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 |
|---|---|---|---|
| 10-Q | Quarterly report | Oct 29, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2026 | Oct 29, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 24, 2026 | Aug 24, 2026 |
| S-8 | Employee stock plan registration | Jul 31, 2026 | — |
| 10-Q | Quarterly report | Jul 31, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2026 | Jul 31, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 28, 2026 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 20, 2026 | May 19, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
May 7, 2026 | May 6, 2026 |
| 10-Q | Quarterly report | May 1, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 1, 2026 | May 1, 2026 |
| ARS | Annual report to shareholders | Apr 8, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 8, 2026 | — |
| DEF 14A | Proxy statement | Apr 8, 2026 | May 19, 2026 |
| 10-K | Annual report | Feb 20, 2026 | Dec 31, 2025 |
| 8-K/A |
Amended current report
Results of operations
|
Feb 6, 2026 | Feb 6, 2026 |
| 8-K |
Current report
Results of operations
|
Feb 6, 2026 | Feb 6, 2026 |
| 10-Q | Quarterly report | Oct 31, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 31, 2025 | Oct 31, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 3, 2025 | Oct 3, 2025 |
| 10-Q | Quarterly report | Jul 31, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2025 | Jul 31, 2025 |
| 8-K |
Current report
Officer or director change
|
May 30, 2025 | May 24, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2025 | — |
| S-8 | Employee stock plan registration | May 27, 2025 | — |
| S-8 | Employee stock plan registration | May 27, 2025 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Regulation FD disclosure
|
May 21, 2025 | May 20, 2025 |
| 10-Q | Quarterly report | May 2, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 2, 2025 | May 2, 2025 |
| ARS | Annual report to shareholders | Apr 9, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 9, 2025 | — |
| DEF 14A | Proxy statement | Apr 9, 2025 | May 20, 2025 |
| 10-K | Annual report | Feb 21, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 7, 2025 | Feb 7, 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 | — |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2024 | Nov 1, 2024 |
| 8-K |
Current report
Exit or restructuring costs, Impairment
|
Oct 25, 2024 | Oct 21, 2024 |
| 8-K |
Current report
Officer or director change
|
Oct 7, 2024 | Oct 1, 2024 |
| S-8 | Employee stock plan registration | Aug 2, 2024 | — |
| 10-Q | Quarterly report | Aug 2, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2024 | Aug 2, 2024 |
| 8-K |
Current report
Officer or director change
|
Jul 24, 2024 | Jul 22, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2024 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 24, 2024 | May 23, 2024 |
| 10-Q | Quarterly report | May 3, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 3, 2024 | May 3, 2024 |
| ARS | Annual report to shareholders | Apr 12, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 12, 2024 | — |
| DEF 14A | Proxy statement | Apr 12, 2024 | May 23, 2024 |
| 10-K | Annual report | Feb 16, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 9, 2024 | Feb 9, 2024 |
| 10-Q | Quarterly report | Nov 3, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2023 | Nov 3, 2023 |
| S-8 | Employee stock plan registration | Aug 4, 2023 | — |
| 10-Q | Quarterly report | Aug 4, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2023 | Aug 4, 2023 |
| SD | Specialized disclosure (conflict minerals) | Jun 5, 2023 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 18, 2023 | May 17, 2023 |
| 10-Q | Quarterly report | May 5, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 5, 2023 | May 5, 2023 |
| DEFA14A | Additional proxy material | Apr 4, 2023 | — |
| DEF 14A | Proxy statement | Apr 4, 2023 | — |
| 10-K | Annual report | Feb 21, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 10, 2023 | Feb 7, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 21, 2022 | Nov 17, 2022 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Nov 15, 2022 | Nov 15, 2022 |
| 10-Q | Quarterly report | Nov 4, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2022 | Nov 4, 2022 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Aug 30, 2022 | Aug 29, 2022 |
