Christopher L. Bailey - Oct 1, 2021 Form 3/A - Amendment Insider Report for Proterra Inc (PTRA)

Role: President, Powered & Energy
Signature: /s/ Luke Finn, Attorney-in-Fact
Stock symbol: PTRA
Transactions as of: Oct 1, 2021
Transactions value $: $0
Form type: 3/A - Amendment
Date filed: 12/1/2021, 06:34 PM
Date Of Original Report: Oct 19, 2021
Next filing: Mar 18, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	PTRA	Common Stock						31.8K	Oct 1, 2021	Direct	F1, F2

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
holding	PTRA	Employee Stock Option (Right to Buy)							Oct 1, 2021	Common Stock	89.3K	$10.01	Direct	F3, F4

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

Explanation of Responses:

Id	Content
F1	The shares were inadvertently omitted from Table I of the Form 3 originally filed by the reporting person.
F2	Certain of the shares are subject to forfeiture to the Issuer if underlying vesting conditions are not met.
F3	The option was inadvertently omitted from Table II of the original Form 3 filed by the reporting person.
F4	The stock option vests as of 1/48 of the total shares monthly beginning on May 20, 2021 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.