ACMR
ACM Research, Inc.$63.58-3.27 (-4.88%)Prev Close$66.86·MCap$4.62B·P/E48.53·Vol849.9K·Yield—
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
20
$53.05M
◆
Net Activity
Net Seller
$53.05M
●
Active Insiders
9
last 12 mo
Over the past 12 months, insider activity at ACM Research, Inc. (ACMR) has been exclusively selling, with 0 insider purchases totaling $0.00 and 20 insider sales totaling $53.05M. The most recent insider transaction was by Wang David H (director, 10 percent owner, officer: See Remarks), who sold $10.63M worth of shares on Sep 10, 2026. ACM Research, Inc. operates in the Technology sector, within the Semiconductors industry, with a market cap of $4.62B.
ACMR Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | Wang David H | director, 10 percent owner, officer: See Remarks | Sell | 140,000 | $75.93 | $10.63M | 867,905 |
| Aug 21, 2026 | McKechnie Mark | officer: See Remarks | Sell | 55,199 | $77.27 | $4.26M | 42,474-57% |
| Aug 20, 2026 | Dun Haiping | director | Sell | 5,000 | $81.13 | $405.7K | 3,800-57% |
| Jun 5, 2026 | Wang David H | director, 10 percent owner, officer: See Remarks | Sell | 100,002 | $88.35 | $8.84M | 858,408 |
| Jun 5, 2026 | Cheav Sotheara | officer: See remarks | Sell | 18,750 | $84.58 | $1.59M | 112,053 |
| May 21, 2026 | Dun Haiping | director | Sell | 5,000 | $66.22 | $331.1K | 3,667-58% |
| Apr 21, 2026 | Pappis Charles C | director | Sell | 5,000 | $52.00 | $260.0K | 0Exit |
| Mar 13, 2026 | McKechnie Mark | officer: See Remarks | Sell | 98,551 | $45.58 | $4.49M | 48,990-67% |
| Mar 13, 2026 | Wang David H | director, 10 percent owner, officer: See Remarks | Sell | 110,000 | $46.86 | $5.15M | 842,147 |
| Mar 12, 2026 | Liu Tracy | director | Sell | 60,000 | $47.51 | $2.85M | 123,556-33% |
| Mar 11, 2026 | Dun Haiping | director | Sell | 5,000 | $43.47 | $217.4K | 900-85% |
| Mar 9, 2026 | Feng Lisa | officer: See remarks | Sell | 30,000 | $48.04 | $1.44M | 56,951-35% |
| Mar 9, 2026 | Pappis Charles C | director | Sell | 5,000 | $50.09 | $250.4K | 0Exit |
| Dec 4, 2025 | McKechnie Mark | See Remarks | Sell | 31,250 | $34.93 | $1.09M | 0 |
| Dec 3, 2025 | Wang David H | See Remarks | Sell | 130,000 | $33.55 | $4.36M | 0 |
| Dec 2, 2025 | Chen Fuping | See remarks | Sell | 120,000 | $33.18 | $3.98M | 0 |
| Nov 12, 2025 | Feng Lisa | See remarks | Sell | 30,000 | $33.27 | $998.0K | 0 |
| Sep 18, 2025 | Cheav Sotheara | See remarks | Sell | 10,000 | $35.00 | $350.0K | 0 |
| Sep 18, 2025 | Wang Jian | See remarks | Sell | 30,000 | $35.00 | $1.05M | 0 |
| Sep 17, 2025 | Liu Tracy | Director | Sell | 15,000 | $33.00 | $495.0K | 0 |
| Sep 3, 2025 | Wang David H | See Remarks | Sell | 130,000 | $26.61 | $3.46M | 0 |
| Aug 22, 2025 | Cheav Sotheara | See remarks | Sell | 11,152 | $30.00 | $334.6K | 0 |
| Aug 22, 2025 | Wang Jian | See remarks | Sell | 60,000 | $31.00 | $1.86M | 0 |
| Jul 15, 2025 | Liu Tracy | Director | Sell | 15,000 | $30.00 | $450.0K | 0 |
| Jul 7, 2025 | Feng Lisa | See remarks | Sell | 15,000 | $28.00 | $420.0K | 0 |
| Jun 24, 2025 | Feng Lisa | See remarks | Sell | 15,000 | $26.00 | $390.0K | 0 |
| May 21, 2025 | Wang David H | See Remarks | Sell | 130,000 | $23.15 | $3.01M | 0 |
| May 14, 2025 | McKechnie Mark | See Remarks | Sell | 15,000 | $25.22 | $378.3K | 0 |
