AMPL (Amplitude, Inc. Class A Common Stock)
Insider Trading Activity
Every open-market purchase and sale reported by AMPL officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | Spenser Skates | CEO and President | F | — | — |
| 2026-08-18 | Nathaniel Glenn Crook | Chief Commercial Officer | F | — | — |
| 2026-08-18 | Andrew Casey | Chief Financial Officer | F | — | — |
| 2026-08-18 | Curtis Liu | Chief Technology Officer | F | — | — |
| 2026-07-10 | Curtis Liu | Chief Technology Officer | G | — | — |
| 2026-07-07 | Erica Schultz | Director | A | — | — |
| 2026-07-07 | Tien Tzuo | Director | A | — | — |
| 2026-06-16 | Curtis Liu | Chief Technology Officer | Sell | — | — |
| 2026-06-15 | Catherine Wong | Director | Sell | — | — |
| 2026-06-11 | James M Whitehurst | Director | A | — | — |
| 2026-06-11 | Ronald S Gill | Director | A | — | — |
| 2026-06-11 | Erica Schultz | Director | A | — | — |
| 2026-06-11 | Patrick W Grady | Director | A | — | — |
| 2026-06-11 | Catherine Wong | Director | A | — | — |
| 2026-06-03 | Curtis Liu | Chief Technology Officer | Sell | — | — |
| 2026-05-19 | Curtis Liu | Chief Technology Officer | F | — | — |
| 2026-05-19 | Spenser Skates | CEO and President | F | — | — |
| 2026-05-19 | Andrew Casey | Chief Financial Officer | F | — | — |
| 2026-05-19 | Nathaniel Glenn Crook | Chief Commercial Officer | F | — | — |
| 2026-05-06 | Curtis Liu | Chief Technology Officer | Sell | — | — |
| 2026-04-22 | Spenser Skates | CEO and President | A | — | — |
| 2026-04-17 | Andrew Casey | Chief Financial Officer | A | — | — |
| 2026-04-17 | Curtis Liu | Chief Technology Officer | A | — | — |
| 2026-04-17 | Nathaniel Glenn Crook | Chief Commercial Officer | A | — | — |
| 2026-04-07 | Tien Tzuo | Director | A | — | — |
| 2026-04-07 | Erica Schultz | Director | A | — | — |
| 2026-03-10 | Curtis Liu | Chief Technology Officer | Sell | — | — |
| 2026-03-09 | Curtis Liu | Chief Technology Officer | Sell | — | — |
| 2026-02-17 | Curtis Liu | Chief Technology Officer | F | — | — |
| 2026-02-17 | THOMAS NEERGAARD HANSEN | President | F | — | — |
| 2026-02-17 | Andrew Casey | Chief Financial Officer | F | — | — |
| 2026-01-07 | Tien Tzuo | Director | A | — | — |
| 2025-12-30 | Spenser Skates | Chief Executive Officer | MIXED | — | — |
| 2025-12-29 | Spenser Skates | Chief Executive Officer | MIXED | — | — |
| 2025-12-17 | Erica Schultz | Director | MIXED | — | — |
| 2025-11-19 | Erica Schultz | Director | MIXED | — | — |
| 2025-11-18 | Curtis Liu | Chief Technology Officer | F | — | — |
| 2025-11-18 | THOMAS NEERGAARD HANSEN | President | F | — | — |
| 2025-11-18 | Andrew Casey | Chief Financial Officer | F | — | — |
| 2025-11-13 | Spenser Skates | Chief Executive Officer | MIXED | — | — |
| 2025-11-12 | Andrew Casey | Chief Financial Officer | Buy | — | — |
| 2025-10-17 | Erica Schultz | Director | MIXED | — | — |
| 2025-10-07 | Tien Tzuo | Director | A | — | — |
| 2025-09-17 | Erica Schultz | Director | MIXED | — | — |
| 2025-08-19 | Curtis Liu | Chief Technology Officer | F | — | — |
| 2025-08-19 | THOMAS NEERGAARD HANSEN | President | F | — | — |
| 2025-08-19 | Erica Schultz | Director | MIXED | — | — |
| 2025-08-19 | Andrew Casey | Chief Financial Officer | F | — | — |
| 2025-08-06 | Spenser Skates | Chief Executive Officer | G | — | — |
| 2025-07-17 | Erica Schultz | Director | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Chief Technology Officer | 8,332,524 | — |
| — | 10%+ Owner | 5,610,451 | — |
| — | 10%+ Owner | 5,610,451 | — |
| — | 10%+ Owner | 3,465,221 | — |
| — | 10%+ Owner | 2,399,089 | — |
| — | 10%+ Owner | 2,063,459 | — |
| — | Chief Commercial Officer | 1,922,696 | — |
| — | President | 1,845,845 | — |
| — | 10%+ Owner | 1,526,430 | — |
| — | Chief Financial Officer | 1,363,338 | — |
| — | CEO and President | 1,231,288 | — |
| — | Chief Financial Officer | 833,853 | — |
| — | Chief Financial Officer | 814,274 | — |
| — | Director | 655,479 | — |
| — | 10%+ Owner | 570,809 | — |
| — | 10%+ Owner | 464,240 | — |
| — | Director | 394,333 | — |
| — | 10%+ Owner | 365,055 | — |
| — | 10%+ Owner | 287,023 | — |
| — | Chief Revenue Officer | 272,949 | — |
| — | 10%+ Owner | 235,201 | — |
| — | 10%+ Owner | 218,154 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the AMPL quote page; the site-wide leaderboard is on the insider transactions hub.