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, Q3 2025
Institutional positions in ACM Research, Inc. as of Sep 30, 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
- 260
- +18 vs. Q2 2025
- Shares held
- 41.8M
- +4.38M (+11.7%) vs. Q2 2025
- Total value
- $1.63B
- +$665.8M (+68.7%) vs. Q2 2025
- New holders
- 63
- 82 more added
- Sold out
- 45
- 78 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding ACM Research, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7,587,539 | $296.9M | 0.01% | +3,481,447+84.8% | Added |
| Vanguard Group Inc | 4,846,413 | $189.6M | 0.00% | +549,971+12.8% | Added |
| LSV Asset Management | 2,504,305 | $98.0M | 0.22% | +2,059,405+462.9% | Added |
| Triata Capital Ltd | 2,003,225 | $78.4M | 9.15% | +413,000+26.0% | Added |
| State Street Corp | 1,990,254 | $77.9M | 0.00% | +735,555+58.6% | Added |
| Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf) | 1,485,687 | $58.1M | 2.97% | +299,943+25.3% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 1,359,969 | $53.2M | 0.12% | −942,382−40.9% | Reduced |
| Geode Capital Management, LLC | 1,323,502 | $51.8M | 0.00% | +85,471+6.9% | Added |
| Federated Hermes, Inc. | 1,061,236 | $41.5M | 0.07% | −360,452−25.4% | Reduced |
| Broad Bay Capital Management, LP | 1,012,414 | $39.6M | 4.94% | +33,761+3.4% | Added |
| Morgan Stanley | 876,966 | $34.3M | 0.00% | +325,186+58.9% | Added |
| Goldman Sachs Group Inc | 673,241 | $26.3M | 0.00% | −100,231−13.0% | Reduced |
| UBS Group AG | 588,540 | $23.0M | 0.00% | +201,130+51.9% | Added |
| Northern Trust Corp | 587,108 | $23.0M | 0.00% | +24,081+4.3% | Added |
| Steamboat Capital Partners, LLC | 525,000 | $20.5M | 5.35% | −54,975−9.5% | Reduced |
| Cederberg Capital Ltd | 496,500 | $19.4M | 5.55% | +496,500 | New |
| Charles Schwab Investment Management Inc | 437,158 | $17.1M | 0.00% | +26,574+6.5% | Added |
| Raiffeisen Bank International AG | 435,000 | $16.8M | 0.22% | 00.0% | Unchanged |
| Portolan Capital Management, LLC | 405,860 | $15.9M | 0.86% | +405,860 | New |
| Citadel Advisors LLC | 394,969 | $15.5M | 0.01% | +190,945+93.6% | Added |
| Bank of New York Mellon Corp | 366,214 | $14.3M | 0.00% | +142,070+63.4% | Added |
| MY.Alpha Management HK Advisors Ltd | 360,237 | $14.1M | 9.13% | +360,237 | New |
| AQR Capital Management LLC | 356,741 | $14.0M | 0.01% | −56,630−13.7% | Reduced |
| Principal Financial Group Inc | 336,993 | $13.2M | 0.01% | +269,094+396.3% | Added |
| Ameriprise Financial Inc | 316,504 | $12.4M | 0.00% | +117,894+59.4% | Added |
| Renaissance Technologies LLC | 299,925 | $11.7M | 0.02% | +262,925+710.6% | Added |
| Congress Asset Management Co | 281,923 | $11.0M | 0.07% | +84,747+43.0% | Added |
| Yiheng Capital Management, L.P. | 280,201 | $11.0M | 3.63% | 00.0% | Unchanged |
| FMR LLC | 248,171 | $9.71M | 0.00% | +64,978+35.5% | Added |
