Company · CIK 0001866692 · SIC 7372 — Services-Prepackaged Software · Nasdaq
Amplitude, Inc. · AMPL
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 10, 2026 SForm 4 → | Sep 14, 4:59 pm EDT | Spenser SkatesCEO and President, Director, 10% Owner | 185,000 | $12.30 | $2,275,611 | 0 | −100% | 10b5-1 |
| Sep 10, 2026 CForm 4 → | Sep 14, 4:59 pm EDT | Spenser SkatesCEO and President, Director, 10% Owner | 185,000 | — | — | 185,000 | — | 10b5-1 |
| Sep 4, 2026 SForm 4 → | Sep 9, 5:03 pm EDT | Nathaniel Glenn CrookChief Commercial Officer | 300,000 | $12.99 | $3,897,750 | 1,622,696 | −15.6% | 10b5-1 |
| Aug 17, 2026 FForm 4 → | Aug 18, 5:19 pm EDT | Curtis LiuChief Technology Officer, Director, 10% Owner | 53,878 | $13.03 | $702,030 | 950,316 | — | |
| Aug 17, 2026 FForm 4 → | Aug 18, 5:18 pm EDT | Spenser SkatesCEO and President, Director, 10% Owner | 52,369 | $13.03 | $682,368 | 1,231,188 | — | |
| Aug 17, 2026 FForm 4 → | Aug 18, 5:16 pm EDT | Nathaniel Glenn CrookChief Commercial Officer | 109,368 | $13.03 | $1,425,065 | 1,922,696 | — | |
| Aug 17, 2026 FForm 4 → | Aug 18, 5:14 pm EDT | Andrew CaseyChief Financial Officer | 72,814 | $13.03 | $948,766 | 1,363,338 | — | |
| Jul 5, 2026 AForm 4 → | Jul 7, 6:19 pm EDT | Tien TzuoDirector | 1,521 | — | — | 101,601 | — | |
| Jul 5, 2026 AForm 4 → | Jul 7, 6:18 pm EDT | Erica SchultzDirector | 1,659 | — | — | 143,100 | — | |
| Jun 12, 2026 SForm 4 → | Jun 15, 4:26 pm EDT | Catherine WongDirector | 7,453 | $6.79 | $50,580 | 111,462 | −6.27% | 10b5-1 |
| Jun 9, 2026 AForm 4 → | Jun 11, 4:42 pm EDT | James M WhitehurstDirector | 24,857 | — | — | 187,201 | — | |
| Jun 9, 2026 AForm 4 → | Jun 11, 4:42 pm EDT | Catherine WongDirector | 24,857 | — | — | 118,915 | — | |
| Jun 9, 2026 AForm 4 → | Jun 11, 4:42 pm EDT | Ronald S GillDirector | 24,857 | — | — | 99,535 | — | |
| Jun 9, 2026 AForm 4 → | Jun 11, 4:41 pm EDT | Erica SchultzDirector | 24,857 | — | — | 141,441 | — | |
| Jun 9, 2026 AForm 4 → | Jun 11, 4:21 pm EDT | Patrick W GradyDirector, 10% Owner | 24,857 | — | — | 85,806 | — | |
| Jun 1, 2026 SForm 4/A → | Jun 16, 5:15 pm EDT | Curtis LiuChief Technology Officer, Director, 10% Owner | 22,786 | $8.03 | $182,878 | 1,004,194 | −2.22% | 10b5-1 |
| Jun 1, 2026 SForm 4 → | Jun 3, 5:17 pm EDT | Curtis LiuChief Technology Officer, Director, 10% Owner | 22,201 | $8.03 | $178,183 | 1,004,779 | −2.16% | 10b5-1 |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 10, 2026 CForm 4 → | Sep 14, 4:59 pm EDT | Spenser SkatesCEO and President, Director, 10% Owner | 185,000 | — | — | 382,157 | — | 10b5-1 |
| Jul 8, 2026 GForm 4 → | Jul 10, 4:13 pm EDT | Curtis LiuChief Technology Officer, Director, 10% Owner | 350,000 | — | — | 175,000 | — |