| S-8 POS | Form s-8 pos | Aug 30, 2022 | — |
| S-8 POS | Form s-8 pos | Aug 30, 2022 | — |
| S-8 POS | Form s-8 pos | Aug 30, 2022 | — |
| S-8 | Employee stock plan registration | Aug 30, 2022 | — |
| 10-Q | Quarterly report | Aug 5, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2022 | Aug 5, 2022 |
| DEFA14A | Additional proxy material | Jul 19, 2022 | — |
| DEF 14A | Proxy statement | Jul 19, 2022 | Aug 29, 2022 |
| PRE 14A | Preliminary proxy statement | Jul 8, 2022 | Jul 19, 2022 |
| 8-K |
Current report
Officer or director change
|
Jun 6, 2022 | Jun 3, 2022 |
| 8-K |
Current report
Exit or restructuring costs, Impairment
|
May 31, 2022 | May 27, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2022 | — |
| 8-K |
Current report
Shareholder vote results
|
May 18, 2022 | May 18, 2022 |
| 10-Q | Quarterly report | May 6, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 6, 2022 | May 6, 2022 |
| DEFA14A | Additional proxy material | Apr 5, 2022 | — |
| DEF 14A | Proxy statement | Apr 5, 2022 | May 18, 2022 |
| UPLOAD | Letter from the SEC | Mar 31, 2022 | — |
| CORRESP | Letter to the SEC | Mar 25, 2022 | — |
| 8-K |
Current report
Officer or director change
|
Mar 16, 2022 | Mar 15, 2022 |
| UPLOAD | Letter from the SEC | Mar 15, 2022 | — |
| 10-K | Annual report | Feb 18, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 11, 2022 | Feb 11, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 10, 2021 | Dec 8, 2021 |
| 8-K |
Current report
Officer or director change
|
Nov 16, 2021 | Nov 15, 2021 |
| 8-K |
Current report
Officer or director change
|
Nov 5, 2021 | Nov 3, 2021 |
| 10-Q | Quarterly report | Nov 2, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2021 | Oct 28, 2021 |
| 10-Q | Quarterly report | Aug 3, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Jul 29, 2021 | Jul 29, 2021 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2021 | — |
| 8-K |
Current report
Shareholder vote results
|
May 18, 2021 | May 18, 2021 |
| 10-Q | Quarterly report | May 10, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 6, 2021 | May 6, 2021 |
| DEFA14A | Additional proxy material | Apr 6, 2021 | — |
| DEF 14A | Proxy statement | Apr 6, 2021 | May 18, 2021 |
| 10-K | Annual report | Feb 19, 2021 | Dec 31, 2020 |
| S-3ASR | Automatic shelf registration | Feb 16, 2021 | — |
| 8-K |
Current report
Results of operations
|
Feb 12, 2021 | Feb 12, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 4, 2021 | Jan 29, 2021 |
| 8-K |
Current report
Acquisition or sale of assets, Unregistered share sale, Other events
|
Jan 25, 2021 | Jan 22, 2021 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Jan 19, 2021 | Jan 18, 2021 |
| 8-K |
Current report
Officer or director change
|
Dec 14, 2020 | Dec 9, 2020 |
| 10-Q | Quarterly report | Nov 3, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2020 | Oct 29, 2020 |
| 10-Q | Quarterly report | Jul 31, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2020 | Jul 28, 2020 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2020 | — |
| 8-K |
Current report
Shareholder vote results
|
May 19, 2020 | May 19, 2020 |
| 10-Q | Quarterly report | May 5, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 30, 2020 | Apr 30, 2020 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2020 | Apr 30, 2020 |
| DEFA14A | Additional proxy material | Apr 6, 2020 | — |
| DEF 14A | Proxy statement | Apr 6, 2020 | May 19, 2020 |
| 10-K | Annual report | Feb 26, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 6, 2020 | Feb 6, 2020 |
| 10-Q | Quarterly report | Oct 29, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 24, 2019 | Oct 24, 2019 |
| 8-K |
Current report
Officer or director change
|
Aug 2, 2019 | Jul 29, 2019 |
| 10-Q | Quarterly report | Jul 30, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Jul 25, 2019 | Jul 25, 2019 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2019 | — |
| 8-K |
Current report
Shareholder vote results, Other events
|
May 16, 2019 | May 15, 2019 |
| 8-K |
Current report
Officer or director change
|
May 14, 2019 | May 8, 2019 |
| 10-Q | Quarterly report | Apr 30, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations
|
Apr 25, 2019 | Apr 25, 2019 |
| DEF 14A | Proxy statement | Apr 5, 2019 | May 15, 2019 |
| 10-K | Annual report | Feb 22, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2019 | Feb 7, 2019 |
