AMPL Amplitude, Inc.
Amplitude, Inc. (AMPL) Insider Activity
What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.
How much of that selling was preplanned? 100% planned / 0% discretionary
Largest single sale: $3.9M.
Where they traded
Last open-market purchase: November 7, 2025 — 1.0 years ago, by Casey Andrew .
Recent open-market activity
| Date | Insider | Role | Action | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|---|
| Skates Spenser 2 fills | CEO and President | Sell 10b5-1 | 61 | $18.12 | $1.1K | 32 −65.6% of holding | |
| Skates Spenser | CEO and President | Sell 10b5-1 | 901 | $17.46 | $15.7K | None left | |
| Skates Spenser | CEO and President | Sell 10b5-1 | 6,651 | $17.53 | $116.6K | None left | |
| Skates Spenser 2 fills | CEO and President | Sell 10b5-1 | 300 | $17.46 | $5.2K | 200 −60% of holding | |
| Skates Spenser | CEO and President | Sell 10b5-1 | 107,136 | $17.52 | $1.9M | None left | |
| Skates Spenser | CEO and President | Sell 10b5-1 | 70,087 | $14.52 | $1.0M | None left | |
| Skates Spenser | CEO and President | Sell 10b5-1 | 3,539 | $14.45 | $51.1K | None left | |
| Skates Spenser | CEO and President | Sell 10b5-1 | 1,374 | $14.45 | $19.9K | None left | |
| Skates Spenser | CEO and President | Sell 10b5-1 | 185,000 | $12.30 | $2.3M | None left | |
| Crook Nathaniel Glenn | Chief Commercial Officer | Sell 10b5-1 | 300,000 | $12.99 | $3.9M | 1,622,696 −15.6% of holding |
Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.