Amplitude, Inc. (AMPL) has 8 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 1 sales totalling $3.9M. Most recent filing: Sept. 9, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
|---|---|---|---|---|---|---|
| Sept. 9, 2026 filed Sept. 4, 2026 | Crook Nathaniel Glenn Chief Commercial Officer | −$3,897,750 | 300,000 | −16% | Yes | |
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| Aug. 18, 2026 filed Aug. 17, 2026 | Liu Curtis Chief Technology Officer | $702,030 | 53,878 | −5% | No | |
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| Aug. 18, 2026 filed Aug. 17, 2026 | Skates Spenser CEO and President | $682,368 | 52,369 | −4% | No | |
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| Aug. 18, 2026 filed Aug. 17, 2026 | Crook Nathaniel Glenn Chief Commercial Officer | $1,425,065 | 109,368 | −5% | No | |
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| Aug. 18, 2026 filed Aug. 17, 2026 | Casey Andrew Chief Financial Officer | $948,766 | 72,814 | −5% | No | |
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Showing the 5 most recent of 8 filings in the last 90 days.
Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
Real-time Telegram alerts the moment a Form 4 is filed. Filings shown here are delayed by 72 hours.
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