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, Q2 2026
Institutional positions in ACM Research, Inc. as of Jun 30, 2026. 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
- 377
- +81 vs. Q1 2026
- Shares held
- 48.5M
- +5.22M (+12.1%) vs. Q1 2026
- Total value
- $6.11B
- +$4.41B (+259.7%) vs. Q1 2026
- New holders
- 120
- 126 more added
- Sold out
- 39
- 93 more reduced
5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding ACM Research, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Storebrand Asset Management AS | 80,510 | $10.2M | 0.03% | −99,490−55.3% | Reduced |
| BNP Paribas Arbitrage, SA | 86,340 | $11.0M | 0.01% | +32,801+61.3% | Added |
| Deutsche Bank AG | 90,500 | $11.5M | 0.00% | +10,645+13.3% | Added |
| LPL Financial LLC | 93,288 | $11.8M | 0.00% | +10,250+12.3% | Added |
| RPg Family Wealth Advisory, LLC | 98,166 | $12.5M | 2.08% | +7,136+7.8% | Added |
| American Century Companies Inc | 101,200 | $12.8M | 0.01% | −49,349−32.8% | Reduced |
| Swiss National Bank | 103,600 | $13.1M | 0.01% | −3,000−2.8% | Reduced |
| Thompson Siegel & Walmsley LLC | 105,790 | $13.4M | 0.24% | +4,690+4.6% | Added |
| Horiko Capital Management LLC | 106,628 | $13.5M | 2.38% | +40,628+61.6% | Added |
| Ameriprise Financial Inc | 115,178 | $14.6M | 0.00% | −97,069−45.7% | Reduced |
| Dodge & Cox | 116,392 | $14.8M | 0.01% | −3,500−2.9% | Reduced |
| Bright Valley Capital Ltd | 118,000 | $15.0M | 4.29% | +118,000 | New |
| Legal & General Group Plc | 125,619 | $15.9M | 0.00% | −677−0.5% | Reduced |
| Rhumbline Advisers | 128,979 | $16.4M | 0.01% | −13,032−9.2% | Reduced |
| Matthews International Capital Management LLC | 132,396 | $16.8M | 5.76% | −6,419−4.6% | Reduced |
| Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf) | 139,478 | $17.7M | 0.92% | −643,422−82.2% | Reduced |
| Millennium Management LLC | 140,501 | $17.8M | 0.01% | +74,941+114.3% | Added |
| Franklin Resources Inc | 145,385 | $18.4M | 0.00% | +48,963+50.8% | Added |
| UBS Asset Management Americas Inc | 146,414 | $18.6M | 0.00% | +54,171+58.7% | Added |
| Nuveen, LLC | 148,494 | $18.8M | 0.00% | +36,605+32.7% | Added |
| Group One Trading, L.P. | 157,056 | $19.9M | 0.57% | +65,629+71.8% | Added |
| Nomura Asset Management International Inc. | 169,322 | $21.5M | 0.03% | +152,522+907.9% | Added |
| Wellington Management Group LLP | 174,987 | $22.2M | 0.00% | +174,987 | New |
| Portolan Capital Management, LLC | 177,432 | $22.5M | 0.84% | +94,176+113.1% | Added |
| Steamboat Capital Partners, LLC | 182,773 | $23.2M | 4.96% | −40,618−18.2% | Reduced |
| New York State Common Retirement Fund | 191,535 | $24.3M | 0.03% | −67,901−26.2% | Reduced |
| Jacobs Levy Equity Management, Inc | 191,966 | $24.4M | 0.09% | −52,286−21.4% | Reduced |
| Public Sector Pension Investment Board | 196,012 | $24.9M | 0.07% | +5,386+2.8% | Added |
| JPMorgan Chase & Co | 214,853 | $25.8M | 0.00% | −82,720−27.8% | Reduced |
| Citigroup Inc | 209,845 | $26.6M | 0.01% | −410,047−66.1% | Reduced |
| Two Sigma Investments, LP | 212,544 | $27.0M | 0.02% | +160,128+305.5% | Added |
| Russell Investments Group, Ltd. | 221,775 | $28.1M | 0.02% | +60,842+37.8% | Added |
| Congress Asset Management Co | 223,855 | $28.4M | 0.18% | −116,008−34.1% | Reduced |
| 12 West Capital Management LP | 225,000 | $28.6M | 5.34% | +218,900+3,588.5% | Added |
| Renaissance Technologies LLC | 229,800 | $29.2M | 0.04% | +107,200+87.4% | Added |
| MY.Alpha Management HK Advisors Ltd | 249,500 | $31.7M | 12.19% | +249,500 | New |
| Susquehanna International Group, LLP | 253,671 | $32.2M | 0.03% | +193,924+324.6% | Added |
| Cederberg Capital Ltd | 254,669 | $32.3M | 32.20% | −344,531−57.5% | Reduced |
| Mackenzie Financial Corp | 268,004 | $34.0M | 0.03% | +197,125+278.1% | Added |
| Oasis Management Co Ltd. | 274,525 | $34.8M | 3.79% | +4,437+1.6% | Added |
| Qube Research & Technologies Ltd | 280,015 | $35.5M | 0.04% | −444,390−61.3% | Reduced |
| Penn Capital Management Co Inc | 285,790 | $36.3M | 2.30% | −111,976−28.2% | Reduced |
| First Trust Advisors LP | 306,034 | $38.8M | 0.02% | −67,953−18.2% | Reduced |
| AQR Capital Management LLC | 314,172 | $39.9M | 0.01% | −9,240−2.9% | Reduced |