| Invesco Ltd. | 246,502 | $9.65M | 0.00% | −579,487−70.2% | Reduced |
| Oasis Management Co Ltd. | 233,988 | $9.16M | 1.58% | −142,773−37.9% | Reduced |
| Millennium Management LLC | 210,338 | $8.23M | 0.01% | −308,011−59.4% | Reduced |
| Public Sector Pension Investment Board | 205,115 | $8.03M | 0.03% | +205,115 | New |
| Matthews International Capital Management LLC | 203,511 | $7.96M | 1.85% | −17,784−8.0% | Reduced |
| Boothbay Fund Management, LLC | 195,120 | $7.64M | 0.20% | +39,665+25.5% | Added |
| Two Sigma Investments, LP | 194,338 | $7.60M | 0.01% | +194,338 | New |
| Seldon Capital LP | 193,242 | $7.56M | 2.66% | +193,242 | New |
| Wexford Capital LP | 185,942 | $7.28M | 2.19% | +79,499+74.7% | Added |
| Bank of America Corp | 185,834 | $7.27M | 0.00% | −56,244−23.2% | Reduced |
| Kerrisdale Advisers, LLC | 176,581 | $6.91M | 3.58% | −109,916−38.4% | Reduced |
| Jane Street Group, LLC | 175,317 | $6.86M | 0.01% | −84,703−32.6% | Reduced |
| Deutsche Bank AG | 170,074 | $6.65M | 0.00% | −68,676−28.8% | Reduced |
| Nuveen, LLC | 162,788 | $6.37M | 0.00% | −551,523−77.2% | Reduced |
| RPg Family Wealth Advisory, LLC | 156,670 | $6.13M | 1.34% | +61,249+64.2% | Added |
| American Century Companies Inc | 150,522 | $5.89M | 0.00% | +12,618+9.1% | Added |
| Rhumbline Advisers | 147,794 | $5.78M | 0.00% | +66,329+81.4% | Added |
| Nomura Holdings Inc | 144,492 | $5.65M | 0.03% | +144,492 | New |
| Legal & General Group Plc | 138,293 | $5.41M | 0.00% | +80,177+138.0% | Added |
| Group One Trading, L.P. | 135,856 | $5.32M | 0.16% | +107,402+377.5% | Added |
| Dodge & Cox | 122,892 | $4.81M | 0.00% | +41,800+51.5% | Added |
| Walleye Trading LLC | 122,533 | $4.79M | 0.08% | +121,227+9,282.3% | Added |
| Susquehanna International Group, LLP | 120,606 | $4.72M | 0.01% | −129,768−51.8% | Reduced |
| D. E. Shaw & Co., Inc. | 113,584 | $4.44M | 0.00% | +113,584 | New |
| Marshall Wace, LLP | 113,530 | $4.44M | 0.00% | −120,677−51.5% | Reduced |
| Russell Investments Group, Ltd. | 111,101 | $4.35M | 0.00% | −9,021−7.5% | Reduced |
| Thompson Siegel & Walmsley LLC | 109,700 | $4.29M | 0.07% | +31,700+40.6% | Added |
| Segall Bryant & Hamill, LLC | 107,980 | $4.23M | 0.06% | +9,662+9.8% | Added |
| Swiss National Bank | 102,600 | $4.01M | 0.00% | +2,100+2.1% | Added |
| BNP Paribas Arbitrage, SA | 98,257 | $3.84M | 0.00% | +82,931+541.1% | Added |
| Barclays PLC | 96,663 | $3.78M | 0.00% | −36,774−27.6% | Reduced |
| LPL Financial LLC | 93,190 | $3.65M | 0.00% | −42,736−31.4% | Reduced |
| Victory Capital Management Inc | 86,672 | $3.39M | 0.00% | +71,236+461.5% | Added |
| UBS Oconnor LLC | 79,396 | $3.11M | 0.09% | −12,725−13.8% | Reduced |
| Kendall Capital Management | 76,771 | $3.00M | 0.68% | +22,716+42.0% | Added |
| First Trust Advisors LP | 76,243 | $2.98M | 0.00% | −5,844−7.1% | Reduced |
