Daniel Schumacher - May 23, 2022 Form 4 Insider Report for Proto Labs Inc (PRLB)

Role: Chief Financial Officer
Signature: /s/ W. Morgan Burns, Attorney-in-Fact
Stock symbol: PRLB
Transactions as of: May 23, 2022
Transactions value $: -$15,988
Form type: 4
Date filed: 9/1/2022, 07:03 PM
Previous filing: Jun 10, 2022
Next filing: Dec 5, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PRLB	Common Stock	Tax liability	-$16K	-350	-5%	$45.68	6.65K	May 23, 2022	Direct
transaction	PRLB	Common Stock	Award	$0	+2.23K	+33.56%	$0.00	8.89K	Aug 30, 2022	Direct	F1
transaction	PRLB	Common Stock	Award	$0	+6.15K	+69.25%	$0.00	15K	Aug 30, 2022	Direct	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
transaction	PRLB	Employee Stock Option (right to buy)	Award	$0	+2.29K		$0.00	2.29K	Aug 30, 2022	Common Stock	2.29K	$39.11	Direct	F3
transaction	PRLB	Employee Stock Option (right to buy)	Award	$0	+6.32K		$0.00	6.32K	Aug 30, 2022	Common Stock	6.32K	$39.11	Direct	F4
transaction	PRLB	Performance Stock Units	Award	$0	+3.08K		$0.00	3.08K	Aug 30, 2022	Common Stock	3.08K		Direct	F5

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

Explanation of Responses:

Id	Content
F1	The restricted stock units vest in four annual equal installments beginning on May 20, 2023.
F2	The restricted stock units vest in four annual equal installments beginning on February 13, 2023.
F3	The stock option vest as to 25% of the shares in four annual installments beginning on May 20, 2023.
F4	The stock option vest as to 25% of the shares in four annual installments beginning on February 13, 2023.
F5	Each performance stock unit represents a contingent right to receive one share of Proto Labs, Inc. common stock. The performance stock units vest upon Proto Labs, Inc. common stock achieving a specified price per share.