Liu Curtis
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Liu Curtis. 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 |
|---|---|---|---|---|---|---|
| AMPL | Chief Technology Officer | Tax Withholding | 36,092 | $10.73 | $387,267 | Nov 15, 2025 |
| AMPL | Chief Technology Officer | Tax Withholding | 34,301 | $11.47 | $393,432 | Aug 15, 2025 |
| AMPL | Chief Technology Officer | Tax Withholding | 25,533 | $12.14 | $309,971 | May 15, 2025 |
| AMPL | Chief Technology Officer | Award / Grant | 852,878 | — | — | Apr 25, 2025 |
| AMPL | Chief Technology Officer | Option Exercise | 23,866 | $4.19 | $99,999 | Feb 1, 2024 |
| AMPL | Chief Technology Officer | C | 23,866 | — | — | Feb 1, 2023 |
| AMPL | Chief Technology Officer | C | 70,000 | — | — | Feb 17, 2022 |
| AMPL | Chief Technology Officer | Sale | 142,000 | $50.91 | $7,229,220 | Sep 28, 2021 |
| AMPL | Chief Technology Officer | C | 380,000 | — | — | Sep 21, 2021 |