SEC Form 4 · accession 0001866692-26-000018
Amplitude, Inc. · AMPL
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Spenser Skates
Officer — CEO and President · Director · 10% Owner
Period of report
Sep 10, 2026
Accepted (ET)
Sep 14, 2026 · 4:59 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001866692
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common StockF1 | Sep 10, 2026 | C | 185,000 | $0.00 | A | 185,000 | I | By Spouse |
| Class A Common StockF3 | Sep 10, 2026 | S | 185,000 | $12.3006 | D | 0 | I | By Spouse |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Class B Common StockF1 | — | Sep 10, 2026 | C | 185,000 | D | — | — | Class A Common Stock | 185,000 | 382,157 | I |
| Class B Common StockF1 | — | holding | — | — | — | — | — | Class A Common Stock | 5,342,146 | 5,342,146 | D |
Explanation of responses
- F1The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).
- F2The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person's spouse on June 11, 2026.
- F3This transaction was executed in multiple trades at prices ranging from $12.0300 to $12.5100. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.