Daniel Schumacher - 25 Feb 2026 Form 4 Insider Report for Proto Labs Inc (PRLB)

Reporting relationship: Chief Financial Officer
Issuer ticker: PRLB
Reported as of: 25 Feb 2026
Net transaction value: -$31,566
SEC form: 4
Accepted by SEC: 27 Feb 2026, 16:16:37 UTC
Prior SEC filing: 18 Feb 2026
Next SEC filing: 22 May 2026
Source filing: View source filing
Reporting owner signature: /s/ W. Morgan Burns, Attorney-in-Fact

Key filing fact

Daniel Schumacher filed Form 4 for Proto Labs Inc (PRLB) on 27 Feb 2026.

Key facts

This page summarizes Daniel Schumacher's Form 4 filing for Proto Labs Inc (PRLB).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 27 Feb 2026, 16:16.

Change

Previous filing in this sequence was filed on 18 Feb 2026.
Current net transaction value: -$31,566.

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 0001894753 Primary reporting owner

Schumacher Daniel

Relationship: Chief Financial Officer
Address: 5540 PIONEER CREEK DRIVE, MAPLE PLAIN
Signature: /s/ W. Morgan Burns, Attorney-in-Fact
Signature date: 27 Feb 2026

Reported non-derivative transactions

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

PRLB transaction

Common Stock

Award

Transaction value: $0
Shares: +3,074
Change %: +7.2%
Price: $0.000000
Shares after: 45,778
Date: 25 Feb 2026
Ownership: Direct
Footnotes: F1

PRLB transaction

Common Stock

Tax liability

Transaction value: $31,566
Shares: -504
Change %: -1.1%
Price: $62.63
Shares after: 45,274
Date: 25 Feb 2026
Ownership: Direct

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: $0
Shares: +5,605
Change %
Price: $0.000000
Shares after: 5,605
Date: 25 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,605
Exercise price: $62.63
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 February 25, 2027, and on each February 25th thereafter until all shares subject to the award are fully vested.

Footnote F2

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