| $164M | ||
| $143M | ||
| $143M | ||
| $76M | ||
| $60M | ||
| $57M |
Buys | $0 | 0 | 0 |
Sells | $32,811,822 | 30 | 100 |
| Dun Haiping | director | 0 | $0 | 2 | $674,103 | $-674,103 |
| Cheav Sotheara | See remarks | 0 | $0 | 2 | $684,560 | $-684,560 |
| Liu Tracy | director | 0 | $0 | 2 | $945,000 | $-945,000 |
| Feng Lisa | See remarks | 0 | $0 | 4 | $1.81M | $-1.81M |
| McKechnie Mark | See Remarks | 0 | $0 | 4 | $1.88M | $-1.88M |
| Wang Jian | See remarks | 0 | $0 | 3 | $2.91M | $-2.91M |
| Chen Fuping | See remarks | 0 | $0 | 3 | $4.63M | $-4.63M |
| Hu Chenming | director | 0 | $0 | 1 | $4.9M | $-4.9M |
| Wang David H | See Remarks | 0 | $0 | 9 | $14.38M | $-14.38M |
ACM Research, Inc., together with its subsidiaries, develops, manufactures, and sells single-wafer wet cleaning equipment for enhancing the manufacturing process and yield for integrated chips worldwide. It offers space alternated phase shift technology for flat and patterned wafer surfaces, which employs alternating phases of megasonic waves to deliver megasonic energy in a uniform manner on a microscopic level; timely energized bubble oscillation technology for patterned wafer surfaces at advanced process nodes, which provides cleaning for 2D and 3D patterned wafers; Tahoe technology for delivering cleaning performance using less sulfuric acid and hydrogen peroxide; and electro-chemical plating technology for advanced metal plating. The company markets and sells its products under the Ultra C brand name through direct sales force and third-party representatives. ACM Research, Inc. was incorporated in 1998 and is headquartered in Fremont, California.
Over the last 12 months, insiders at ACM Research, Inc. have bought $0 and sold $32.81M worth of ACM Research, Inc. stock.
On average, over the past 5 years, insiders at ACM Research, Inc. have bought $0 and sold $26.36M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
| 2025-12-08 | Sale | McKechnie Mark | See Remarks | 22,500 0.0343% | $35.45 | $797,625 | +38.59% | |
| 2025-12-04 | Sale | Wang David H | See Remarks | 60,000 0.093% | $34.12 | $2.05M | +45.41% | |
| 2025-12-04 | Sale | McKechnie Mark | See Remarks | 8,750 0.0133% | $33.59 | $293,882 | +45.41% | |
| 2025-12-03 | Sale | Wang David H | See Remarks | 70,000 0.1072% | $33.06 | $2.31M | +48.26% | |
| 2025-12-03 | Sale | Chen Fuping | See remarks | 19,700 0.0302% | $33.05 | $651,085 | +48.26% | |
| 2025-12-03 | Sale | Chen Fuping | See remarks | 20,000 0.0306% | $33.06 | $661,156 | +48.26% | |
| 2025-12-02 | Sale | Chen Fuping | See remarks | 100,000 0.1588% | $33.20 | $3.32M | +53.03% | |
| 2025-11-13 | Sale | Feng Lisa | See remarks | 15,000 0.0244% | $33.77 | $506,550 | +25.03% | |
| 2025-11-12 | Sale | Feng Lisa | See remarks | 15,000 0.0246% | $32.76 | $491,400 | +20.42% | |
| 2025-09-18 | Sale | Wang Jian | See remarks | 30,000 0.0453% | $35.00 | $1.05M | +10.75% | |
| 2025-09-18 | Sale | Cheav Sotheara | See remarks | 10,000 0.0151% | $35.00 | $350,000 | +10.75% | |
| 2025-09-17 | Sale | Liu Tracy | director | 15,000 0.0228% | $33.00 | $495,000 | +18.26% | |
| 2025-09-04 | Sale | Wang David H | See Remarks | 60,000 0.0916% | $26.44 | $1.59M | +46.33% | |
| 2025-09-03 | Sale | Wang David H | See Remarks | 70,000 0.1088% | $26.76 | $1.87M | +47.09% | |
| 2025-08-25 | Sale | Wang Jian | See remarks | 30,000 0.049% | $32.00 | $960,000 | +35.63% | |
| 2025-08-22 | Sale | Wang Jian | See remarks | 30,000 0.0459% | $30.00 | $900,000 | +27.71% | |
| 2025-08-22 | Sale | Cheav Sotheara | See remarks | 11,152 0.0171% | $30.00 | $334,560 | +27.71% | |
| 2025-07-15 | Sale | Liu Tracy | director | 15,000 0.0239% | $30.00 | $450,000 | +26.82% | |
| 2025-07-07 | Sale | Feng Lisa | See remarks | 15,000 0.0236% | $28.00 | $420,000 | +31.09% | |
| 2025-06-24 | Sale | Feng Lisa | See remarks | 15,000 0.0234% | $26.00 | $390,000 | +37.09% |
| Increased Positions | 162 | +55.86% | 8M | +19.32% |
| Decreased Positions | 130 | -44.83% | 8M | -17.78% |
| New Positions | 71 | New | 4M | New |
| Sold Out Positions | 46 | Sold Out | 3M | Sold Out |
| Total Postitions | 322 | +11.03% | 44M | +1.54% |
| Blackrock, Inc. | $340,529.00 | 12.65% | 7.59M | +3M | +84.79% | 2025-09-30 |
| Vanguard Group Inc | $217,507.00 | 8.08% | 4.85M | +549,971 | +12.8% | 2025-09-30 |
| Lsv Asset Management | $112,393.00 | 4.17% | 2.5M | +2M | +462.89% | 2025-09-30 |
| Triata Capital Ltd | $89,905.00 | 3.34% | 2M | +413,000 | +25.97% | 2025-09-30 |
| State Street Corp | $89,323.00 | 3.32% | 1.99M | +735,555 | +58.62% | 2025-09-30 |
| Southeastern Asset Management Inc/Tn/ | $66,678.00 | 2.48% | 1.49M | +299,943 | +25.3% | 2025-09-30 |
| Mitsubishi Ufj Trust & Banking Corp | $61,035.00 | 2.27% | 1.36M | -942,382 | -40.93% | 2025-09-30 |
| Geode Capital Management, Llc | $59,399.00 | 2.21% | 1.32M | +85,471 | +6.9% | 2025-09-30 |
| Federated Hermes, Inc. | $47,628.00 | 1.77% | 1.06M | -360,452 | -25.35% | 2025-09-30 |
| Broad Bay Capital Management, Lp | $45,437.00 | 1.69% | 1.01M | +33,761 | +3.45% | 2025-09-30 |