| 10-Q | Quarterly report | Oct 30, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations
|
Oct 25, 2018 | Oct 25, 2018 |
| 10-Q | Quarterly report | Aug 1, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Results of operations
|
Jul 26, 2018 | Jul 26, 2018 |
| SD | Specialized disclosure (conflict minerals) | Jun 4, 2018 | — |
| 8-K |
Current report
Other events
|
May 25, 2018 | May 25, 2018 |
| 8-K |
Current report
Shareholder vote results
|
May 16, 2018 | May 16, 2018 |
| 10-Q | Quarterly report | May 1, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Results of operations
|
Apr 26, 2018 | Apr 26, 2018 |
| DEF 14A | Proxy statement | Apr 6, 2018 | May 16, 2018 |
| 10-K | Annual report | Feb 23, 2018 | Dec 31, 2017 |
| 8-K/A | Amended current report | Feb 13, 2018 | Nov 30, 2017 |
| 8-K |
Current report
Results of operations
|
Feb 8, 2018 | Feb 8, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 12, 2017 | Dec 12, 2017 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, New debt
|
Dec 1, 2017 | Nov 27, 2017 |
| 8-K |
Current report
Material agreement, Other events
|
Nov 21, 2017 | Nov 16, 2017 |
| 10-Q | Quarterly report | Oct 31, 2017 | Sep 30, 2017 |
| 8-K |
Current report
Results of operations
|
Oct 26, 2017 | Oct 26, 2017 |
| 8-K |
Current report
Officer or director change
|
Aug 8, 2017 | Aug 2, 2017 |
| 10-Q | Quarterly report | Aug 1, 2017 | Jun 30, 2017 |
| 8-K |
Current report
Results of operations
|
Jul 27, 2017 | Jul 27, 2017 |
| 8-K |
Current report
Officer or director change
|
Jun 2, 2017 | Jun 2, 2017 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2017 | — |
| 8-K |
Current report
Shareholder vote results
|
May 18, 2017 | May 18, 2017 |
| 10-Q | Quarterly report | May 2, 2017 | Mar 31, 2017 |
| 8-K |
Current report
Results of operations
|
Apr 27, 2017 | Apr 27, 2017 |
| DEF 14A | Proxy statement | Apr 4, 2017 | May 18, 2017 |
| 10-K | Annual report | Feb 22, 2017 | Dec 31, 2016 |
| 8-K |
Current report
Officer or director change
|
Feb 17, 2017 | Feb 13, 2017 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 9, 2017 | Feb 9, 2017 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Nov 8, 2016 | Nov 8, 2016 |
| 10-Q | Quarterly report | Nov 2, 2016 | Sep 30, 2016 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2016 | Oct 27, 2016 |
| UPLOAD | Letter from the SEC | Aug 31, 2016 | — |
| CORRESP | Letter to the SEC | Aug 26, 2016 | — |
| UPLOAD | Letter from the SEC | Aug 18, 2016 | — |
| 10-Q | Quarterly report | Aug 4, 2016 | Jun 30, 2016 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2016 | Jul 28, 2016 |
| 8-K |
Current report
Officer or director change
|
Jun 14, 2016 | Jun 9, 2016 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2016 | — |
| 8-K |
Current report
Shareholder vote results
|
May 19, 2016 | May 19, 2016 |
| 10-Q | Quarterly report | May 5, 2016 | Mar 31, 2016 |
| 8-K |
Current report
Results of operations
|
Apr 28, 2016 | Apr 28, 2016 |
| DEF 14A | Proxy statement | Apr 8, 2016 | May 19, 2016 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Apr 8, 2016 | Apr 5, 2016 |
| 8-K |
Current report
Officer or director change
|
Mar 24, 2016 | Mar 24, 2016 |
| 8-K |
Current report
Officer or director change
|
Feb 26, 2016 | Feb 23, 2016 |
| 10-K | Annual report | Feb 26, 2016 | Dec 31, 2015 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2016 | Feb 4, 2016 |
| 10-Q | Quarterly report | Nov 3, 2015 | Sep 30, 2015 |
| 8-K |
Current report
Results of operations
|
Oct 22, 2015 | Oct 22, 2015 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 9, 2015 | Oct 9, 2015 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 25, 2015 | Sep 24, 2015 |
| 10-Q | Quarterly report | Aug 6, 2015 | Jun 30, 2015 |
| 8-K |
Current report
Results of operations
|
Jul 23, 2015 | Jul 23, 2015 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
May 21, 2015 | May 20, 2015 |
| 10-Q | Quarterly report | May 5, 2015 | Mar 31, 2015 |
| 8-K |
Current report
Results of operations
|
Apr 23, 2015 | Apr 23, 2015 |
| DEF 14A | Proxy statement | Apr 7, 2015 | May 20, 2015 |
Showing 200 filings, the most recent 200. 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
Other Fabricated Structural Metal Products companies
- Valmont Industries Inc VMI
- INNOVATE Corp. VATE
- Techprecision Corp TPCS
- Arcosa, Inc. ACA
Source: SEC EDGAR filings. This is company-reported data, not investment advice.