Updated Jul 16, 2026
Liu Curtis has filed 6 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $1.01M.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-16 | AMPL | Amplitude, Inc. | S — Open-market sale | 22.8K | $8.03 | $183K |
| 2026-06-03 | AMPL | Amplitude, Inc. | S — Open-market sale | 22.2K | $8.03 | $178K |
| 2026-05-19 | AMPL | Amplitude, Inc. | F — Tax withholding / forfeiture | 40.3K | $6.06 | $244K |
| 2026-05-06 | AMPL | Amplitude, Inc. | S — Open-market sale | 17.6K | $8.12 | $143K |
| 2026-04-17 | AMPL | Amplitude, Inc. | A — Grant or award | 417.8K | $0.00 | |
| 2026-03-10 | AMPL | Amplitude, Inc. | S — Open-market sale [10b5-1] | 33.2K | $8.01 | $266K |
| 2026-03-09 | AMPL | Amplitude, Inc. | S — Open-market sale [10b5-1] | 30.1K | $8.00 | $241K |
| 2026-02-17 | AMPL | Amplitude, Inc. | F — Tax withholding / forfeiture | 26.7K | $6.34 | $169K |
| 2025-08-15 | AMPL | Amplitude, Inc. | F — Tax withholding / forfeiture | 34.3K | $11.47 | $393K |
Liu Curtis is a corporate insider — currently tracked as Insider of Amplitude, Inc. (AMPL). InsiderAlpha tracks every SEC Form 4 filing in real time.
6 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 5 open-market sales ($1.01M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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