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Proto Labs, Inc. (PRLB)

Proto Labs, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Proto Labs, Inc. (PRLB) is a Manufacturing - Miscellaneous company based in US with a market capitalization of $1.8B. Revenue grew 6.4% year-over-year and the company generated $59.7M in free cash flow. This page tracks PRLB's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 2.36K employees · IPO Feb 24, 2012

Valuation

Valuation & price

$72.01 · as of May 17, 2026 · -11.8% vs 52w high

82.2

P/E ratio

Latest-FY diluted EPS

2.70

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$81.68$60.40$39.11Jul 25Dec 25Jun 26Jul 7, 25$40.54Jul 9, 25$41.13Jul 11, 25$40.14Jul 15, 25$39.45Jul 17, 25$40.11Jul 21, 25$39.12Jul 23, 25$39.86Jul 25, 25$39.11Jul 29, 25$40.02Jul 31, 25$43.12Aug 4, 25$43.35Aug 6, 25$44.96Aug 8, 25$46.62Aug 12, 25$47.65Aug 14, 25$47.85Aug 19, 25$48.55Aug 21, 25$48.26Aug 25, 25$50.46Aug 27, 25$50.84Aug 29, 25$49.81Sep 3, 25$49.06Sep 5, 25$49.93Sep 9, 25$49.58Sep 11, 25$50.29Sep 15, 25$49.65Sep 17, 25$49.37Sep 19, 25$50.55Sep 23, 25$50.84Sep 25, 25$49.18Sep 29, 25$49.64Oct 2, 25$49.87Oct 6, 25$50.63Oct 8, 25$50.28Oct 10, 25$48.23Oct 14, 25$51.91Oct 16, 25$54.53Oct 20, 25$53.76Oct 22, 25$53.09Oct 24, 25$54.64Oct 28, 25$53.49Oct 30, 25$53.03Nov 3, 25$53.47Nov 5, 25$49.80Nov 7, 25$48.99Nov 11, 25$49.51Nov 14, 25$48.50Nov 18, 25$47.16Nov 20, 25$46.81Nov 24, 25$49.26Nov 26, 25$50.86Dec 1, 25$50.03Dec 3, 25$51.18Dec 5, 25$52.08Dec 9, 25$51.23Dec 11, 25$53.22Dec 15, 25$52.42Dec 17, 25$52.37Dec 19, 25$52.12Dec 23, 25$53.17Dec 26, 25$52.70Dec 31, 25$50.59Jan 5, 26$52.99Jan 7, 26$53.75Jan 9, 26$54.71Jan 13, 26$54.04Jan 15, 26$55.00Jan 20, 26$53.03Jan 22, 26$55.19Jan 26, 26$52.93Jan 28, 26$51.86Jan 30, 26$52.65Feb 3, 26$53.67Feb 5, 26$52.48Feb 9, 26$65.91Feb 11, 26$67.15Feb 17, 26$66.82Feb 19, 26$65.52Feb 23, 26$63.25Feb 25, 26$62.63Feb 27, 26$62.08Mar 3, 26$61.96Mar 5, 26$61.11Mar 9, 26$57.59Mar 11, 26$58.34Mar 13, 26$54.35Mar 17, 26$56.72Mar 19, 26$56.65Mar 23, 26$58.03Mar 25, 26$59.82Mar 27, 26$56.04Apr 1, 26$58.13Apr 6, 26$57.67Apr 8, 26$60.51Apr 10, 26$61.40Apr 14, 26$61.91Apr 16, 26$62.06Apr 20, 26$64.50Apr 22, 26$63.98Apr 24, 26$64.62Apr 28, 26$63.68Apr 30, 26$64.81May 4, 26$64.34May 6, 26$68.89May 8, 26$69.30May 12, 26$71.02May 15, 26$72.01May 19, 26$70.16May 21, 26$69.75May 26, 26$73.94May 28, 26$74.73Jun 1, 26$75.84Jun 3, 26$74.67Jun 5, 26$72.64Jun 9, 26$75.48Jun 11, 26$77.96Jun 15, 26$78.53Jun 17, 26$79.57Jun 22, 26$81.68Jun 24, 26$79.83Jun 30, 26$81.20
$38.7452-week range$81.68
Loading valuation history…

Fundamentals

Key fundamentals

$1.8B

Market cap

6.4%

Revenue growth (YoY)

44.5%

Gross margin

$59.7M

Free cash flow (USD)

-$123.5M

Net debt

Net cash position

-4.7%

Share dilution

2/5

Graham criteria passed

Defensive-investor screen

Industrials

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$298.1MFY 2017$344.5MFY 2018$445.6MFY 2019$458.7MFY 2020$434.4MFY 2021$488.1MFY 2022$488.4MFY 2023$503.9MFY 2024$500.9MFY 2025$533.1M
$298.1M$533.1M

Free cash flow by year

2016 → 2025

FY 2016$41.4MFY 2017$49.1MFY 2018$35.8MFY 2019$53.8MFY 2020$60.0MFY 2021$21.0MFY 2022$40.4MFY 2023$45.2MFY 2024$68.7MFY 2025$59.7M
$41.4M$59.7M

Gross margin by year

2021 → 2025

FY 202145.6%FY 202244.1%FY 202344.1%FY 202444.6%FY 202544.5%
45.6%44.5%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

3

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 1, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • Insider sellInsider Sell $155KWEHRWEIN SVEN · Director · $154.6KJun 4, 2026Filing
  • 8-K eventLong-Term Incentive Plan UpdateMay 20, 2026Filing
  • Insider sellInsider Sell $1.6M · 10b5-1 PlanKenison Michael R. · Chief Operations Officer · $1.6MMay 13, 2026Filing
  • Insider sellInsider Sell $14K · 10b5-1 PlanKenison Michael R. · Chief Operations Officer · $14KMay 8, 2026Filing
  • 8-K eventExecutive ChangesMay 7, 2026Filing
  • 8-K eventEarnings ReleaseMay 1, 2026Filing
  • Quarterly report10-Q FiledMay 1, 2026Filing

Questions

Frequently asked questions

What is Proto Labs, Inc.'s market cap?

Proto Labs, Inc. (PRLB) has a market capitalization of $1.8B.

What is PRLB's P/E ratio?

PRLB trades at a price-to-earnings ratio of 82.2, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is PRLB's price-to-book (P/B) ratio?

PRLB trades at 2.70 times book value per share.

Are insiders buying PRLB stock?

SEC Form 4 filings show no open-market insider buys at Proto Labs, Inc. in the last 90 days (3 sells).

Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.