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Proto Labs Inc

PRLB
Exchange
NYSE
Industry
Fabricated Structural Metal Products
SEC CIK
0001443669

In the last 90 days, Proto Labs Inc insiders filed 2 open-market purchases and 2 sales; 280 institutions reported holding it in 13F filings for Q2 2026, worth $1.83B in total; ARK Invest is the only superinvestor holding it.

SEC filings

10-K, 10-Q, 8-K, 20-F and 40-F reports Proto Labs Inc filed with the SEC, newest first.

Livermore lists each filing's form, 8-K items and dates only. To read a filing, open it on SEC.gov; an 8-K's press release or other attachments, such as exhibit 99.1 for Item 2.02, are in the filing index.

SEC filings by Proto Labs Inc
FiledForm8-K itemsPeriodDocumentFiling index
Oct 29, 202610-Q–Sep 30, 2026SECIndex
Oct 29, 20268-K2.029.01Oct 29, 2026SECIndex
Aug 24, 20268-K7.019.01Aug 24, 2026SECIndex
Jul 31, 202610-Q–Jun 30, 2026SECIndex
Jul 31, 20268-K2.029.01Jul 31, 2026SECIndex
May 20, 20268-K5.025.079.01May 19, 2026SECIndex
May 7, 20268-K5.027.019.01May 6, 2026SECIndex
May 1, 202610-Q–Mar 31, 2026SECIndex
May 1, 20268-K2.029.01May 1, 2026SECIndex
Feb 20, 202610-K–Dec 31, 2025SECIndex
Feb 6, 20268-K/A2.029.01Feb 6, 2026SECIndex
Feb 6, 20268-K2.029.01Feb 6, 2026SECIndex
Oct 31, 202510-Q–Sep 30, 2025SECIndex
Oct 31, 20258-K2.029.01Oct 31, 2025SECIndex
Oct 3, 20258-K5.027.019.01Oct 3, 2025SECIndex
Jul 31, 202510-Q–Jun 30, 2025SECIndex
Jul 31, 20258-K2.029.01Jul 31, 2025SECIndex
May 30, 20258-K5.029.01May 24, 2025SECIndex
May 21, 20258-K5.025.077.019.01May 20, 2025SECIndex
May 2, 202510-Q–Mar 31, 2025SECIndex
May 2, 20258-K2.029.01May 2, 2025SECIndex
Feb 21, 202510-K–Dec 31, 2024SECIndex
Feb 7, 20258-K2.027.019.01Feb 7, 2025SECIndex
Nov 7, 202410-Q–Sep 30, 2024SECIndex
Nov 1, 20248-K2.029.01Nov 1, 2024SECIndex
Oct 25, 20248-K2.052.06Oct 21, 2024SECIndex
Oct 7, 20248-K5.029.01Oct 1, 2024SECIndex
Aug 2, 202410-Q–Jun 30, 2024SECIndex
Aug 2, 20248-K2.029.01Aug 2, 2024SECIndex
Jul 24, 20248-K5.02Jul 22, 2024SECIndex
May 24, 20248-K5.025.07May 23, 2024SECIndex
May 3, 202410-Q–Mar 31, 2024SECIndex
May 3, 20248-K2.029.01May 3, 2024SECIndex
Feb 16, 202410-K–Dec 31, 2023SECIndex
Feb 9, 20248-K2.029.01Feb 9, 2024SECIndex
Nov 3, 202310-Q–Sep 30, 2023SECIndex
Nov 3, 20238-K2.029.01Nov 3, 2023SECIndex
Aug 4, 202310-Q–Jun 30, 2023SECIndex
Aug 4, 20238-K2.029.01Aug 4, 2023SECIndex
May 18, 20238-K5.025.079.01May 17, 2023SECIndex
May 5, 202310-Q–Mar 31, 2023SECIndex
May 5, 20238-K2.029.01May 5, 2023SECIndex
Feb 21, 202310-K–Dec 31, 2022SECIndex
Feb 10, 20238-K2.027.019.01Feb 7, 2023SECIndex
Nov 21, 20228-K7.019.01Nov 17, 2022SECIndex
Nov 15, 20228-K5.039.01Nov 15, 2022SECIndex
Nov 4, 202210-Q–Sep 30, 2022SECIndex
Nov 4, 20228-K2.029.01Nov 4, 2022SECIndex
Aug 30, 20228-K5.025.079.01Aug 29, 2022SECIndex
Aug 5, 202210-Q–Jun 30, 2022SECIndex