Amplitude, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Amplitude, Inc. (AMPL), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are AMPL insiders buying or selling?
In the last 12 months, Amplitude, Inc. insiders reported 1 open-market purchase ($299.8K) and 15 sales ($13.4M) — net selling of $13.1M. Since September 2021, Trabud has recorded 108 Form 4 filings for AMPL: 4 buys ($100.4M) and 104 sells ($385.5M).
Source: SEC EDGAR Form 4
What stands out
- The largest open-market purchase in the last 12 months was $299.8K by Andrew Casey (Chief Financial Officer) on Nov 12, 2025. SEC ↗
- The most recent open-market purchase was reported on Nov 12, 2025 (11 months ago).
Key Statistics (September 2021 – Oct 6, 2026)
Total Form 4 filings
108
SEC EDGAR
Insider filers
36
Insider buys (4)
$100.4M
Insider sells (104)
$385.5M
Insider sentiment
Net sellingNet insider flow of $285.1M in net selling since September 2021, and $13.1M in net selling over the last 12 months.
Recent AMPL insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Oct 6, 2026 | Spenser Skates | CEO and President | Sale | 70.1K | $14.52 | $1.0M | SEC ↗ |
| Oct 2, 2026 | Spenser Skates | CEO and President | Sale | 4.9K | $14.45 | $71.0K | SEC ↗ |
| Sep 14, 2026 | Spenser Skates | CEO and President | Sale | 185.0K | $12.30 | $2.3M | SEC ↗ |
| Sep 9, 2026 | Nathaniel Glenn Crook | Chief Commercial Officer | Sale | 300.0K | $12.99 | $3.9M | SEC ↗ |
| Jun 16, 2026 | Liu Curtis | Chief Technology Officer | Sale | 22.8K | $8.03 | $182.9K | SEC ↗ |
| Jun 15, 2026 | Catherine Wong | Director | Sale | 7.5K | $6.79 | $50.6K | SEC ↗ |
| Jun 3, 2026 | Liu Curtis | Chief Technology Officer | Sale | 22.2K | $8.03 | $178.2K | SEC ↗ |
| May 6, 2026 | Liu Curtis | Chief Technology Officer | Sale | 17.6K | $8.12 | $142.9K | SEC ↗ |
| Mar 10, 2026 | Liu Curtis | Chief Technology Officer | Sale | 33.2K | $8.01 | $265.8K | SEC ↗ |
| Mar 9, 2026 | Liu Curtis | Chief Technology Officer | Sale | 30.1K | $8.00 | $240.5K | SEC ↗ |
| Dec 30, 2025 | Spenser Skates | Chief Executive Officer | Sale | 100 | $12.00 | $1.2K | SEC ↗ |
| Dec 29, 2025 | Spenser Skates | Chief Executive Officer | Sale | 42.7K | $12.01 | $513.4K | SEC ↗ |
| Dec 17, 2025 | Erica Schultz | Director | Sale | 10.0K | $10.88 | $108.8K | SEC ↗ |
| Nov 19, 2025 | Erica Schultz | Director | Sale | 10.0K | $10.23 | $102.3K | SEC ↗ |
| Nov 13, 2025 | Spenser Skates | Chief Executive Officer | Sale | 400.0K | $10.99 | $4.4M | SEC ↗ |
| Nov 12, 2025 | Andrew Casey | Chief Financial Officer | Purchase | 30.0K | $9.99 | $299.8K | SEC ↗ |
| Oct 17, 2025 | Erica Schultz | Director | Sale | 10.0K | $10.12 | $101.2K | SEC ↗ |
| Sep 17, 2025 | Erica Schultz | Director | Sale | 10.0K | $11.06 | $110.6K | SEC ↗ |
| Aug 19, 2025 | Erica Schultz | Director | Sale | 7.5K | $11.46 | $86.0K | SEC ↗ |
| Jul 17, 2025 | Erica Schultz | Director | Sale | 7.5K | $12.56 | $94.2K | SEC ↗ |
| Jun 13, 2025 | Erica Schultz | Director | Sale | 26.4K | $12.49 | $329.7K | SEC ↗ |
| Jun 13, 2025 | Catherine Wong | Director | Sale | 8.5K | $12.49 | $106.2K | SEC ↗ |
| May 21, 2025 | Catherine Wong | Director | Sale | 3.5K | $11.75 | $41.3K | SEC ↗ |
| May 14, 2025 | Eric Vishria | Director | Sale | 10.0K | $12.00 | $120.0K | SEC ↗ |
| May 12, 2025 | Eric Vishria | Director | Sale | 25.0K | $10.15 | $253.7K | SEC ↗ |
Showing the 25 most recent of 108 Form 4 filings for Amplitude, Inc..
Most active AMPL insiders
- Catherine Wong18 filings
- Spenser Skates8 filings
- Eric Vishria7 filings
- Erica Schultz7 filings
- Liu Curtis6 filings
Ask anything about AMPL insider activity
Use Trabud's AI agent to query Amplitude, Inc.'s Form 4 history in plain English — "Show me AMPL CEO purchases this year" or compare it against any other ticker.
Open the AI agentAMPL insider trading FAQ
Are Amplitude, Inc. insiders buying or selling?
In the last 12 months, Amplitude, Inc. insiders reported 1 open-market purchase ($299.8K) and 15 sales ($13.4M) — net selling of $13.1M. Since September 2021, Trabud has recorded 108 Form 4 filings for AMPL: 4 buys ($100.4M) and 104 sells ($385.5M). Over the full record that is net selling of $285.1M.
How many insiders trade AMPL stock?
36 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Amplitude, Inc.. The most recent filing was accepted on Oct 6, 2026.
Where does Trabud get AMPL insider trading data?
All AMPL insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.