AMPL
Amplitude, Inc. · Technology · Market cap $2.2B
Insiders sold $7.3M net in the last 90 days ·2 sellers, 0 buyers· 5 of 5 sales under Rule 10b5-1 plans· latest Form 4 filed Oct 6, 2026
Insider Buying
$300K
reported purchases (SEC code P)
Insider Selling
$13.4M
reported sales (SEC code S)
Unique Insiders
6
in the rolling window
Latest filing
Oct 15, 2026
Skates Spenser
Amplitude, Inc. (AMPL) has 47 SEC Form 4 filings (58 transaction rows) in the rolling window, disclosed by 6 distinct insiders. Most recent filing: Oct 15, 2026.
Inside the rolling window, 6 insiders at Amplitude, Inc. reported 1 open-market purchase totaling $300K and 15 open-market sales totaling $13.4M. The most active filer is CEO and President Skates Spenser with 7 filings. Insiders have net sold $7.8M over the trailing 6 months. The most recent open-market filing is a sale of 70,087 shares by CEO and President Skates Spenser, dated Oct 2, 2026, worth $1.0M.
- Industry:Software - Application
- CEO:Spenser Skates
- Employees:795
- HQ:San Francisco, CA, US
- IPO:2021-09-28
| Source | |||||||
|---|---|---|---|---|---|---|---|
| CEO and President | Sale | 70,087 | $1.0M | Oct 6 | +15.4% | SEC ↗ | |
| CEO and President | Sale | 1,374 | $20K | Oct 2 | +17.6% | SEC ↗ | |
| CEO and President | Sale | 3,539 | $51K | Oct 2 | +17.6% | SEC ↗ | |
Skates SpenserFirst in 9 months | CEO and President | Sale | 185,000 | $2.3M | Sep 14 | +25.1% | SEC ↗ |
Crook Nathaniel GlennFirst filing | Chief Commercial Officer | Sale | 300,000 | $3.9M | Sep 9 | +37.8% | SEC ↗ |
| Chief Technology Officer | Sale | 44,987 | $361K | Jun 16 | +156.7% | SEC ↗ | |
Wong CatherineFirst filing | Director | Sale | 7,453 | $51K | Jun 15 | +149.6% | SEC ↗ |
| Chief Technology Officer | Sale | 17,586 | $143K | May 6 | +127.0% | SEC ↗ | |
| Chief Technology Officer | Sale | 33,201 | $266K | Mar 10 | +121.7% | SEC ↗ | |
Liu CurtisFirst filing | Chief Technology Officer | Sale | 30,061 | $241K | Mar 9 | — | SEC ↗ |
| Chief Executive Officer | Sale | 100 | $1K | Dec 30 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 42,743 | $513K | Dec 29 | — | SEC ↗ | |
| Director | Sale | 10,000 | $109K | Dec 17 | — | SEC ↗ | |
Schultz EricaFirst filing | Director | Sale | 10,000 | $102K | Nov 19 | — | SEC ↗ |
Skates SpenserFirst filing | Chief Executive Officer | Sale | 400,000 | $4.4M | Nov 13 | — | SEC ↗ |
Casey AndrewFirst filing | Chief Financial Officer | Purchase | 30,000 | $300K | Nov 12 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does AMPL have?
Amplitude, Inc. (AMPL) has 47 SEC Form 4 filings (58 transaction rows) in the rolling 365-day window, disclosed by 6 distinct insiders. Most recent filing: Oct 15, 2026.
When was the most recent SEC Form 4 filing for AMPL?
The most recent Form 4 filing for AMPL on Tracefour is dated Oct 15, 2026.
Who is the most active insider at AMPL?
The most active SEC Form 4 filer at AMPL in the rolling window is CEO and President Skates Spenser, with 7 filings.
What is the net insider flow at AMPL over the last 6 months?
Over the trailing 180 days, insiders at AMPL have net sold $7.8M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at AMPL in the current window?
Inside the rolling window, insiders at AMPL bought $300K and sold $13.4M based on SEC Form 4 filings.
Can I get alerts for AMPL insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Amplitude, Inc. (AMPL). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Amplitude, Inc. is in the Technology sector.