Amplitude, Inc (AMPL) insider trading
Every open-market stock purchase and sale by Amplitude, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Nathaniel Glenn Crook (C-suite exec) and 1 other sold $6.2M in the last 90 days.
- Last insider buy: Andrew Casey (CFO), $300K, 11 months ago.
Last 12 months: insiders bought $300K (1 buy) and sold $12.5M (14 sales). Last close $12.59 on Sep 11, 2026.
Recent AMPL insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 10, 2026 | Spenser Skates (CEO) | Sold | $2.3M |
| Sep 10, 2026 | Spenser Skates (CEO) | Bought (not open market) | — |
| Sep 4, 2026 | Nathaniel Glenn Crook (C-suite exec) | Sold | $3.9M |
| Aug 17, 2026 | Nathaniel Glenn Crook (C-suite exec) | Sold (not open market) | $1.4M |
| Aug 17, 2026 | Andrew Casey (CFO) | Sold (not open market) | $949K |
| Aug 17, 2026 | Curtis Liu (CTO) | Sold (not open market) | $702K |
| Aug 17, 2026 | Spenser Skates (CEO) | Sold (not open market) | $682K |
| Jul 8, 2026 | Curtis Liu (CTO) | Bought (not open market) | — |
| Jul 5, 2026 | Tien Tzuo (Insider) | Bought (not open market) | — |
| Jul 5, 2026 | Erica Schultz (Insider) | Bought (not open market) | — |
| Jun 12, 2026 | Catherine Wong (Insider) | Sold | $50.6K |
| Jun 9, 2026 | James M Whitehurst (Insider) | Bought (not open market) | — |
| Jun 9, 2026 | Ronald S Gill (Insider) | Bought (not open market) | — |
| Jun 9, 2026 | Catherine Wong (Insider) | Bought (not open market) | — |
| Jun 9, 2026 | Patrick W Grady (Insider) | Bought (not open market) | — |
| Jun 9, 2026 | Erica Schultz (Insider) | Bought (not open market) | — |
| Jun 1, 2026 | Curtis Liu (CTO) | Sold | $183K |
| Jun 1, 2026 | Curtis Liu (CTO) | Sold | $178K |
| May 15, 2026 | Nathaniel Glenn Crook (C-suite exec) | Sold (not open market) | $614K |
| May 15, 2026 | Andrew Casey (CFO) | Sold (not open market) | $393K |
| May 15, 2026 | Curtis Liu (CTO) | Sold (not open market) | $244K |
| May 15, 2026 | Spenser Skates (CEO) | Sold (not open market) | $240K |
| May 4, 2026 | Curtis Liu (CTO) | Sold | $143K |
| Apr 21, 2026 | Spenser Skates (CEO) | Bought (not open market) | — |
| Apr 15, 2026 | Nathaniel Glenn Crook (C-suite exec) | Bought (not open market) | — |
Who's trading AMPL
- Spenser Skates, CEO: sold $7.2M (4 sales), last Sep 10, 2026
- Nathaniel Glenn Crook, C-suite exec: sold $3.9M (1 sale), last Sep 4, 2026
- Curtis Liu, CTO: sold $1M (5 sales), last Aug 17, 2026
- Andrew Casey, CFO: bought $300K (1 buy), last Aug 17, 2026
- Tien Tzuo, Insider: other filings, last Jul 5, 2026
- Erica Schultz, Insider: sold $312K (3 sales), last Jul 5, 2026
- Catherine Wong, Insider: sold $50.6K (1 sale), last Jun 12, 2026
- Patrick W Grady, Insider: other filings, last Jun 9, 2026
- Ronald S Gill, Insider: other filings, last Jun 9, 2026
- James M Whitehurst, Insider: other filings, last Jun 9, 2026
- Thomas Neergaard Hansen, President: other filings, last Feb 15, 2026
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