PRLB Insider Trading

Proto Labs Inc · full profile →Last filing Jun 2, 2026
Net Selling · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$2.3M
2 insiders
Net Insider Flow
-$2.3M
open market, 180d
Reporting Insiders
2
10 P/S transactions
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Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jun 2, 2026Wehrwein SvenDirectorSell(S)2K$76.91$115K
Jun 2, 2026Wehrwein SvenDirectorSell(S)500$78.38$39K
May 23, 2026Krishna SureshPresident and CEO, DirectorTax withholding(F)1K$71.36$89K
May 20, 2026Schumacher DanielChief Financial OfficerTax withholding(F)255$71.13$18K
May 20, 2026Parlange BernardoChief Commercial OfficerGrant(A)2K$0
May 20, 2026Parlange BernardoChief Commercial OfficerGrant(A)4K$0
May 19, 2026Black Archie C.DirectorGrant(A)2K$0
May 19, 2026Chin MoonhieDirectorGrant(A)2K$0
May 19, 2026Chand SujeetDirectorGrant(A)2K$0
May 19, 2026Gawlick RainerDirectorGrant(A)2K$0
May 19, 2026Krantz Donald GDirectorGrant(A)2K$0
May 19, 2026Wehrwein SvenDirectorGrant(A)2K$0
May 12, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)2K$33.84$65K
May 12, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)2K$39.61$62K
May 12, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)4K$59.40$240K
May 12, 2026Kenison Michael R.Chief Operations OfficerSell(S)2K$67.58$109K
May 12, 2026Kenison Michael R.Chief Operations OfficerSell(S)4K$68.70$288K
May 12, 2026Kenison Michael R.Chief Operations OfficerSell(S)4K$69.78$250K
May 12, 2026Kenison Michael R.Chief Operations OfficerSell(S)7K$70.30$467K
May 12, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)2K$0
May 12, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)2K$0
May 12, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)4K$0
May 11, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)4K$33.84$127K
May 11, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)4K$33.52$123K
May 11, 2026Kenison Michael R.Chief Operations OfficerSell(S)7K$70.26$522K
May 11, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)4K$0
May 11, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)4K$0
May 7, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)100$33.84$3K
May 7, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)100$33.52$3K
May 7, 2026Kenison Michael R.Chief Operations OfficerSell(S)200$70.00$14K
May 7, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)100$0
May 7, 2026Kenison Michael R.Chief Operations OfficerOption exercise(M)100$0
Feb 25, 2026Kermisch MarcChief Technology & AI OfficerGrant(A)3K$0
Feb 25, 2026Kermisch MarcChief Technology & AI OfficerGrant(A)5K$0
Feb 25, 2026Kenison Michael R.Chief Operations OfficerGrant(A)2K$0
Feb 25, 2026Kenison Michael R.Chief Operations OfficerTax withholding(F)531$62.63$33K
Feb 25, 2026Kenison Michael R.Chief Operations OfficerGrant(A)4K$0
Feb 25, 2026Schumacher DanielChief Financial OfficerTax withholding(F)504$62.63$32K
Feb 25, 2026Schumacher DanielChief Financial OfficerGrant(A)3K$0
Feb 25, 2026Schumacher DanielChief Financial OfficerGrant(A)6K$0
Feb 25, 2026Krishna SureshPresident and CEO, DirectorGrant(A)13K$0
Feb 25, 2026Krishna SureshPresident and CEO, DirectorGrant(A)24K$0
Feb 17, 2026Kenison Michael R.Chief Operations OfficerSell(S)5K$66.46$332K
Feb 13, 2026Kenison Michael R.Chief Operations OfficerTax withholding(F)2K$67.52$104K
Feb 13, 2026Schumacher DanielChief Financial OfficerTax withholding(F)1K$67.52$86K
Feb 11, 2026Schumacher DanielChief Financial OfficerOption exercise(M)3K$33.84$106K
Feb 11, 2026Schumacher DanielChief Financial OfficerOption exercise(M)3K$0
