AMPLITUDE INC CLASS A (AMPL) — insider trading
Information Technology · NASDAQ
AMPLITUDE INC CLASS A (AMPL) has 43 reported SEC Form 4 insider transactions in our data, including 9 open-market sales among the most recent 43 (latest 2026-10-05).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-10-05 | Schultz Erica | Director | Grant / award / vesting | 892 | — | $0 | Form 4 |
| 2026-10-05 | Tzuo Tien | Director | Grant / award / vesting | 818 | — | $0 | Form 4 |
| 2026-10-02 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Conversion of derivative (derivative) | 70,087 | — | $0 | Form 4 |
| 2026-10-02 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Open-market sale | 70,087 | $14.52 | $1.02M | Form 4 |
| 2026-10-02 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Conversion of derivative | 70,087 | — | $0 | Form 4 |
| 2026-10-01 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Conversion of derivative (derivative) | 3,539 | — | $0 | Form 4 |
| 2026-10-01 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Open-market sale | 3,539 | $14.45 | $51.1K | Form 4 |
| 2026-10-01 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Conversion of derivative | 3,539 | — | $0 | Form 4 |
| 2026-09-30 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Conversion of derivative (derivative) | 1,374 | — | $0 | Form 4 |
| 2026-09-30 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Open-market sale | 1,374 | $14.45 | $19.9K | Form 4 |
| 2026-09-30 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Conversion of derivative | 1,374 | — | $0 | Form 4 |
| 2026-09-10 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Conversion of derivative (derivative) | 185,000 | — | $0 | Form 4 |
| 2026-09-10 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Open-market sale | 185,000 | $12.30 | $2.28M | Form 4 |
| 2026-09-10 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Conversion of derivative | 185,000 | — | $0 | Form 4 |
| 2026-09-04 | Crook Nathaniel Glenn | Officer (Chief Commercial Officer) | Open-market sale | 300,000 | $12.99 | $3.90M | Form 4 |
| 2026-08-17 | Casey Andrew | Officer (Chief Financial Officer) | Shares withheld for taxes / exercise cost | 72,814 | $13.03 | $948.8K | Form 4 |
| 2026-08-17 | Crook Nathaniel Glenn | Officer (Chief Commercial Officer) | Shares withheld for taxes / exercise cost | 109,368 | $13.03 | $1.43M | Form 4 |
| 2026-08-17 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Shares withheld for taxes / exercise cost | 52,369 | $13.03 | $682.4K | Form 4 |
| 2026-08-17 | Liu Curtis | Director, Officer (Chief Technology Officer), 10% owner | Shares withheld for taxes / exercise cost | 53,878 | $13.03 | $702.0K | Form 4 |
| 2026-07-08 | Liu Curtis | Director, Officer (Chief Technology Officer), 10% owner | Bona fide gift (derivative) | 175,000 | — | $0 | Form 4 |
| 2026-07-08 | Liu Curtis | Director, Officer (Chief Technology Officer), 10% owner | Bona fide gift (derivative) | 175,000 | — | $0 | Form 4 |
| 2026-07-05 | Schultz Erica | Director | Grant / award / vesting | 1,659 | — | $0 | Form 4 |
| 2026-07-05 | Tzuo Tien | Director | Grant / award / vesting | 1,521 | — | $0 | Form 4 |
| 2026-06-12 | Wong Catherine | Director | Open-market sale | 7,453 | $6.79 | $50.6K | Form 4 |
| 2026-06-09 | Grady Patrick W | Director, 10% owner | Grant / award / vesting | 24,857 | — | $0 | Form 4 |
| 2026-06-09 | Schultz Erica | Director | Grant / award / vesting | 24,857 | — | $0 | Form 4 |
| 2026-06-09 | Gill Ronald S | Director | Grant / award / vesting | 24,857 | — | $0 | Form 4 |
| 2026-06-09 | Wong Catherine | Director | Grant / award / vesting | 24,857 | — | $0 | Form 4 |
| 2026-06-09 | Whitehurst James M | Director | Grant / award / vesting | 24,857 | — | $0 | Form 4 |
| 2026-06-01 | Liu Curtis | Director, Officer (Chief Technology Officer), 10% owner | Open-market sale | 22,786 | $8.03 | $182.9K | Form 4/A |
| 2026-06-01 | Liu Curtis | Director, Officer (Chief Technology Officer), 10% owner | Open-market sale | 22,201 | $8.03 | $178.2K | Form 4 |
| 2026-05-15 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Shares withheld for taxes / exercise cost | 39,562 | $6.06 | $239.7K | Form 4 |
| 2026-05-15 | Casey Andrew | Officer (Chief Financial Officer) | Shares withheld for taxes / exercise cost | 64,872 | $6.06 | $393.1K | Form 4 |
| 2026-05-15 | Crook Nathaniel Glenn | Officer (Chief Commercial Officer) | Shares withheld for taxes / exercise cost | 101,292 | $6.06 | $613.8K | Form 4 |
| 2026-05-15 | Liu Curtis | Director, Officer (Chief Technology Officer), 10% owner | Shares withheld for taxes / exercise cost | 40,279 | $6.06 | $244.1K | Form 4 |
| 2026-05-04 | Liu Curtis | Director, Officer (Chief Technology Officer), 10% owner | Open-market sale | 17,586 | $8.12 | $142.9K | Form 4 |
| 2026-04-21 | Skates Spenser | Director, Officer (CEO and President), 10% owner | Grant / award / vesting | 1,323,119 | — | $0 | Form 4 |
| 2026-04-15 | Casey Andrew | Officer (Chief Financial Officer) | Grant / award / vesting | 431,754 | — | $0 | Form 4 |
| 2026-04-15 | Crook Nathaniel Glenn | Officer (Chief Commercial Officer) | Grant / award / vesting | 974,930 | — | $0 | Form 4 |
| 2026-04-15 | Crook Nathaniel Glenn | Officer (Chief Commercial Officer) | Grant / award / vesting | 278,551 | — | $0 | Form 4 |
| 2026-04-15 | Liu Curtis | Director, Officer (Chief Technology Officer), 10% owner | Grant / award / vesting | 417,827 | — | $0 | Form 4 |
| 2026-04-05 | Tzuo Tien | Director | Grant / award / vesting | 1,538 | — | $0 | Form 4 |
| 2026-04-05 | Schultz Erica | Director | Grant / award / vesting | 1,678 | — | $0 | Form 4 |
Ask the chat about AMPL's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: AMPLITUDE INC CLASS A (AMPL).
Last updated 2026-10-05 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.