Bernardo Parlange - 20 May 2026 Form 4 Insider Report for Proto Labs Inc (PRLB)

Reporting relationship: Chief Commercial Officer
Issuer ticker: PRLB
Reported as of: 20 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 22 May 2026, 16:12:16 UTC
Prior SEC filing: 22 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Kareem S. Tawfic, Attorney-in-Fact

Key filing fact

Bernardo Parlange filed Form 4 for Proto Labs Inc (PRLB) on 22 May 2026.

Key facts

This page summarizes Bernardo Parlange's Form 4 filing for Proto Labs Inc (PRLB).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 22 May 2026, 16:12.

Change

Previous filing in this sequence was filed on 22 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002135514 Primary reporting owner

Parlange Bernardo

Relationship: Chief Commercial Officer
Address: 5540 PIONEER CREEK, MAPLE PLAIN
Signature: /s/ Kareem S. Tawfic, Attorney-in-Fact
Signature date: 22 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PRLB transaction

Common Stock

Award

Transaction value
Shares: +2,109
Change %
Price: $0.000000^*
Shares after: 2,109
Date: 20 May 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PRLB transaction Derivative

Employee Stock Option (right to buy)

Award

Transaction value
Shares: +3,789
Change %
Price: $0.000000^*
Shares after: 3,789
Date: 20 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 3,789
Exercise price: $71.13
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Restricted Stock Units that vest as follows: 25% of shares subject to the award will vest on May 20, 2027, and on each May 20th thereafter until all shares subject to the award are fully vested.

Footnote F2

25% of shares subject to the award will vest on May 20, 2027, and on each May 20th thereafter until all shares subject to the award are fully vested.