Kenison Michael R. 4

4 · Proto Labs Inc · Filed Nov 26, 2025

Form 4

Period: 2025-11-25

Chief Operations Officer

Transactions

Exercise/Conversion
Common Stock
2025-11-25$33.84/sh+3,048$103,144→ 31,946 total
Sale
Common Stock
2025-11-25$50.17/sh−3,048$152,931→ 28,898 total
Exercise/Conversion
Employee Stock Option (right to buy)
2025-11-25−3,048→ 4,664 total
Exercise: $33.84Exp: 2033-02-14→ Common Stock (3,048 underlying)

Footnotes (4)

[F1]Includes 57 shares of Common Stock of the issuer purchased on November 15, 2025 through the issuer's Employee Stock Purchase Plan program.
[F2]These shares were acquired and sold pursuant to Reporting Person's 10b5-1 plan adopted August 15, 2025.
[F3]Reflects the weighted average price of 3,048 shares of Common Stock of the issuer sold by the Reporting Person in multiple transactions on November 25, 2025 with sale prices ranging from $50.00 to $50.53 per share. The Reporting Person undertakes to provide upon request by U.S. Securities and Exchange Commission staff, the issuer, or a securityholder of the issuer full information regarding the number of shares sold at each separate price.
[F4]25% of shares subject to the award will vest on February 13, 2024, and on each February 13th thereafter until all shares subject to the award are fully vested.

Documents

1 file