Joyce Gareth T. - 21 Oct 2021 Form 4 Insider Report for Proterra Inc

Role: President of Proterra Oper Co.
Signature: /s/ Karen Ruby, Attorney-in-Fact
Issuer symbol: N/A
Transactions as of: 21 Oct 2021
Net transactions value: $0
Form type: 4
Filing time: 25 Oct 2021, 19:24:22 UTC
Previous filing: 13 Oct 2021
Next filing: 15 Dec 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PTRA	Common Stock	Award	$0	+29,135		$0.000000	29,135	21 Oct 2021	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	+51,666		$0.000000	51,666	21 Oct 2021	Common Stock	51,666	$9.83	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 August 25, 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.