Dun Haiping
SEC CIK 1721581 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| ACMR | ACM Research, Inc. | Dir | 5,000 | — | $8.26M | 57 | 2022-03-02 | 2026-08-18 |
Most active insiders at ACMR, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Wang David H | See Remarks, Dir, 10% | — | $28.98M |
| 2 | McKechnie Mark | See Remarks | — | $9.85M |
| 3 | Chen Fuping | See remarks | — | $3.98M |
| 4 | Liu Tracy | Dir | — | $2.85M |
| 5 | Feng Lisa | See remarks | — | $2.44M |
| 6 | Cheav Sotheara | See remarks | — | $1.59M |
| 7 | Dun Haiping | Dir | — | $954.1K |
| 8 | Pappis Charles C | Dir | — | $510.4K |
Transactions 57
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-08-20 16:30 | 2026-08-18 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $5.60 | +5,000 | 5,000 | New | +$28.0K |
| DMT | 2026-08-20 16:30 | 2026-08-18 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale+OE | $81.13 | -5,000 | 0 | -100% | -$405.7K |
| DT | 2026-05-21 16:30 | 2026-05-19 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $5.60 | +5,000 | 5,000 | New | +$28.0K |
| DMT | 2026-05-21 16:30 | 2026-05-19 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale+OE | $66.22 | -5,000 | 0 | -100% | -$331.1K |
| DMT | 2026-03-11 | 2026-03-09 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale+OE | $43.47 | -5,000 | 900 | -85% | -$217.4K |
| DT | 2026-03-11 | 2026-03-09 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $5.60 | +5,000 | 5,000 | New | +$28.0K |
| 2025-11-14 | 2025-11-12 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | G - Gift | $0.00 | -755.1K | 0 | -100% | $0 | |
| MT | 2025-03-18 | 2025-03-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $29.00 | -9,518 | 762.2K | -1% | -$276.0K |
| T | 2025-03-12 | 2025-03-10 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $26.54 | -15.0K | 764.6K | -2% | -$398.1K |
| D | 2025-03-05 | 2025-03-03 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +25.0K | 780.1K | +3% | +$12.5K |
| D | 2025-03-05 | 2025-03-03 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $25.94 | -482 | 779.6K | -0.1% | -$12.5K |
| T | 2024-12-03 | 2024-11-29 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $17.43 | -19.1K | 755.1K | -2% | -$332.2K |
| T | 2024-11-26 | 2024-11-22 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $19.12 | -15.0K | 774.1K | -2% | -$286.8K |
| D | 2024-11-18 | 2024-11-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $18.59 | -942 | 789.1K | -0.1% | -$17.5K |
| D | 2024-11-18 | 2024-11-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +35.0K | 790.1K | +5% | +$17.5K |
| T | 2024-09-03 | 2024-08-29 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $18.08 | -19.1K | 755.1K | -2% | -$345.3K |
| T | 2024-08-26 | 2024-08-22 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $19.85 | -15.0K | 774.2K | -2% | -$297.8K |
| D | 2024-08-16 | 2024-08-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $19.38 | -903 | 789.2K | -0.1% | -$17.5K |
| D | 2024-08-16 | 2024-08-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +35.0K | 790.1K | +5% | +$17.5K |
| M | 2024-07-01 | 2024-06-27 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | G - Gift | $0.00 | -400.0K | 755.1K | -35% | $0 |
| T | 2024-05-31 | 2024-05-29 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $22.63 | -19.2K | 855.1K | -2% | -$435.4K |
| T | 2024-05-24 | 2024-05-22 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $22.88 | -15.0K | 874.3K | -2% | -$343.2K |
| D | 2024-05-16 | 2024-05-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $23.02 | -761 | 889.3K | -0.1% | -$17.5K |
| D | 2024-05-16 | 2024-05-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +35.0K | 890.1K | +4% | +$17.5K |
| MT | 2024-03-15 | 2024-03-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $27.70 | -19.4K | 855.1K | -2% | -$538.4K |
| T | 2024-03-12 | 2024-03-08 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $30.36 | -15.0K | 874.5K | -2% | -$455.4K |
