JoAnn Covington - Mar 10, 2022 Form 4 Insider Report for Proterra Inc (PTRA)

Role: Chief Legal Officer, Secy
Signature: /s/ Joshua Damm, Attorney-in-Fact
Stock symbol: PTRA
Transactions as of: Mar 10, 2022
Transactions value $: $0
Form type: 4
Date filed: 3/14/2022, 08:24 PM
Previous filing: Sep 7, 2021
Next filing: Sep 7, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PTRA	Common Stock	Award	$0	+103K	+367.14%	$0.00	131K	Mar 10, 2022	Direct	F1

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	PTRA	Employee Stock Option (right to buy)	Award	$0	+58.2K		$0.00	58.2K	Mar 10, 2022	Common Stock	58.2K	$7.18	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Certain of the shares are subject to forfeiture to the Issuer if underlying vesting conditions are not met.
F2	The stock option vests as to 25% of the total shares on March 10, 2023, and thereafter vests as to 25% of the total shares annually until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.