ACMR Insider Transactions
252 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.
ACMR insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| McKechnie Mark | See Remarks | 2026-08-20 | Sale | 11,209 | $77.89 |
| McKechnie Mark | See Remarks | 2026-08-20 | Sale | 30,365 | $77.45 |
| McKechnie Mark | See Remarks | 2026-08-20 | Sale | 13,625 | $76.34 |
| Dun Haiping | Director | 2026-08-18 | Sale | 400 | $82.17 |
| Dun Haiping | Director | 2026-08-18 | Sale | 3,400 | $81.31 |
| Dun Haiping | Director | 2026-08-18 | Sale | 1,200 | $80.29 |
| Cheav Sotheara | See remarks | 2026-06-05 | Sale | 1,647.0 | $85.41 |
| Cheav Sotheara | See remarks | 2026-06-05 | Sale | 400.0 | $84.01 |
| Cheav Sotheara | See remarks | 2026-06-05 | Sale | 968.0 | $82.61 |
| Cheav Sotheara | See remarks | 2026-06-05 | Sale | 2,384.0 | $81.73 |
| Cheav Sotheara | See remarks | 2026-06-04 | Sale | 2,839.0 | $85.77 |
| Cheav Sotheara | See remarks | 2026-06-04 | Sale | 9,212.0 | $85.11 |
| Cheav Sotheara | See remarks | 2026-06-04 | Sale | 1,300.0 | $84.08 |
| Wang David H | See Remarks | 2026-06-04 | Sale | 826.0 | $87.91 |
| Wang David H | See Remarks | 2026-06-04 | Sale | 8,581.0 | $87.13 |
| Wang David H | See Remarks | 2026-06-04 | Sale | 10,992.0 | $86.07 |
| Wang David H | See Remarks | 2026-06-04 | Sale | 17,543.0 | $85.11 |
| Wang David H | See Remarks | 2026-06-04 | Sale | 2,060.0 | $83.86 |
| Wang David H | See Remarks | 2026-06-03 | Sale | 1,187.0 | $93.04 |
| Wang David H | See Remarks | 2026-06-03 | Sale | 5,843.0 | $92.38 |
| Wang David H | See Remarks | 2026-06-03 | Sale | 9,925.0 | $90.78 |
| Wang David H | See Remarks | 2026-06-03 | Sale | 32,450.0 | $89.84 |
| Wang David H | See Remarks | 2026-06-03 | Sale | 6,295.0 | $88.98 |
| Wang David H | See Remarks | 2026-06-03 | Sale | 4,300.0 | $87.57 |
| Dun Haiping | Director | 2026-05-19 | Sale | 1,858.0 | $67.54 |
| Dun Haiping | Director | 2026-05-19 | Sale | 1,309.0 | $67.21 |
| Dun Haiping | Director | 2026-05-19 | Sale | 500.0 | $65.09 |
| Dun Haiping | Director | 2026-05-19 | Sale | 1,333.0 | $63.84 |
| Pappis Charles C | Director | 2026-04-17 | Sale | 5,000.0 | $52.0 |
| McKechnie Mark | See Remarks | 2026-03-12 | Sale | 564.0 | $46.57 |
| McKechnie Mark | See Remarks | 2026-03-12 | Sale | 29,348.0 | $45.74 |
| McKechnie Mark | See Remarks | 2026-03-12 | Sale | 8,639.0 | $44.94 |
| McKechnie Mark | See Remarks | 2026-03-12 | Sale | 982.0 | $46.55 |
| McKechnie Mark | See Remarks | 2026-03-12 | Sale | 47,108.0 | $45.74 |
| McKechnie Mark | See Remarks | 2026-03-12 | Sale | 11,910.0 | $44.89 |
| Wang David H | See Remarks | 2026-03-12 | Sale | 702.0 | $46.57 |
| Wang David H | See Remarks | 2026-03-12 | Sale | 38,737.0 | $45.74 |
| Wang David H | See Remarks | 2026-03-12 | Sale | 10,561.0 | $44.92 |
| Wang David H | See Remarks | 2026-03-11 | Sale | 4,627.0 | $48.34 |
| Wang David H | See Remarks | 2026-03-11 | Sale | 55,373.0 | $47.89 |
| Liu Tracy | Director | 2026-03-11 | Sale | 3,377.0 | $48.25 |
| Liu Tracy | Director | 2026-03-11 | Sale | 11,623.0 | $47.81 |
| Liu Tracy | Director | 2026-03-10 | Sale | 12,784.0 | $48.19 |
| Liu Tracy | Director | 2026-03-10 | Sale | 32,216.0 | $47.06 |
| Dun Haiping | Director | 2026-03-09 | Sale | 900.0 | $43.94 |
| Dun Haiping | Director | 2026-03-09 | Sale | 4,100.0 | $43.37 |
| Feng Lisa | See remarks | 2026-03-06 | Sale | 200.0 | $46.58 |
| Feng Lisa | See remarks | 2026-03-06 | Sale | 14,800.0 | $46.07 |
| Pappis Charles C | Director | 2026-03-05 | Sale | 5,000.0 | $50.09 |
| Feng Lisa | See remarks | 2026-03-05 | Sale | 6,950.0 | $50.24 |
