Proto Labs Inc SEC filings PRLB
Proto Labs Inc has 901 filings in SEC EDGAR's recent list, going back to Aug 18, 2008. Its latest annual report, Form ARS, was filed on Apr 8, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 29, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 29, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SD | Specialized disclosure (conflict minerals) | May 28, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 29, 2025 | — |
| UPLOAD | Letter from the SEC | Dec 12, 2024 | — |
| CORRESP | Letter to the SEC | Dec 11, 2024 | — |
| UPLOAD | Letter from the SEC | Dec 3, 2024 | — |
| SD | Specialized disclosure (conflict minerals) | May 29, 2024 | — |
| SD | Specialized disclosure (conflict minerals) | Jun 5, 2023 | — |
| SD | Specialized disclosure (conflict minerals) | May 27, 2022 | — |
| UPLOAD | Letter from the SEC | Mar 31, 2022 | — |
| CORRESP | Letter to the SEC | Mar 25, 2022 | — |
| UPLOAD | Letter from the SEC | Mar 15, 2022 | — |
| SD | Specialized disclosure (conflict minerals) | May 27, 2021 | — |
| SD | Specialized disclosure (conflict minerals) | May 29, 2020 | — |
| SD | Specialized disclosure (conflict minerals) | May 31, 2019 | — |
| SD | Specialized disclosure (conflict minerals) | Jun 4, 2018 | — |
| SD | Specialized disclosure (conflict minerals) | May 31, 2017 | — |
| UPLOAD | Letter from the SEC | Aug 31, 2016 | — |
| CORRESP | Letter to the SEC | Aug 26, 2016 | — |
| UPLOAD | Letter from the SEC | Aug 18, 2016 | — |
| SD | Specialized disclosure (conflict minerals) | May 31, 2016 | — |
| NO ACT | Auto-generated paper document | Mar 5, 2015 | Jan 20, 2015 |
| UPLOAD | Letter from the SEC | Jun 19, 2013 | — |
| CORRESP | Letter to the SEC | Jun 3, 2013 | — |
| UPLOAD | Letter from the SEC | May 17, 2013 | — |
| EFFECT | Filing | Nov 15, 2012 | — |
| EFFECT | Filing | Feb 23, 2012 | — |
| CERTNYS | Auto-generated paper document | Feb 21, 2012 | — |
| 8-A12B | Form 8-a | Feb 21, 2012 | — |
| CORRESP | Letter to the SEC | Feb 21, 2012 | — |
| CORRESP | Letter to the SEC | Feb 21, 2012 | — |
| CORRESP | Letter to the SEC | Feb 21, 2012 | — |
| UPLOAD | Letter from the SEC | Feb 16, 2012 | — |
| CORRESP | Letter to the SEC | Feb 1, 2012 | — |
| UPLOAD | Letter from the SEC | Jan 10, 2012 | — |
| CORRESP | Letter to the SEC | Dec 29, 2011 | — |
| UPLOAD | Letter from the SEC | Dec 13, 2011 | — |
| CORRESP | Letter to the SEC | Dec 5, 2011 | — |
| UPLOAD | Letter from the SEC | Nov 17, 2011 | — |
| CORRESP | Letter to the SEC | Oct 26, 2011 | — |
| UPLOAD | Letter from the SEC | Oct 11, 2011 | — |
| CORRESP | Letter to the SEC | Sep 26, 2011 | — |
| UPLOAD | Letter from the SEC | Sep 15, 2011 | — |
| CORRESP | Letter to the SEC | Aug 31, 2011 | — |
| UPLOAD | Letter from the SEC | Aug 19, 2011 | — |
| REGDEX | Auto-generated paper document | Aug 18, 2008 | — |
Showing 45 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Fabricated Structural Metal Products (SIC 3440)
- Listed as
- PRLB (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- MN
- Headquarters
- Maple Plain, MN
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1443669
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.