Suresh Krishna - 25 Feb 2026 Form 4 Insider Report for Proto Labs Inc (PRLB)

Reporting relationship: President and CEO, Director
Issuer ticker: PRLB
Reported as of: 25 Feb 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 27 Feb 2026, 16:16:58 UTC
Prior SEC filing: 06 Aug 2025
Next SEC filing: 27 May 2026
Source filing: View source filing
Reporting owner signature: /s/ W. Morgan Burns, Attorney-in-Fact

Key filing fact

Suresh Krishna filed Form 4 for Proto Labs Inc (PRLB) on 27 Feb 2026.

Key facts

This page summarizes Suresh Krishna's Form 4 filing for Proto Labs Inc (PRLB).
2 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 06 Aug 2025.
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 0001488151 Primary reporting owner

Krishna Suresh

Relationship: President and CEO, Director
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: +13,373
Change %: +74%
Price: $0.000000
Shares after: 31,394
Date: 25 Feb 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: $0
Shares: +24,383
Change %
Price: $0.000000
Shares after: 24,383
Date: 25 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 24,383
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.