| $255M | ||
| $48M | ||
| $38M | ||
| $37M | ||
| $34M | ||
| $34M |
Buys | $0 | 0 | 0 |
Sells | $51,802,490 | 28 | 100 |
| Pappis Charles C | director | 0 | $0 | 2 | $510,450 | $-510,450 |
| Dun Haiping | director | 0 | $0 | 3 | $954,144 | $-954,144 |
| Cheav Sotheara | See remarks | 0 | $0 | 2 | $1.59M | $-1.59M |
| Feng Lisa | See remarks | 0 | $0 | 4 | $2.44M | $-2.44M |
| Liu Tracy | director | 0 | $0 | 2 | $2.85M | $-2.85M |
| Chen Fuping | See remarks | 0 | $0 | 3 | $4.63M | $-4.63M |
| McKechnie Mark | See Remarks | 0 | $0 | 4 | $9.85M | $-9.85M |
| Wang David H | See Remarks | 0 | $0 | 8 | $28.98M | $-28.98M |
ACM Research, Inc., along with its affiliated companies, is a global developer, manufacturer, and provider of specialized single-wafer wet cleaning systems. These crucial systems are designed to enhance manufacturing processes and improve the yield of integrated circuits across the globe. The company's innovative technological offerings include: Space Alternated Phase Shift (SAPS) technology: This system uniformly applies megasonic energy at a microscopic scale to both flat and patterned wafer surfaces by utilizing alternating phases of …
Over the last 12 months, insiders at ACM Research, Inc. have bought $0 and sold $51.8M worth of ACM Research, Inc. stock.
On average, over the past 5 years, insiders at ACM Research, Inc. have bought $0 and sold $38.75M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
| 2026-09-09 | Sale | Wang David H | See Remarks | 70,000 0.1103% | $74.59 | $5.22M | -8.21% | |
| 2026-09-08 | Sale | Wang David H | See Remarks | 70,000 0.1036% | $77.26 | $5.41M | -11.67% | |
| 2026-08-20 | Sale | McKechnie Mark | See Remarks | 55,199 0.0847% | $77.27 | $4.26M | -9.47% | |
| 2026-08-18 | Sale | Dun Haiping | director | 5,000 0.0075% | $81.13 | $405,670 | -15.04% | |
| 2026-06-05 | Sale | Cheav Sotheara | See remarks | 5,399 0.0078% | $83.18 | $449,085 | +3.61% | |
| 2026-06-04 | Sale | Wang David H | See Remarks | 40,002 0.0593% | $85.80 | $3.43M | -12.45% | |
| 2026-06-04 | Sale | Cheav Sotheara | See remarks | 13,351 0.0197% | $85.15 | $1.14M | -12.45% | |
| 2026-06-03 | Sale | Wang David H | See Remarks | 60,000 0.0948% | $90.05 | $5.4M | -11.05% | |
| 2026-05-19 | Sale | Dun Haiping | director | 5,000 0.0075% | $66.22 | $331,111 | +19.50% | |
| 2026-04-17 | Sale | Pappis Charles C | director | 5,000 0.0078% | $52.00 | $260,000 | +51.35% | |
| 2026-03-12 | Sale | Wang David H | See Remarks | 50,000 0.0766% | $45.58 | $2.28M | +60.75% | |
| 2026-03-12 | Sale | McKechnie Mark | See Remarks | 98,551 0.151% | $45.58 | $4.49M | +60.75% | |
| 2026-03-11 | Sale | Wang David H | See Remarks | 60,000 0.0914% | $47.92 | $2.88M | +51.98% | |
| 2026-03-11 | Sale | Liu Tracy | director | 15,000 0.0228% | $47.91 | $718,636 | +51.98% | |
| 2026-03-10 | Sale | Liu Tracy | director | 45,000 0.0695% | $47.38 | $2.13M | +51.41% | |
| 2026-03-09 | Sale | Dun Haiping | director | 5,000 0.0074% | $43.47 | $217,363 | +55.45% | |
| 2026-03-06 | Sale | Feng Lisa | See remarks | 15,000 0.0237% | $46.08 | $691,152 | +61.15% | |
| 2026-03-05 | Sale | Feng Lisa | See remarks | 15,000 0.0239% | $50.01 | $750,139 | +49.46% | |
| 2026-03-05 | Sale | Pappis Charles C | director | 5,000 0.008% | $50.09 | $250,450 | +49.46% | |
| 2025-12-08 | Sale | McKechnie Mark | See Remarks | 22,500 0.0343% | $35.45 | $797,625 | +74.99% |
| Increased Positions | 166 | +56.08% | 10M | +23.67% |
| Decreased Positions | 134 | -45.27% | 6M | -13.86% |
| New Positions | 70 | New | 3M | New |
| Sold Out Positions | 48 | Sold Out | 1M | Sold Out |
| Total Postitions | 328 | +10.81% | 46M | +9.82% |
| 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 |