Archie C. Black - 23 May 2025 Form 4 Insider Report for Proto Labs Inc (PRLB)

Role: Director
Signature: /s/ W. Morgan Burns, Attorney-in-Fact
Issuer symbol: PRLB
Transactions as of: 23 May 2025
Net transactions value: $0
Form type: 4
Filing time: 28 May 2025, 18:04:48 UTC
Previous filing: 01 Apr 2025
Next filing: 01 Jul 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Black Archie C.	Director	5540 PIONEER CREEK DRIVE, MAPLE PLAIN	/s/ W. Morgan Burns, Attorney-in-Fact	28 May 2025	0001489095

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PRLB	Common Stock	Award	$0	+3,939	+18%	$0.000000	26,218	23 May 2025	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	Deferred stock units that vest in full on the first anniversary of the grant date or the date but must be retained by the reporting person until the completion of the reporting person's service on the Company's Board of Directors.
F2	Reporting Person's beneficial ownership amount has been increased by 1,565 shares of common stock as a result of a reconciliation of his direct holdings against the amount set forth in his prior Form 4 filed on May 24, 2024.