Proto Labs Ownership & Insider Activity

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

Insiders own 11.5% of shares outstanding. Institutional investors hold 65.2%. Over the past 90 days, insiders made 2 sales worth $903K.

Shares Outstanding

23.872M

Shares Float

17.374M

Insider Shares Owned

2.755M

Insider % Owned

11.5%

Institutional Shares Held

15.569M

Institutional % Held

65.2%

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