| Toroso Investments, LLC | 75,913 | $2.97M | 0.01% | +50,440+198.0% | Added |
| Simplex Trading, LLC | 75,018 | $2.94M | 0.06% | −20,692−21.6% | Reduced |
| Tudor Investment Corp Et Al | 74,474 | $2.91M | 0.02% | −166,268−69.1% | Reduced |
| UBS Asset Management Americas Inc | 72,667 | $2.84M | 0.00% | −469,070−86.6% | Reduced |
| Janus Henderson Group PLC | 71,894 | $2.81M | 0.00% | −7,496−9.4% | Reduced |
| Discovery Capital Management, LLC | 66,600 | $2.61M | 0.14% | +66,600 | New |
| Wells Fargo & Company | 66,248 | $2.59M | 0.00% | −131,001−66.4% | Reduced |
| State Board of Administration of Florida Retirement System | 64,027 | $2.51M | 0.00% | 00.0% | Unchanged |
| Algert Global LLC | 58,794 | $2.30M | 0.04% | −177,768−75.1% | Reduced |
| Mackenzie Financial Corp | 54,337 | $2.13M | 0.00% | −8,657−13.7% | Reduced |
| Prudential Financial Inc | 52,745 | $2.06M | 0.00% | +52,745 | New |
| Hussman Strategic Advisors, Inc. | 52,500 | $2.05M | 0.44% | +52,500 | New |
| Campbell & CO Investment Adviser LLC | 51,822 | $2.03M | 0.15% | +51,822 | New |
| Pictet Asset Management Holding SA | 50,893 | $1.99M | 0.00% | +47+0.1% | Added |
| Gilder Gagnon Howe & Co LLC | 50,367 | $1.97M | 0.02% | +729+1.5% | Added |
| Alliancebernstein L.P. | 49,967 | $1.96M | 0.00% | +1,396+2.9% | Added |
| Teacher Retirement System of Texas | 48,619 | $1.90M | 0.01% | +779+1.6% | Added |
| California State Teachers Retirement System | 47,715 | $1.87M | 0.00% | +20.0% | Added |
| ExodusPoint Capital Management, LP | 47,411 | $1.86M | 0.03% | +18,341+63.1% | Added |
| Royal Bank of Canada | 46,071 | $1.80M | 0.00% | −74,096−61.7% | Reduced |
| Price T Rowe Associates Inc | 45,368 | $1.78M | 0.00% | +3,277+7.8% | Added |
| Great West Life Assurance Co | 45,036 | $1.74M | 0.00% | +39,258+679.4% | Added |
| Raymond James Financial Inc | 42,943 | $1.68M | 0.00% | −9,195−17.6% | Reduced |
| Thrivent Financial for Lutherans | 37,984 | $1.49M | 0.00% | +37,984 | New |
| Cerity Partners LLC | 37,743 | $1.48M | 0.00% | +1,882+5.2% | Added |
| HRT Financial LP | 36,379 | $1.42M | 0.01% | −169,329−82.3% | Reduced |
| Ieq Capital, LLC | 35,805 | $1.40M | 0.00% | −16,390−31.4% | Reduced |
| Two Sigma Advisers, LP | 35,400 | $1.39M | 0.00% | +35,400 | New |
| Allspring Global Investments Holdings, LLC | 31,326 | $1.37M | 0.00% | −604−1.9% | Reduced |
| NorthCrest Asset Manangement, LLC | 33,570 | $1.36M | 0.03% | +7,298+27.8% | Added |
| Franklin Resources Inc | 33,245 | $1.30M | 0.00% | +1,332+4.2% | Added |
| Illumine Investment Management, LLC | 31,380 | $1.23M | 0.87% | −468−1.5% | Reduced |
| MetLife Investment Management | 30,677 | $1.20M | 0.01% | 00.0% | Unchanged |
| CWM Advisors, LLC | 29,496 | $1.15M | 0.11% | +29,496 | New |
| Virtus ETF Advisers LLC | 28,954 | $1.13M | 0.62% | −2,353−7.5% | Reduced |