InsiderTrades

Form 4 for AMPL Amplitude, Inc.

Accepted 2025-08-19 00:00:00 ET · period of report 2025-08-15 · accession 0001562180-25-005896 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
DT 2025-08-19 2025-08-15 AMPL Schultz Erica Dir M - OptEx $4.19 +7,500 114.9K +7% +$31.4K
DT 2025-08-19 2025-08-15 AMPL Schultz Erica Dir S - Sale+OE $11.46 -7,500 107.4K -7% -$86.0K
DT 2025-08-19 2025-08-15 AMPL Schultz Erica Dir M - OptEx $4.19 -7,500 89.5K -8% -$31.4K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Class A Common Stock 2025-08-15 M A 7,500 $4.19 114,906 D — —
2 Common Class A Common Stock 2025-08-15 S D 7,500 $11.46 107,406 D — — (F1) The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 12, 2025. (F2) This transaction was executed in multiple trades at prices ranging from $11.3800 to $11.5400. 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.
3 Derivative Stock Option (Right to Buy) 2025-08-15 M D 7,500 $4.19 89,500 D $4.19 · — to 2030-12-15 7,500 Class A Common Stock (F3) The option is early exercisable. 1/48th of the shares subject to the option vest on each monthly anniversary measured from December 10, 2020 (the"Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested on the fourth anniversary of the VestingCommencement Date.