UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM SD
SPECIALIZED DISCLOSURE REPORT
Proto Labs, Inc.
(Exact name of the registrant as specified in its charter)
| Minnesota | 001-35435 | 41-1939628 | ||||||||||||
| (State or other jurisdiction of incorporation or organization) | (Commission File Number) | (IRS Employer Identification No.) | ||||||||||||
| 5540 Pioneer Creek Drive Maple Plain, Minnesota | 55359 | |||||||
| (Address of principal executive offices) | (Zip code) | |||||||
| Daniel Schumacher (763) 479-3680 | ||||||||
| (Name and telephone number, including area code, of the person to contact in connection with this report.) | ||||||||
Check the appropriate box to indicate the rule pursuant to which this Form is being submitted, and provide the period to which the information in this Form applies:
| þ | Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2025. | |||||||
| ☐ | Rule 13q-1 under the Securities Exchange Act (17 CFR 240.13q-1) for the fiscal year ended . | |||||||
Section 1 - Conflict Minerals Disclosure
| Item 1.01. | Conflict Minerals Disclosure and Report | ||||
Conflict Minerals Disclosure
Proto Labs, Inc. (the “Company” or “our”) has filed a Conflict Minerals Report for the reporting period from January 1, 2025 to December 31, 2025 (the “2025 Conflict Minerals Report”), which is referenced in Item 1.02 below, filed as an exhibit to this Form SD and also publicly available on our website at www.protolabs.com in the "Investors" section (under the "About Us" caption) at the "Governance Documents" section (under the "Governance" caption). The content of any referenced website is not incorporated by reference into and should not be considered part of this Form SD.
| Item 1.02. | Exhibit | ||||
A copy of the Company’s 2025 Conflict Minerals Report is filed as Exhibit 1.01 attached to this Form SD.
Section 2 - Resource Extraction Issuer Disclosure
| Item 2.01. | Resource Extraction Issuer Disclosure Report | ||||
Not applicable.
Section 3 - Exhibits
| Item 3.01. | Exhibits | ||||
| Exhibit | Description | |||||||
| 1.01 | ||||||||
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| Proto Labs, Inc. | ||||||||||||||
| Date: | May 28, 2026 | By: | /s/ Daniel Schumacher | |||||||||||
| Daniel Schumacher | ||||||||||||||
| Chief Financial Officer | ||||||||||||||