| Feng Lisa | See remarks | 2026-03-05 | Sale | 8,050.0 | $49.81 |
| McKechnie Mark | See Remarks | 2025-12-08 | Sale | 22,500.0 | $35.45 |
| McKechnie Mark | See Remarks | 2025-12-04 | Sale | 996.0 | $34.26 |
| McKechnie Mark | See Remarks | 2025-12-04 | Sale | 7,754.0 | $33.5 |
| Wang David H | See Remarks | 2025-12-04 | Sale | 40,183.0 | $34.42 |
| Wang David H | See Remarks | 2025-12-04 | Sale | 19,817.0 | $33.52 |
| Wang David H | See Remarks | 2025-12-03 | Sale | 1,200.0 | $33.56 |
| Wang David H | See Remarks | 2025-12-03 | Sale | 68,800.0 | $33.05 |
| Chen Fuping | See remarks | 2025-12-03 | Sale | 300.0 | $33.57 |
| Chen Fuping | See remarks | 2025-12-03 | Sale | 19,700.0 | $33.05 |
| Chen Fuping | See remarks | 2025-12-02 | Sale | 100,000.0 | $33.2 |
| Feng Lisa | See remarks | 2025-11-13 | Sale | 15,000.0 | $33.77 |
| Feng Lisa | See remarks | 2025-11-12 | Sale | 15,000.0 | $32.76 |
| Cheav Sotheara | See remarks | 2025-09-18 | Sale | 10,000.0 | $35.0 |
| Wang Jian | See remarks | 2025-09-18 | Sale | 30,000.0 | $35.0 |
| Liu Tracy | Director | 2025-09-17 | Sale | 15,000.0 | $33.0 |
| Wang David H | See Remarks | 2025-09-04 | Sale | 60,000.0 | $26.44 |
| Wang David H | See Remarks | 2025-09-03 | Sale | 3,943.0 | $27.31 |
| Wang David H | See Remarks | 2025-09-03 | Sale | 66,057.0 | $26.73 |
| Wang Jian | See remarks | 2025-08-25 | Sale | 30,000.0 | $32.0 |
| Cheav Sotheara | See remarks | 2025-08-22 | Sale | 11,152.0 | $30.0 |
| Wang Jian | See remarks | 2025-08-22 | Sale | 30,000.0 | $30.0 |
| Liu Tracy | Director | 2025-07-15 | Sale | 15,000.0 | $30.0 |
| Feng Lisa | See remarks | 2025-07-07 | Sale | 15,000.0 | $28.0 |
| Feng Lisa | See remarks | 2025-06-24 | Sale | 15,000.0 | $26.0 |
| Wang David H | See Remarks | 2025-05-22 | Sale | 60,000.0 | $22.63 |
| Wang David H | See Remarks | 2025-05-21 | Sale | 8.0 | $24.04 |
| Wang David H | See Remarks | 2025-05-21 | Sale | 69,992.0 | $23.6 |
| McKechnie Mark | See Remarks | 2025-05-14 | Sale | 15,000.0 | $25.22 |
| Hu Chenming | Director | 2025-03-17 | Sale | 163,308.0 | $30.0 |
| Dun Haiping | Director | 2025-03-14 | Sale | 7,062.0 | $29.23 |
| Dun Haiping | Director | 2025-03-14 | Sale | 2,456.0 | $28.32 |
| Wang David H | See Remarks | 2025-03-13 | Sale | 1,019.0 | $27.65 |
| Wang David H | See Remarks | 2025-03-13 | Sale | 36,481.0 | $27.29 |
| McKechnie Mark | See Remarks | 2025-03-12 | Sale | 15,000.0 | $27.42 |
| Wang David H | See Remarks | 2025-03-12 | Sale | 37,500.0 | $27.42 |
| Wang David H | See Remarks | 2025-03-11 | Sale | 56,250.0 | $26.57 |
| Dun Haiping | Director | 2025-03-10 | Sale | 15,001.0 | $26.54 |
| Cheav Sotheara | See remarks | 2025-02-06 | Sale | 22,598.0 | $23.0 |
| McKechnie Mark | See Remarks | 2025-02-06 | Sale | 15,000.0 | $22.0 |
| Dun Haiping | Director | 2024-11-29 | Sale | 19,058.0 | $17.43 |
| Wang David H | See Remarks | 2024-11-29 | Sale | 56,250.0 | $17.44 |
| Wang David H | See Remarks | 2024-11-26 | Sale | 9,484.0 | $18.31 |
| Wang David H | See Remarks | 2024-11-26 | Sale | 46,766.0 | $17.8 |
| Dun Haiping | Director | 2024-11-22 | Sale | 15,000.0 | $19.12 |
| Wang David H | See Remarks | 2024-11-22 | Sale | 56,250.0 | $19.08 |
| Shanghai Pudong Science & Technology Investment Group Co., Ltd. | TenPercentOwner,Other | 2024-10-08 | Sale | 90,396.0 | $21.13 |
| Shanghai Science & Technology Venture Capital (Group) Co., Ltd. | TenPercentOwner,Other | 2024-10-08 | Sale | 90,396.0 | $21.13 |
| Xing Xiao | Director | 2024-10-08 | Sale | 90,396.0 | $21.13 |
| Shanghai Pudong Science & Technology Investment Group Co., Ltd. | TenPercentOwner,Other | 2024-10-07 | Sale | 173,005.0 | $23.32 |