Feb 10, 2026Kenison Michael R.Chief Operations OfficerTax withholding(F)3K$53.18$143K
Feb 10, 2026Schumacher DanielChief Financial OfficerTax withholding(F)7K$53.18$362K
Feb 6, 2026Kenison Michael R.Chief Operations OfficerSell(S)3K$60.00$150K
Jan 29, 2026Schumacher DanielChief Financial OfficerGrant(A)21K$0
Jan 29, 2026Kenison Michael R.Chief Operations OfficerGrant(A)8K$0
Nov 25, 2025Kenison Michael R.Chief Operations OfficerSell(S)3K$50.17$153K
Nov 25, 2025Kenison Michael R.Chief Operations OfficerOption exercise(M)3K$33.84$103K
Nov 25, 2025Kenison Michael R.Chief Operations OfficerOption exercise(M)3K$0
Nov 17, 2025Kermisch MarcChief Technology & AI OfficerGrant(A)4K$0
Nov 17, 2025Kermisch MarcChief Technology & AI OfficerGrant(A)7K$0
Aug 5, 2025Gawlick RainerDirectorBuy(P)2K$43.79$75K
Aug 4, 2025Krishna SureshPresident and CEO, DirectorBuy(P)2K$43.51$75K
May 23, 2025Krishna SureshPresident and CEO, DirectorGrant(A)16K$0
May 23, 2025Krishna SureshPresident and CEO, DirectorGrant(A)30K$0
May 23, 2025Krantz Donald GDirectorGrant(A)4K$0
May 23, 2025Wehrwein SvenDirectorGrant(A)4K$0
May 23, 2025Greiner StacyDirectorGrant(A)4K$0
May 23, 2025Chand SujeetDirectorGrant(A)4K$0
May 23, 2025Chin MoonhieDirectorGrant(A)4K$0
May 23, 2025Gawlick RainerDirectorGrant(A)4K$0
May 23, 2025Black Archie C.DirectorGrant(A)4K$0
May 20, 2025Kenison Michael R.Chief Operations OfficerTax withholding(F)204$40.87$8K
May 20, 2025Schumacher DanielChief Financial OfficerTax withholding(F)305$40.87$12K
Feb 25, 2025Bodor RobertPresident and CEOGrant(A)19K$0
Feb 25, 2025Bodor RobertPresident and CEOGrant(A)34K$0
Feb 25, 2025Ryaboy OlegChief Technology OfficerGrant(A)8K$0
Feb 25, 2025Ryaboy OlegChief Technology OfficerGrant(A)7K$0
Feb 25, 2025Kenison Michael R.Chief Operations OfficerGrant(A)7K$0
Feb 25, 2025Kenison Michael R.Chief Operations OfficerGrant(A)6K$0
Feb 25, 2025Schumacher DanielChief Financial OfficerGrant(A)4K$0
Feb 25, 2025Schumacher DanielChief Financial OfficerGrant(A)8K$0
Feb 13, 2025Ryaboy OlegChief Technology OfficerTax withholding(F)2K$45.03$111K
Feb 13, 2025Schumacher DanielChief Financial OfficerTax withholding(F)1K$45.03$57K
Feb 13, 2025Schumacher DanielChief Financial OfficerTax withholding(F)1K$45.03$49K
Feb 13, 2025Schumacher DanielChief Financial OfficerGrant(A)3K$0
Feb 13, 2025Kenison Michael R.Chief Operations OfficerGrant(A)2K$0
Feb 13, 2025Kenison Michael R.Chief Operations OfficerTax withholding(F)580$45.03$26K
Feb 13, 2025Kenison Michael R.Chief Operations OfficerTax withholding(F)2K$45.03$76K
Feb 13, 2025Bodor RobertPresident and CEOGrant(A)24K$0
Feb 13, 2025Bodor RobertPresident and CEOTax withholding(F)8K$45.03$339K
Feb 13, 2025Bodor RobertPresident and CEOTax withholding(F)7K$45.03$327K
Sep 6, 2024Bodor RobertPresident and CEOBuy(P)3K$28.68$100K
May 23, 2024Wehrwein SvenDirectorGrant(A)5K$0
May 23, 2024Krantz Donald GDirectorGrant(A)5K$0
May 23, 2024Greiner StacyDirectorGrant(A)5K$0
May 23, 2024Gawlick RainerDirectorGrant(A)5K$0
May 23, 2024Chin MoonhieDirectorGrant(A)5K$0
May 23, 2024Chand SujeetDirectorGrant(A)5K$0
May 23, 2024Black Archie C.DirectorGrant(A)5K$0
May 20, 2024Schumacher DanielChief Financial OfficerTax withholding(F)370$31.81$12K
May 20, 2024Kenison Michael R.VP and GM of the America'sTax withholding(F)336$31.81$11K
Feb 13, 2024Bodor RobertPresident and CEOGrant(A)22K$0
Feb 13, 2024Bodor RobertPresident and CEOTax withholding(F)4K$33.52$119K

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-01-042026-07-21. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).