| D | 2024-03-05 | 2024-03-01 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $30.92 | -566 | 889.5K | -0.1% | -$17.5K |
| D | 2024-03-05 | 2024-03-01 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +35.0K | 890.1K | +4% | +$17.5K |
| T | 2023-12-01 | 2023-11-29 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $17.25 | -19.0K | 855.1K | -2% | -$327.5K |
| T | 2023-11-27 | 2023-11-22 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $17.66 | -15.0K | 874.1K | -2% | -$264.9K |
| D | 2023-11-16 | 2023-11-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +35.0K | 890.1K | +4% | +$17.5K |
| D | 2023-11-16 | 2023-11-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $17.23 | -1,016 | 889.1K | -0.1% | -$17.5K |
| 2023-08-24 | 2023-08-22 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $13.85 | -32.1K | 855.1K | -4% | -$444.6K | |
| 2023-06-05 | 2023-06-01 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $10.00 | -37.5K | 887.2K | -4% | -$375.0K | |
| D | 2023-05-24 | 2023-05-22 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $9.73 | -1,928 | 924.7K | -0.2% | -$18.8K |
| D | 2023-05-24 | 2023-05-22 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +37.5K | 926.6K | +4% | +$18.8K |
| 2023-03-20 | 2023-03-16 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $12.06 | -37.5K | 889.1K | -4% | -$452.2K | |
| D | 2023-03-13 | 2023-03-09 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +37.5K | 928.1K | +4% | +$18.8K |
| D | 2023-03-13 | 2023-03-09 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $12.47 | -1,504 | 926.6K | -0.2% | -$18.8K |
| 2022-12-02 | 2022-11-30 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $8.43 | -35.3K | 890.6K | -4% | -$297.8K | |
| D | 2022-11-25 | 2022-11-22 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +37.5K | 928.1K | +4% | +$18.8K |
| D | 2022-11-25 | 2022-11-22 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $8.63 | -2,173 | 925.9K | -0.2% | -$18.8K |
| D | 2022-11-15 | 2022-11-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $9.52 | -1,970 | 890.6K | -0.2% | -$18.8K |
| D | 2022-11-15 | 2022-11-14 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +37.5K | 892.6K | +4% | +$18.8K |
| 2022-08-24 | 2022-08-22 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $16.10 | -36.5K | 855.1K | -4% | -$588.2K | |
| D | 2022-08-17 | 2022-08-15 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale+OE | $19.28 | +36.5K | 891.6K | +4% | +$704.1K |
| D | 2022-08-17 | 2022-08-15 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +37.5K | 929.1K | +4% | +$18.8K |
| D | 2022-08-17 | 2022-08-15 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $19.49 | -963 | 928.1K | -0.1% | -$18.8K |
| D | 2022-08-10 | 2022-08-08 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $19.13 | -981 | 891.6K | -0.1% | -$18.8K |
| D | 2022-08-10 | 2022-08-08 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +37.5K | 892.6K | +4% | +$18.8K |
| 2022-05-31 | 2022-05-27 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale | $15.00 | -36.1K | 855.1K | -4% | -$542.2K | |
| D | 2022-05-20 | 2022-05-18 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $13.89 | -1,350 | 891.2K | -0.2% | -$18.8K |
| D | 2022-05-20 | 2022-05-18 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $0.5 | +37.5K | 892.6K | +4% | +$18.8K |
| DM | 2022-03-11 | 2022-03-09 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | S - Sale+OE | $82.09 | -12.3K | 308.4K | -4% | -$1.01M |
| D | 2022-03-11 | 2022-03-09 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $1.50 | +12.3K | 309.6K | +4% | +$18.4K |
| D | 2022-03-04 | 2022-03-02 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | M - OptEx | $1.50 | +12.5K | 297.5K | +4% | +$18.8K |
| D | 2022-03-04 | 2022-03-02 | ACMR | ACM Research, Inc. | Dun Haiping | Dir | F - Tax | $81.46 | -231 | 297.3K | -0.1% | -$18.8K |
Purchase Sale Sale after option exercise All abbreviations