| Bank of New York Mellon Corp | 326,284 | $41.4M | 0.01% | +11,675+3.7% | Added |
| Raiffeisen Bank International AG | 360,000 | $42.8M | 0.50% | −20,000−5.3% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 351,204 | $44.6M | 0.10% | −114,555−24.6% | Reduced |
| Wexford Capital LP | 355,400 | $45.1M | 6.19% | −243,846−40.7% | Reduced |
| Principal Financial Group Inc | 370,913 | $47.1M | 0.02% | +30,189+8.9% | Added |
| UBS Group AG | 402,473 | $51.1M | 0.01% | −1,636−0.4% | Reduced |
| Vanguard Fiduciary Trust Co | 404,100 | $51.3M | 0.01% | +62,699+18.4% | Added |
| Goldman Sachs Group Inc | 426,243 | $54.1M | 0.01% | −126,061−22.8% | Reduced |
| Toroso Investments, LLC | 470,937 | $59.8M | 0.14% | +157,122+50.1% | Added |
| Bank of America Corp | 479,706 | $60.9M | 0.00% | +77,294+19.2% | Added |
| Charles Schwab Investment Management Inc | 526,760 | $66.8M | 0.01% | +45,541+9.5% | Added |
| Jupiter Topco LLC | 553,768 | $70.2M | 0.03% | +553,768 | New |
| Northern Trust Corp | 569,126 | $72.2M | 0.01% | +6,591+1.2% | Added |
| Price T Rowe Associates Inc | 591,573 | $75.1M | 0.01% | +374,618+172.7% | Added |
| Polunin Capital Partners Ltd | 748,498 | $77.1M | 18.92% | −14,820−1.9% | Reduced |
| Capital International Investors | 623,429 | $79.1M | 0.02% | +623,429 | New |
| Citadel Advisors LLC | 636,836 | $80.8M | 0.05% | +433,458+213.1% | Added |
| Gilder Gagnon Howe & Co LLC | 637,058 | $80.8M | 0.83% | +565,813+794.2% | Added |
| Fuller & Thaler Asset Management, Inc. | 639,448 | $81.1M | 0.22% | +639,448 | New |
| FMR LLC | 672,184 | $85.3M | 0.00% | +42,940+6.8% | Added |
| Morgan Stanley | 700,185 | $88.8M | 0.00% | −492,520−41.3% | Reduced |
| Tekne Capital Management, LLC | 737,500 | $93.6M | 30.62% | +22,500+3.1% | Added |
| WCM Investment Management, LLC | 917,651 | $109.1M | 0.20% | −943,223−50.7% | Reduced |
| Dimensional Fund Advisors LP | 954,474 | $121.1M | 0.02% | +235,451+32.7% | Added |
| Ward Ferry Management (BVI) Ltd | 969,200 | $123.0M | 18.56% | +969,200 | New |
| Value Aligned Research Advisors, LLC | 1,053,949 | $133.7M | 0.80% | +98,022+10.3% | Added |
| Invesco Ltd. | 1,170,080 | $148.5M | 0.01% | +382,979+48.7% | Added |
| Geode Capital Management, LLC | 1,487,797 | $188.8M | 0.01% | +116,570+8.5% | Added |
| State Street Corp | 2,188,254 | $277.7M | 0.01% | +182,138+9.1% | Added |
| Capital World Investors | 2,398,036 | $304.3M | 0.04% | +2,398,036 | New |
| Vanguard Capital Management LLC | 2,462,745 | $312.5M | 0.01% | +198,408+8.8% | Added |
| Vanguard Portfolio Management LLC | 3,349,436 | $425.0M | 0.02% | +1,145,605+52.0% | Added |
| BlackRock, Inc. | 8,660,842 | $1.10B | 0.02% | +675,995+8.5% | Added |
| Oxbow Capital Management (HK) Ltd | 0 | $0 | 0.00% | −596,689−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −129,328−100.0% | Sold out |
| Nearwater Capital Markets, Ltd | 0 | $0 | 0.00% | −94,200−100.0% | Sold out |
| Segall Bryant & Hamill, LLC | 0 | $0 | 0.00% | −87,964−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −76,212−100.0% | Sold out |
| Hussman Strategic Advisors, Inc. | 0 | $0 | 0.00% | −63,000−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −47,076−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −38,194−100.0% | Sold out |
| Capelight Capital Asset Management LP | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −26,759−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −26,055−100.0% | Sold out |
| Gordian Capital Singapore Pte Ltd | 0 | $0 | 0.00% | −26,000−100.0% | Sold out |
| Blackstone Group Inc. | 0 | $0 | 0.00% | −20,241−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −19,499−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −18,303−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −17,105−100.0% | Sold out |
| Harvest Investment Services, LLC | 0 | $0 | 0.00% | −14,182−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −14,143−100.0% | Sold out |
| Allstate Corp | 0 | $0 | 0.00% | −10,146−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −10,073−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −7,773−100.0% | Sold out |
| Beacon Pointe Advisors, LLC | 0 | $0 | 0.00% | −7,666−100.0% | Sold out |
| Pekin Hardy Strauss, Inc. | 0 | $0 | 0.00% | −7,500−100.0% | Sold out |