Proto Labs Inc.

PRLB·NYSE·$73.94Share Price as of 11/2·$2BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/29/26 10-QQ2 ended 06/30/2607/31/26 10-QQ1 ended 03/31/2605/01/26 10-KFY 202502/20/26 10-QQ3 ended 09/30/2510/31/25

Disclosures

8-KCurrent report10/29/26 8-KCurrent report08/24/26 8-KCurrent report07/31/26 8-KCurrent report05/20/26 8-KCurrent report05/07/26

Prospectuses and Registrations

S-8Registration of securities for employees07/31/26 S-8Registration of securities for employees05/27/25 S-8Registration of securities for employees05/27/25 S-8Registration of securities for employees08/02/24 S-8Registration of securities for employees08/04/23

Proxies

DEF 14ADefinitive proxy04/08/26 DEFA14AAdditional proxy materials04/08/26 DEF 14ADefinitive proxy04/09/25 DEFA14AAdditional proxy materials04/09/25 DEF 14ADefinitive proxy04/12/24

Ownership

144Proposed sale of securities09/25/26 Form 4Insider transaction09/25/26 144Proposed sale of securities09/24/26 144Proposed sale of securities09/24/26 Form 4Insider transaction09/18/26

Other

SDConflict Minerals disclosure05/28/26 ARSAnnual report to shareholders04/08/26 SDConflict Minerals disclosure05/29/25 ARSAnnual report to shareholders04/09/25 UPLOADLetter from the SEC12/12/24