Ninos Sarkis - 28 Sep 2021 Form 4 Insider Report for Amplitude, Inc. (AMPL)

Role: Chief Accounting Officer
Signature: /s/ Hoang Vuong, as Attorney-in-Fact for Ninos Sarkis
Issuer symbol: AMPL
Transactions as of: 28 Sep 2021
Net transactions value: -$824,580
Form type: 4
Filing time: 30 Sep 2021, 19:18:23 UTC
Previous filing: 21 Sep 2021
Next filing: 12 Oct 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMPL	Class A Common Stock	Options Exercise	$75,420	+18,000	+65%	$4.19	45,500	28 Sep 2021	Direct
transaction	AMPL	Class A Common Stock	Sale	$900,000	-18,000	-40%	$50.00	27,500	28 Sep 2021	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AMPL	Stock Option (Right to Buy)	Options Exercise	$0	-18,000	-19%	$0.000000	77,464	28 Sep 2021	Class A Common Stock	18,000	$4.19	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	1/48th of the shares subject to the option vest on each monthly anniversary measured from October 26, 2020 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date.