As of the latest Form 4 filed Jul 7, 2026.
What Amplitude Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 26 most recent filings for AMPL.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-07 | 2026-07-05 | Tzuo Tien Director | AAward | +1.52K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-07-07 | 2026-07-05 | Schultz Erica Director | AAward | +1.66K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | Wong Catherine Director | SSale | −7.45K | $6.79 | $50.6K | Yes (planned) | Form 4 ↗ |
| 2026-06-11 | 2026-06-09 | Wong Catherine Director | AAward | +24.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-09 | Grady Patrick W Director | AAward | +24.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-09 | Schultz Erica Director | AAward | +24.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-09 | Gill Ronald S Director | AAward | +24.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-09 | Whitehurst James M Director | AAward | +24.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-03 | 2026-06-01 | Liu Curtis Chief Technology Officer | SSale | −22.2K | $8.03 | $178K | Yes (planned) | Form 4 ↗ |
| 2026-05-19 | 2026-05-15 | Crook Nathaniel Glenn Chief Commercial Officer | FTax | −101K | $6.06 | $614K | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-15 | Casey Andrew Chief Financial Officer | FTax | −64.9K | $6.06 | $393K | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-15 | Liu Curtis Chief Technology Officer | FTax | −40.3K | $6.06 | $244K | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-15 | Skates Spenser CEO and President | FTax | −39.6K | $6.06 | $240K | No | Form 4 ↗ |
| 2026-05-06 | 2026-05-04 | Liu Curtis Chief Technology Officer | SSale | −17.6K | $8.12 | $143K | Yes (planned) | Form 4 ↗ |
| 2026-04-22 | 2026-04-21 | Skates Spenser CEO and President | AAward | +1.32M | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-17 | 2026-04-15 | Crook Nathaniel Glenn Chief Commercial Officer | AAward | +975K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-17 | 2026-04-15 | Crook Nathaniel Glenn, Chief Commercial Officer | AAward | +279K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-17 | 2026-04-15 | Casey Andrew Chief Financial Officer | AAward | +432K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-17 | 2026-04-15 | Liu Curtis Chief Technology Officer | AAward | +418K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-07 | 2026-04-05 | Tzuo Tien Director | AAward | +1.54K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-07 | 2026-04-05 | Schultz Erica Director | AAward | +1.68K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-10 | 2026-03-06 | Liu Curtis Chief Technology Officer | SSale | −33.2K | $8.01 | $266K | Yes (planned) | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Liu Curtis Chief Technology Officer | SSale | −30.1K | $8.00 | $241K | Yes (planned) | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | Casey Andrew Chief Financial Officer | FTax | −39.4K | $6.34 | $250K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | Liu Curtis Chief Technology Officer | FTax | −26.7K | $6.34 | $169K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | HANSEN THOMAS NEERGAARD President | FTax | −69.1K | $6.34 | $438K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also AMPL’s full analysis or the market-wide insider trading feed. The tabs above jump to AMPL’s other SEC data.
Source: SEC Form 4 filings for AMPL, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.