Proto Labs Ownership & Insider Activity

Proto Labs (PRLB) institutional and insider ownership, recent insider transactions and ownership breakdown.

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$903K total

Net Activity

Net Selling

Net Value (90d)

-$903K

Proto Labs Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 24, 2026	Daniel Schumacher	CHIEF FINANCIAL OFFICER	SELL	5.000K	$95.32	$477K
Sep 16, 2026	Daniel Schumacher	CHIEF FINANCIAL OFFICER	SELL	5.000K	$85.21	$426K
Jun 2, 2026	SVEN WEHRWEIN	DIRECTOR	SELL	2.000K	$77.28	$155K
May 11, 2026	Michael Kenison	CHIEF OPERATIONS OFFICER	SELL	8.503K	$55.50	$1.0M
May 7, 2026	Michael Kenison	CHIEF OPERATIONS OFFICER	SELL-OPTIONS	—	$51.84	$7K