Proto Labs Inc

PRLBReported to SECin USCIK 0001443669Filings at SEC EDGAR

No score on this page, by design. Everything here is a fact from a public U.S. register: insider filings at the SEC (Form 4), lobbying filings under the Lobbying Disclosure Act, trades reported by members of Congress under the STOCK Act, and fund holdings in 13F filings. Our scores, percentiles and signals run on the Dutch register only, because that is the only register the model has been validated on.

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Filings

Most recent filing first: every line of every Form 4 at this company that passed our review, the same lines as on the register. Reported is the day the filing reached the SEC, usually within two business days of the trade. Amounts are in U.S. dollars, as the form states them.

3
Form 4 lines at Proto Labs Inc, most recent filing first
Filed byTypeValueReportedFiled byValueTypeSharesReported
Schumacher DanielChief Financial OfficerOpen-market sell$476,6055,000 sharesSep 25, 2026Schumacher DanielChief Financial Officer$476,605Sell · Sep 25Open-market sell5,000Sep 25, 2026
Schumacher DanielChief Financial OfficerOpen-market sell$417,5354,900 sharesSep 18, 2026Schumacher DanielChief Financial Officer$417,535Sell · Sep 18Open-market sell4,900Sep 18, 2026
Schumacher DanielChief Financial OfficerOpen-market sell$8,500100 sharesSep 18, 2026Schumacher DanielChief Financial Officer$8,500Sell · Sep 18Open-market sell100Sep 18, 2026