| Mar 17, 2025 | Hu Chenming | Director | Sell | 163,308 | $30.00 | $4.90M | 0 |
| Mar 14, 2025 | Dun Haiping | Director | Sell | 9,518 | $29.00 | $276.0K | 0 |
| Mar 12, 2025 | McKechnie Mark | See Remarks | Sell | 15,000 | $27.42 | $411.3K | 0 |
| Mar 11, 2025 | Wang David H | See Remarks | Sell | 131,250 | $27.02 | $3.55M | 0 |
| Mar 10, 2025 | Dun Haiping | Director | Sell | 15,001 | $26.54 | $398.1K | 0 |
| Mar 3, 2025 | Dun Haiping | Director | Sell | 482 | $25.94 | $12.5K | 0 |
| Mar 3, 2025 | Wang David H | See Remarks | Sell | 4,048 | $25.94 | $105.0K | 0 |
| Feb 6, 2025 | Cheav Sotheara | See remarks | Sell | 22,598 | $23.00 | $519.8K | 0 |
| Feb 6, 2025 | McKechnie Mark | See Remarks | Sell | 15,000 | $22.00 | $330.0K | 0 |
| Nov 29, 2024 | Dun Haiping | Director | Sell | 19,058 | $17.43 | $332.2K | 0 |
| Nov 29, 2024 | Wang David H | See Remarks | Sell | 56,250 | $17.44 | $981.0K | 0 |
| Nov 26, 2024 | Wang David H | See Remarks | Sell | 56,250 | $17.89 | $1.01M | 0 |
| Nov 22, 2024 | Dun Haiping | Director | Sell | 15,000 | $19.12 | $286.8K | 0 |
| Nov 22, 2024 | Wang David H | See Remarks | Sell | 56,250 | $19.08 | $1.07M | 0 |
| Nov 14, 2024 | Dun Haiping | Director | Sell | 942 | $18.59 | $17.5K | 0 |
| Nov 14, 2024 | Wang David H | See Remarks | Sell | 7,262 | $18.59 | $135.0K | 0 |
| Oct 4, 2024 | McKechnie Mark | See Remarks | Sell | 16,516 | $22.00 | $363.4K | 0 |
| Oct 4, 2024 | Xing Xiao | Director | Sell | 1,065,396 | $22.07 | $23.52M1.6% OS | 0 |
| Oct 1, 2024 | Xing Xiao | Director | Sell | 34,604 | $20.05 | $693.9K | 0 |
| Aug 29, 2024 | Dun Haiping | Director | Sell | 19,097 | $18.08 | $345.3K | 0 |
| Aug 22, 2024 | Dun Haiping | Director | Sell | 15,000 | $19.85 | $297.8K | 0 |
| Aug 14, 2024 | Dun Haiping | Director | Sell | 903 | $19.38 | $17.5K | 0 |
Showing 1–50 of 116
1 / 3
ACMR Insider Buying Activity
The following table shows recent insider purchases of ACM Research, Inc. (ACMR) stock reported via SEC Form 4 filings.
No insider buying activity found for ACMR in the last 12 months.
ACMR Insider Selling Activity
The following table shows recent insider sales of ACM Research, Inc. (ACMR) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | Wang David H | director, 10 percent owner, officer: See Remarks | Sell | 140,000 | $75.93 | $10.63M | 867,905 |
| Aug 21, 2026 | McKechnie Mark | officer: See Remarks | Sell | 55,199 | $77.27 | $4.26M | 42,474-57% |
| Aug 20, 2026 | Dun Haiping | director | Sell | 5,000 | $81.13 | $405.7K | 3,800-57% |
| Jun 5, 2026 | Wang David H | director, 10 percent owner, officer: See Remarks | Sell | 100,002 | $88.35 | $8.84M | 858,408 |
| Jun 5, 2026 | Cheav Sotheara | officer: See remarks | Sell | 18,750 | $84.58 | $1.59M | 112,053 |
| May 21, 2026 | Dun Haiping | director | Sell | 5,000 | $66.22 | $331.1K | 3,667-58% |
| Apr 21, 2026 | Pappis Charles C | director | Sell | 5,000 | $52.00 | $260.0K | 0Exit |
| Mar 13, 2026 | McKechnie Mark | officer: See Remarks | Sell | 98,551 | $45.58 | $4.49M | 48,990-67% |
| Mar 13, 2026 | Wang David H | director, 10 percent owner, officer: See Remarks | Sell | 110,000 | $46.86 | $5.15M | 842,147 |
| Mar 12, 2026 | Liu Tracy | director | Sell | 60,000 | $47.51 | $2.85M | 123,556-33% |
| Mar 11, 2026 | Dun Haiping | director | Sell | 5,000 | $43.47 | $217.4K | 900-85% |
