Summary
Updated Aug 31, 2026
Marc Kermisch is Chief Technology & AI Officer of Proto Labs Inc (PRLB). 2 SEC Form 4 filings on record going back to 2025, most recently on 27 February 2026.
Recent Transactions
2Every recent SEC Form 4 transaction Marc Kermisch has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Marc Kermisch go back to 2025: 2 primary Form 4 filings, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Marc Kermisch files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Michael R. Kenison - $2.29M of PRLB open-market activity in the last 12 months
- Sven Wehrwein - $155K of PRLB open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Marc Kermisch?
Marc Kermisch is a corporate insider, tracked as Chief Technology & AI Officer of Proto Labs Inc (PRLB). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Marc Kermisch last file a Form 4?
The most recent primary Form 4 on record is dated 27 February 2026, one of 2 filings going back to 2025.
Where can I see all of Marc Kermisch's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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