Bjoern Klaas - 13 Feb 2024 Form 4 Insider Report for Proto Labs Inc (PRLB)

Role: VP and Mng Director-PL Europe
Signature: /s/ W. Morgan Burns, Attorney-in-Fact
Issuer symbol: PRLB
Transactions as of: 13 Feb 2024
Net transactions value: -$58,358
Form type: 4
Filing time: 15 Feb 2024, 17:08:06 UTC
Previous filing: 15 Feb 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PRLB	Common Stock	Tax liability	$58,358	-1,741	-9.6%	$33.52	16,333	13 Feb 2024	Direct
transaction	PRLB	Common Stock	Award	$0	+6,713	+41%	$0.000000	23,046	13 Feb 2024	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	PRLB	Employee Stock Option (right to buy)	Award	$0	+6,182		$0.000000	6,182	13 Feb 2024	Common Stock	6,182	$33.52	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Restricted Stock Units that vest as follows: 25% of shares subject to the award will vest on February 13, 2025, and on each February 13th thereafter until all shares subject to the award are fully vested.
F2	25% of shares subject to the award will vest on February 13, 2025, and on each February 13th thereafter until all shares subject to the award are fully vested.