Dun Haiping
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Dun Haiping. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| ACMR | Gift | 755,090 | — | — | Nov 12, 2025 | |
| ACMR | Sale | 2,456 | $28.32 | $69,554 | Mar 14, 2025 | |
| ACMR | Sale | 15,001 | $26.54 | $398,127 | Mar 10, 2025 | |
| ACMR | Tax Withholding | 482 | $25.94 | $12,503 | Mar 3, 2025 | |
| ACMR | Sale | 19,058 | $17.43 | $332,181 | Nov 29, 2024 | |
| ACMR | Sale | 15,000 | $19.12 | $286,800 | Nov 22, 2024 | |
| ACMR | Option Exercise | 35,000 | $0.50 | $17,500 | Nov 14, 2024 | |
| ACMR | Sale | 19,097 | $18.08 | $345,274 | Aug 29, 2024 | |
| ACMR | Sale | 15,000 | $19.85 | $297,750 | Aug 22, 2024 | |
| ACMR | Option Exercise | 35,000 | $0.50 | $17,500 | Aug 14, 2024 | |
| ACMR | Gift | 100,000 | — | — | Jun 27, 2024 | |
| ACMR | Sale | 19,239 | $22.63 | $435,379 | May 29, 2024 | |
| ACMR | Sale | 15,000 | $22.88 | $343,200 | May 22, 2024 | |
| ACMR | Option Exercise | 35,000 | $0.50 | $17,500 | May 14, 2024 | |
| ACMR | Sale | 3,557 | $28.34 | $100,805 | Mar 14, 2024 | |
| ACMR | Sale | 15,000 | $30.36 | $455,400 | Mar 8, 2024 | |
| ACMR | Option Exercise | 35,000 | $0.50 | $17,500 | Mar 1, 2024 | |
| ACMR | Sale | 18,984 | $17.25 | $327,474 | Nov 29, 2023 | |
| ACMR | Sale | 15,000 | $17.66 | $264,900 | Nov 22, 2023 | |
| ACMR | Tax Withholding | 1,016 | $17.23 | $17,506 | Nov 14, 2023 | |
| ACMR | Sale | 32,098 | $13.85 | $444,557 | Aug 22, 2023 | |
| ACMR | Sale | 37,500 | $10.00 | $375,000 | Jun 1, 2023 | |
| ACMR | Option Exercise | 37,500 | $0.50 | $18,750 | May 22, 2023 | |
| ACMR | Sale | 37,500 | $12.06 | $452,250 | Mar 16, 2023 | |
| ACMR | Tax Withholding | 1,504 | $12.47 | $18,755 | Mar 9, 2023 | |
| ACMR | Sale | 35,327 | $8.43 | $297,807 | Nov 30, 2022 | |
| ACMR | Tax Withholding | 2,173 | $8.63 | $18,753 | Nov 22, 2022 | |
| ACMR | Option Exercise | 37,500 | $0.50 | $18,750 | Nov 14, 2022 | |
| ACMR | Sale | 36,537 | $16.10 | $588,246 | Aug 22, 2022 | |
| ACMR | Tax Withholding | 963 | $19.49 | $18,769 | Aug 15, 2022 | |
| ACMR | Option Exercise | 37,500 | $0.50 | $18,750 | Aug 8, 2022 | |
| ACMR | Sale | 36,150 | $15.00 | $542,250 | May 27, 2022 | |
| ACMR | Option Exercise | 37,500 | $0.50 | $18,750 | May 18, 2022 | |
| ACMR | Sale | 1,200 | $80.48 | $96,576 | Mar 9, 2022 | |
| ACMR | Tax Withholding | 231 | $81.46 | $18,817 | Mar 2, 2022 | |
| ACMR | Disposition | 28,661 | $13.20 | $378,325 | Aug 23, 2019 |