Wang David H
SEC CIK 1721580 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| ACMR | ACM Research, Inc. | See Remarks, Dir, 10% | 872.7K | — | $57.37M | 36 | 2023-09-04 | 2026-09-08 |
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 36
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMT | 2026-09-10 16:30 | 2026-09-08+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $1.00 | +140.0K | 872.7K | +19% | +$140.0K |
| DMT | 2026-09-10 16:30 | 2026-09-08+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale+OE | $75.93 | -140.0K | 802.7K | -15% | -$10.63M |
| DMT | 2026-06-05 16:30 | 2026-06-03+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $1.00 | +100.0K | 842.7K | +13% | +$100.0K |
| DMT | 2026-06-05 16:30 | 2026-06-03+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale+OE | $88.35 | -100.0K | 802.7K | -11% | -$8.84M |
| DMT | 2026-03-13 | 2026-03-11+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale+OE | $46.86 | -110.0K | 803.4K | -12% | -$5.15M |
| DMT | 2026-03-13 | 2026-03-11+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $1.00 | +110.0K | 852.7K | +15% | +$110.0K |
| DMT | 2025-12-05 | 2025-12-03+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale+OE | $33.55 | -130.0K | 802.7K | -14% | -$4.36M |
| DMT | 2025-12-05 | 2025-12-03+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $1.00 | +130.0K | 872.7K | +18% | +$130.0K |
| D | 2025-09-30 | 2025-09-08 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $1.00 | +130.0K | 802.7K | +19% | +$130.0K |
| DMT | 2025-09-05 | 2025-09-03+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale+OE | $26.61 | -130.0K | 676.7K | -16% | -$3.46M |
| DMT | 2025-09-05 | 2025-09-03+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $1.00 | +130.0K | 742.7K | +21% | +$130.0K |
| DMT | 2025-05-23 | 2025-05-21+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $1.00 | +130.0K | 732.7K | +22% | +$130.0K |
| DMT | 2025-05-23 | 2025-05-21+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale+OE | $23.15 | -130.0K | 672.7K | -16% | -$3.01M |
| MT | 2025-03-13 | 2025-03-11+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $27.02 | -131.2K | 710.2K | -16% | -$3.55M |
| D | 2025-03-05 | 2025-03-03 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $0.5 | +210.0K | 808.0K | +35% | +$105.0K |
| D | 2025-03-05 | 2025-03-03 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | F - Tax | $25.94 | -4,048 | 804.0K | -0.5% | -$105.0K |
| T | 2024-12-03 | 2024-11-29 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $17.44 | -56.2K | 598.0K | -9% | -$981.0K |
| MT | 2024-11-29 | 2024-11-26 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $17.89 | -56.2K | 663.7K | -8% | -$1.01M |
| T | 2024-11-26 | 2024-11-22 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $19.08 | -56.2K | 710.5K | -7% | -$1.07M |
| D | 2024-11-18 | 2024-11-14 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $0.5 | +270.0K | 774.0K | +54% | +$135.0K |
| D | 2024-11-18 | 2024-11-14 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | F - Tax | $18.59 | -7,262 | 766.8K | -0.9% | -$135.0K |
| MT | 2024-05-31 | 2024-05-29 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $22.62 | -86.1K | 504.0K | -15% | -$1.95M |
| MT | 2024-05-24 | 2024-05-22 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $22.81 | -90.0K | 635.1K | -12% | -$2.05M |
| D | 2024-05-16 | 2024-05-14 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | F - Tax | $23.02 | -3,910 | 680.1K | -0.6% | -$90.0K |
| D | 2024-05-16 | 2024-05-14 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $0.5 | +180.0K | 684.0K | +36% | +$90.0K |
| MT | 2024-03-15 | 2024-03-14 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $27.62 | -87.1K | 514.6K | -14% | -$2.41M |
| MT | 2024-03-12 | 2024-03-08 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $30.36 | -90.0K | 636.1K | -12% | -$2.73M |
| D | 2024-03-05 | 2024-03-01 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | F - Tax | $30.92 | -2,911 | 681.1K | -0.4% | -$90.0K |
| D | 2024-03-05 | 2024-03-01 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $0.5 | +180.0K | 684.0K | +36% | +$90.0K |
| MT | 2023-12-01 | 2023-11-29 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $17.14 | -84.8K | 504.0K | -14% | -$1.45M |
| MT | 2023-11-27 | 2023-11-22 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $17.68 | -90.0K | 633.8K | -12% | -$1.59M |
| D | 2023-11-16 | 2023-11-14 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | F - Tax | $17.23 | -5,224 | 678.8K | -0.8% | -$90.0K |
| D | 2023-11-16 | 2023-11-14 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $0.5 | +180.0K | 684.0K | +36% | +$90.0K |
| MT | 2023-09-14 | 2023-09-12+ | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | S - Sale | $17.87 | -175.1K | 589.1K | -23% | -$3.13M |
| D | 2023-09-06 | 2023-09-04 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | M - OptEx | $0.5 | +180.0K | 684.0K | +36% | +$90.0K |
| D | 2023-09-06 | 2023-09-04 | ACMR | ACM Research, Inc. | Wang David H | See Remarks, Dir, 10% | F - Tax | $18.43 | -4,884 | 679.1K | -0.7% | -$90.0K |
Purchase Sale Sale after option exercise All abbreviations