PRLB

Proto Labs, Inc.$68.89+0.00 (—)

Prev Close$77.64·MCap$1.64B·P/E63.99·Vol—·Yield—

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Buys (12M)

$0.00

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Sells (12M)

$3.86M

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Net Activity

Net Seller

$3.86M

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at Proto Labs, Inc. (PRLB) has been exclusively selling, with 0 insider purchases totaling $0.00 and 10 insider sales totaling $3.86M. The most recent insider transaction was by Schumacher Daniel (officer: Chief Financial Officer), who sold $476.6K worth of shares on Sep 25, 2026. Proto Labs, Inc. operates in the Industrials sector, within the Manufacturing - Miscellaneous industry, with a market cap of $1.64B.

PRLB Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Sep 25, 2026	Schumacher Daniel	officer: Chief Financial Officer	Sell	5,000	$95.32	$476.6K	35,019
Sep 18, 2026	Schumacher Daniel	officer: Chief Financial Officer	Sell	5,000	$85.21	$426.0K	44,919
Jun 4, 2026	WEHRWEIN SVEN	director	Sell	2,000	$77.28	$154.6K	33,005
May 13, 2026	Kenison Michael R.	officer: Chief Operations Officer	Sell	23,463	$69.73	$1.64M	33,100-41%
May 8, 2026	Kenison Michael R.	officer: Chief Operations Officer	Sell	200	$70.00	$14.0K	27,186
Feb 18, 2026	Kenison Michael R.	officer: Chief Operations Officer	Sell	5,000	$66.46	$332.3K	25,302
Feb 13, 2026	Kenison Michael R.	Chief Operations Officer	Sell	6,540	$66.71	$436.3K	0
Feb 13, 2026	Schumacher Daniel	Chief Financial Officer	Sell	1,267	$67.52	$85.5K	0
Feb 9, 2026	Kenison Michael R.	officer: Chief Operations Officer	Sell	2,500	$60.00	$150.0K	34,526
Nov 26, 2025	Kenison Michael R.	Chief Operations Officer	Sell	3,048	$50.17	$152.9K	28,898
Aug 7, 2025	Gawlick Rainer	Director	Buy	1,715	$43.79	$75.1K	43,883
Aug 6, 2025	Krishna Suresh	President and CEO	Buy	1,725	$43.51	$75.1K	18,021
Sep 9, 2024	Bodor Robert	President and CEO	Buy	3,480	$28.68	$99.8K	80,878
Dec 6, 2021	Bodor Robert	President and CEO	Buy	3,138	$47.87	$150.2K	24,694
Dec 1, 2021	Baker Arthur R. III	Chief Technology Officer	Buy	10,000	$49.21	$492.1K	30,613+49%
Mar 3, 2021	Goodman John B	Director	Sell	1,000	$151.19	$151.2K	12,586

PRLB Insider Buying Activity

The following table shows recent insider purchases of Proto Labs, Inc. (PRLB) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Aug 7, 2025	Gawlick Rainer	Director	Buy	1,715	$43.79	$75.1K	43,883
Aug 6, 2025	Krishna Suresh	President and CEO	Buy	1,725	$43.51	$75.1K	18,021
Sep 9, 2024	Bodor Robert	President and CEO	Buy	3,480	$28.68	$99.8K	80,878
Dec 6, 2021	Bodor Robert	President and CEO	Buy	3,138	$47.87	$150.2K	24,694
Dec 1, 2021	Baker Arthur R. III	Chief Technology Officer	Buy	10,000	$49.21	$492.1K	30,613+49%

PRLB Insider Selling Activity

The following table shows recent insider sales of Proto Labs, Inc. (PRLB) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Sep 25, 2026	Schumacher Daniel	officer: Chief Financial Officer	Sell	5,000	$95.32	$476.6K	35,019
Sep 18, 2026	Schumacher Daniel	officer: Chief Financial Officer	Sell	5,000	$85.21	$426.0K	44,919
Jun 4, 2026	WEHRWEIN SVEN	director	Sell	2,000	$77.28	$154.6K	33,005
May 13, 2026	Kenison Michael R.	officer: Chief Operations Officer	Sell	23,463	$69.73	$1.64M	33,100-41%
May 8, 2026	Kenison Michael R.	officer: Chief Operations Officer	Sell	200	$70.00	$14.0K	27,186
Feb 18, 2026	Kenison Michael R.	officer: Chief Operations Officer	Sell	5,000	$66.46	$332.3K	25,302
Feb 13, 2026	Kenison Michael R.	Chief Operations Officer	Sell	6,540	$66.71	$436.3K	0
Feb 13, 2026	Schumacher Daniel	Chief Financial Officer	Sell	1,267	$67.52	$85.5K	0
Feb 9, 2026	Kenison Michael R.	officer: Chief Operations Officer	Sell	2,500	$60.00	$150.0K	34,526
Nov 26, 2025	Kenison Michael R.	Chief Operations Officer	Sell	3,048	$50.17	$152.9K	28,898
Mar 3, 2021	Goodman John B	Director	Sell	1,000	$151.19	$151.2K	12,586