| Mar 9, 2026 | Feng Lisa | officer: See remarks | Sell | 30,000 | $48.04 | $1.44M | 56,951-35% |
| Mar 9, 2026 | Pappis Charles C | director | Sell | 5,000 | $50.09 | $250.4K | 0Exit |
| Dec 4, 2025 | McKechnie Mark | See Remarks | Sell | 31,250 | $34.93 | $1.09M | 0 |
| Dec 3, 2025 | Wang David H | See Remarks | Sell | 130,000 | $33.55 | $4.36M | 0 |
| Dec 2, 2025 | Chen Fuping | See remarks | Sell | 120,000 | $33.18 | $3.98M | 0 |
| Nov 12, 2025 | Feng Lisa | See remarks | Sell | 30,000 | $33.27 | $998.0K | 0 |
| Sep 18, 2025 | Cheav Sotheara | See remarks | Sell | 10,000 | $35.00 | $350.0K | 0 |
| Sep 18, 2025 | Wang Jian | See remarks | Sell | 30,000 | $35.00 | $1.05M | 0 |
| Sep 17, 2025 | Liu Tracy | Director | Sell | 15,000 | $33.00 | $495.0K | 0 |
| Sep 3, 2025 | Wang David H | See Remarks | Sell | 130,000 | $26.61 | $3.46M | 0 |
| Aug 22, 2025 | Cheav Sotheara | See remarks | Sell | 11,152 | $30.00 | $334.6K | 0 |
| Aug 22, 2025 | Wang Jian | See remarks | Sell | 60,000 | $31.00 | $1.86M | 0 |
| Jul 15, 2025 | Liu Tracy | Director | Sell | 15,000 | $30.00 | $450.0K | 0 |
| Jul 7, 2025 | Feng Lisa | See remarks | Sell | 15,000 | $28.00 | $420.0K | 0 |
| Jun 24, 2025 | Feng Lisa | See remarks | Sell | 15,000 | $26.00 | $390.0K | 0 |
| May 21, 2025 | Wang David H | See Remarks | Sell | 130,000 | $23.15 | $3.01M | 0 |
| May 14, 2025 | McKechnie Mark | See Remarks | Sell | 15,000 | $25.22 | $378.3K | 0 |
| Mar 17, 2025 | Hu Chenming | Director | Sell | 163,308 | $30.00 | $4.90M | 0 |
| Mar 14, 2025 | Dun Haiping | Director | Sell | 9,518 | $29.00 | $276.0K | 0 |
| Mar 12, 2025 | McKechnie Mark | See Remarks | Sell | 15,000 | $27.42 | $411.3K | 0 |
| Mar 11, 2025 | Wang David H | See Remarks | Sell | 131,250 | $27.02 | $3.55M | 0 |
| Mar 10, 2025 | Dun Haiping | Director | Sell | 15,001 | $26.54 | $398.1K | 0 |
| Mar 3, 2025 | Dun Haiping | Director | Sell | 482 | $25.94 | $12.5K | 0 |
| Mar 3, 2025 | Wang David H | See Remarks | Sell | 4,048 | $25.94 | $105.0K | 0 |
| Feb 6, 2025 | Cheav Sotheara | See remarks | Sell | 22,598 | $23.00 | $519.8K | 0 |
| Feb 6, 2025 | McKechnie Mark | See Remarks | Sell | 15,000 | $22.00 | $330.0K | 0 |
| Nov 29, 2024 | Dun Haiping | Director | Sell | 19,058 | $17.43 | $332.2K | 0 |
| Nov 29, 2024 | Wang David H | See Remarks | Sell | 56,250 | $17.44 | $981.0K | 0 |
| Nov 26, 2024 | Wang David H | See Remarks | Sell | 56,250 | $17.89 | $1.01M | 0 |
| Nov 22, 2024 | Dun Haiping | Director | Sell | 15,000 | $19.12 | $286.8K | 0 |
| Nov 22, 2024 | Wang David H | See Remarks | Sell | 56,250 | $19.08 | $1.07M | 0 |
| Nov 14, 2024 | Dun Haiping | Director | Sell | 942 | $18.59 | $17.5K | 0 |
| Nov 14, 2024 | Wang David H | See Remarks | Sell | 7,262 | $18.59 | $135.0K | 0 |
| Oct 4, 2024 | McKechnie Mark | See Remarks | Sell | 16,516 | $22.00 | $363.4K | 0 |
| Oct 4, 2024 | Xing Xiao | Director | Sell | 1,065,396 | $22.07 | $23.52M1.6% OS | 0 |
| Oct 1, 2024 | Xing Xiao | Director | Sell | 34,604 | $20.05 | $693.9K | 0 |
| Aug 29, 2024 | Dun Haiping | Director | Sell | 19,097 | $18.08 | $345.3K | 0 |
| Aug 22, 2024 | Dun Haiping | Director | Sell | 15,000 | $19.85 | $297.8K | 0 |
| Aug 14, 2024 | Dun Haiping | Director | Sell | 903 | $19.38 | $17.5K | 0 |
ACMR Insiders
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