12 insiders reported 84 Form 4 transactions for Amplitude, Inc. (AMPL) over the past 18 months (most recent 2026-08-18). Recent activity: Skates Spenser (CEO and President) Sell 52,369 shares, Liu Curtis (Chief Technology Officer) Sell 53,878 shares, Casey Andrew (Chief Financial Officer) Sell 72,814 shares, Crook Nathaniel Glenn (Chief Commercial Officer) Sell 109,368 shares, Schultz Erica (Director) Buy 1,659 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | Skates Spenser | CEO and President | Sell | 52,369 | $682,368 |
| 2026-08-18 | Liu Curtis | Chief Technology Officer | Sell | 53,878 | $702,030 |
| 2026-08-18 | Casey Andrew | Chief Financial Officer | Sell | 72,814 | $948,766 |
| 2026-08-18 | Crook Nathaniel Glenn | Chief Commercial Officer | Sell | 109,368 | $1.4M |
| 2026-07-07 | Schultz Erica | Director | Buy | 1,659 | $0 |
| 2026-07-07 | Tzuo Tien | Director | Buy | 1,521 | $0 |
| 2026-06-16 | Liu Curtis | Chief Technology Officer | Sell | 22,786 | $182,878 |
| 2026-06-15 | Wong Catherine | Director | Sell | 7,453 | $50,580 |
| 2026-06-11 | Wong Catherine | Director | Buy | 24,857 | $0 |
| 2026-06-11 | Gill Ronald S | Director | Buy | 24,857 | $0 |
| 2026-06-11 | Schultz Erica | Director | Buy | 24,857 | $0 |
| 2026-06-11 | Grady Patrick W | Director | Buy | 24,857 | $0 |
| 2026-06-11 | Whitehurst James M | Director | Buy | 24,857 | $0 |
| 2026-06-03 | Liu Curtis | Chief Technology Officer | Sell | 22,201 | $178,183 |
| 2026-05-19 | Skates Spenser | CEO and President | Sell | 39,562 | $239,746 |
| 2026-05-19 | Liu Curtis | Chief Technology Officer | Sell | 40,279 | $244,091 |
| 2026-05-19 | Casey Andrew | Chief Financial Officer | Sell | 64,872 | $393,124 |
| 2026-05-19 | Crook Nathaniel Glenn | Chief Commercial Officer | Sell | 101,292 | $613,830 |
| 2026-05-06 | Liu Curtis | Chief Technology Officer | Sell | 17,586 | $142,877 |
| 2026-04-22 | Skates Spenser | CEO and President | Buy | 1.3M | $0 |
| 2026-04-17 | Liu Curtis | Chief Technology Officer | Buy | 417,827 | $0 |
| 2026-04-17 | Casey Andrew | Chief Financial Officer | Buy | 431,754 | $0 |
| 2026-04-17 | Crook Nathaniel Glenn | Chief Commercial Officer | Buy | 278,551 | $0 |
| 2026-04-17 | Crook Nathaniel Glenn | Chief Commercial Officer | Buy | 974,930 | $0 |
| 2026-04-07 | Schultz Erica | Director | Buy | 1,678 | $0 |
Source: SEC Form 4 filings · as of 2026-08-18