New |
| Guggenheim Capital LLC | 54,571 | $2.15M | 0.02% | +41,544+318.9% | Added |
| Massar Capital Management, LP | 54,135 | $2.14M | 0.42% | +54,135 | New |
| CWM Advisors, LLC | 53,932 | $2.13M | 0.19% | +24,436+82.8% | Added |
| Gilder Gagnon Howe & Co LLC | 50,368 | $1.99M | 0.02% | +10.0% | Added |
| Capelight Capital Asset Management LP | 50,000 | $1.97M | 1.95% | +50,000 | New |
| Prudential Financial Inc | 49,285 | $1.94M | 0.00% | −3,460−6.6% | Reduced |
| Weiss Asset Management LP | 49,170 | $1.94M | 0.03% | +49,170 | New |
| California State Teachers Retirement System | 47,671 | $1.88M | 0.00% | −44−0.1% | Reduced |
| Price T Rowe Associates Inc | 47,349 | $1.87M | 0.00% | +1,981+4.4% | Added |
| Great West Life Assurance Co | 45,036 | $1.78M | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 43,752 | $1.73M | 0.00% | +19,522+80.6% | Added |
| Colony Group, LLC | 42,398 | $1.67M | 0.00% | +42,398 | New |
| Raymond James Financial Inc | 40,231 | $1.59M | 0.00% | −2,712−6.3% | Reduced |
| NorthCrest Asset Manangement, LLC | 33,580 | $1.51M | 0.03% | +100.0% | Added |
| Thrivent Financial for Lutherans | 36,604 | $1.44M | 0.00% | −1,380−3.6% | Reduced |
| UBS Oconnor LLC | 35,958 | $1.42M | 0.04% | −43,438−54.7% | Reduced |