Julian R. Soell - May 25, 2022 Form 4 Insider Report for Proterra Inc (PTRA)

Role: President, Proterra Transit
Signature: /s/ Joshua Damm, Attorney-in-Fact
Stock symbol: PTRA
Transactions as of: May 25, 2022
Transactions value $: $0
Form type: 4
Date filed: 5/27/2022, 04:28 PM
Previous filing: May 2, 2022
Next filing: Mar 30, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PTRA	Common Stock	Award	$0	+213K		$0.00	213K	May 25, 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	Stock Option (right to buy)	Award	$0	+53K		$0.00	53K	May 25, 2022	Common Stock	53K	$5.82	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 May 2, 2022, 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.