Protolabs (NYSE:PRLB) announced today that it will issue its financial results for the third quarter of 2025 before the opening of the market on Friday, Oct. 31, 2025. Protolabs will host a conference call to discuss the results at 8:30 a.m. EDT on the same day. A simultaneous webcast of the call will be available via this link and at the investor relations section of the Protolabs website.

To access the live call, please dial 877-709-8150 or outside the U.S. dial 201-689-8354 at least 5 minutes prior to the 8:30 a.m. EDT start time. An audio replay will be available at the investor relations section of the Protolabs website beginning approximately two hours following the end of the conference call.

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Investor Relations Contacts:

Protolabs

Ryan Johnsrud, 612-225-4873

Manager, IR and Corporate Development

ryan.johnsrud@protolabs.com

Gateway Group, Inc.

949-574-3860

PRLB@gateway-grp.com

Media Contact:

Protolabs

Brent Renneke, 763-479-7704

Marketing Communications Manager

brent.renneke@protolabs.com

Protolabs Sets Conference Call to Discuss Third Quarter 2025 Financial Results