Form4insider filings, from the source

Company · CIK 0001443669 · SIC 3440 — Fabricated Structural Metal Products · NYSE

Proto Labs Inc · PRLB

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $1.1M · 3net −$1.1M
$10k$10k$100k$100k$1M$1MbuyssalesMar 27Apr 26May 27Jun 27Jul 27Aug 27Sep 27

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 24, 2026 SForm 4 →Sep 25, 4:11 pm EDTDaniel SchumacherChief Financial Officer5,000$95.32$476,60535,019−12.5%10b5-1
Sep 16, 2026 SForm 4 →Sep 18, 4:02 pm EDTDaniel SchumacherChief Financial Officer5,000$85.21$426,03540,019−11.1%10b5-1
Jun 2, 2026 SForm 4 →Jun 4, 4:53 pm EDTSven WehrweinDirector2,000$77.28$154,55032,505−5.80%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.