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PRLB Insider Trading

Insider Ownership Percentage: 1.30%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $2,107,645.44

Proto Labs Insider Trading History Chart

This chart shows the insider buying and selling history at Proto Labs by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Proto Labs Share Price & Price History

Current Price: $86.66
Price Change: ▲ Price Increase of +3.42 (4.11%)
As of 09/17/2026 03:59 PM ET

This chart shows the closing price history over time for PRLB up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Proto Labs Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
6/2/2026Sven WehrweinDirectorSell2,000$77.28$154,560.0032,505View SEC Filing Icon  
5/12/2026Michael R KenisonInsiderSell16,030$69.49$1,113,924.7018,683View SEC Filing Icon  
5/11/2026Michael R KenisonInsiderSell7,433$70.26$522,242.5827,186View SEC Filing Icon  
5/7/2026Michael R KenisonInsiderSell200$70.00$14,000.0027,186View SEC Filing Icon  
2/6/2026Michael R KenisonInsiderSell2,500$60.00$150,000.0034,526View SEC Filing Icon  
11/25/2025Michael R KenisonInsiderSell3,048$50.17$152,918.1628,898View SEC Filing Icon  
8/4/2025Suresh KrishnaCEOBuy1,725$43.51$75,054.7518,021View SEC Filing Icon  
9/6/2024Robert BodorCEOBuy3,480$28.68$99,806.4080,878View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Proto Labs (NYSE:PRLB)

84.54% of Proto Labs stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at PRLB by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Proto Labs Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026Tidal Investments LLC10,865$0.89M0.0%-30.2%0.045%Search for SEC Filing on Google Icon
9/9/2026WINTON GROUP Ltd3,537$0.29M0.0%-53.2%0.015%Search for SEC Filing on Google Icon
9/9/2026Engineers Gate Manager LP26,780$2.18M0.0%+84.7%0.112%Search for SEC Filing on Google Icon
9/9/2026Squarepoint Ops LLC16,439$1.34M0.0%-60.2%0.069%Search for SEC Filing on Google Icon
8/27/2026Corient Private Wealth LP12,427$1.01M0.0%+16.1%0.052%Search for SEC Filing on Google Icon
8/26/2026Amundi12,941$1.06M0.0%-8.1%0.054%Search for SEC Filing on Google Icon
8/23/2026Angeles Wealth Management LLC5,045$0.41M0.0%+12.4%0.021%Search for SEC Filing on Google Icon
8/22/2026Turner Financial Group Inc.4,843$0.40M0.4%N/A0.020%Search for SEC Filing on Google Icon
8/20/2026Susquehanna Fundamental Investments LLC33,760$2.75M0.1%+227.0%0.141%Search for SEC Filing on Google Icon
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC65,044$5.30M0.0%-1.1%0.272%Search for SEC Filing on Google Icon
8/19/2026Hsbc Holdings PLC24,699$2.01M0.0%+60.6%0.103%Search for SEC Filing on Google Icon
8/18/2026Jefferies Financial Group Inc.10,710$0.87M0.0%N/A0.045%Search for SEC Filing on Google Icon
8/18/2026Public Employees Retirement System of Ohio451$37K0.0%N/A0.002%Search for SEC Filing on Google Icon
8/17/2026Corient Private Wealth LP10,691$0.87M0.0%N/A0.045%Search for SEC Filing on Google Icon
8/17/2026Bank of America Corp DE125,997$10.27M0.0%N/A0.527%Search for SEC Filing on Google Icon
8/15/2026American Capital Management Inc.619,845$50.52M2.3%N/A2.591%Search for SEC Filing on Google Icon
8/15/2026Jupiter Topco LLC12,216$1M0.0%N/A0.051%Search for SEC Filing on Google Icon
8/14/2026Hsbc Holdings PLC24,699$2.01M0.0%N/A0.103%Search for SEC Filing on Google Icon
8/14/2026Canada Pension Plan Investment Board9,500$0.77M0.0%N/A0.040%Search for SEC Filing on Google Icon
8/14/2026Legal & General Group Plc56,739$4.63M0.0%N/A0.237%Search for SEC Filing on Google Icon
8/14/2026The Manufacturers Life Insurance Company9,335$0.76M0.0%N/A0.039%Search for SEC Filing on Google Icon
8/14/2026S Squared Technology LLC288,120$23.48M0.0%N/A1.205%Search for SEC Filing on Google Icon
8/14/2026Algert Global LLC36,695$2.99M0.0%+480.2%0.153%Search for SEC Filing on Google Icon
8/13/2026Connor Clark & Lunn Investment Management Ltd.120,473$9.82M0.0%N/A0.504%Search for SEC Filing on Google Icon
8/7/2026BlackRock Inc.3,896,222$317.58M0.0%N/A16.287%Search for SEC Filing on Google Icon
8/7/2026Deutsche Bank AG25,119$2.05M0.0%N/A0.105%Search for SEC Filing on Google Icon
8/7/2026Rice Hall James & Associates LLC108,964$8.88M0.4%N/A0.455%Search for SEC Filing on Google Icon
8/6/2026Bank of New York Mellon Corp143,782$11.72M0.0%N/A0.601%Search for SEC Filing on Google Icon
8/6/2026State of Wyoming16,370$1.33M0.1%N/A0.068%Search for SEC Filing on Google Icon
8/6/2026GSA Capital Partners LLP10,603$0.86M0.1%N/A0.044%Search for SEC Filing on Google Icon
8/5/2026USA Financial Formulas917$52K0.0%N/A0.004%Search for SEC Filing on Google Icon
8/3/2026Summit Global Investments3,574$0.29M0.0%N/A0.015%Search for SEC Filing on Google Icon
7/8/2026Assenagon Asset Management S.A.12,238$1M0.0%-73.8%0.051%Search for SEC Filing on Google Icon
6/18/2026Pacer Advisors Inc.5,653$0.32M0.0%+74.2%0.024%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE129,113$7.36M0.0%+38.3%0.543%Search for SEC Filing on Google Icon
5/19/2026Edgestream Partners L.P.19,015$1.08M0.0%N/A0.080%Search for SEC Filing on Google Icon
5/18/2026Amundi14,082$0.80M0.0%+16.9%0.059%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System22,967$1.31M0.0%-0.8%0.097%Search for SEC Filing on Google Icon
5/18/2026Royal Bank of Canada13,059$0.75M0.0%-21.5%0.055%Search for SEC Filing on Google Icon
5/18/2026Rubric Capital Management LP486,400$27.74M0.3%-56.7%2.045%Search for SEC Filing on Google Icon
5/16/2026American Capital Management Inc.627,705$35.79M1.9%-0.6%2.638%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company9,537$0.54M0.0%-4.1%0.040%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP27,716$1.58M0.0%+98.9%0.116%Search for SEC Filing on Google Icon
5/16/2026Polar Asset Management Partners Inc.60,369$3.44M0.1%-27.6%0.254%Search for SEC Filing on Google Icon
5/16/2026Lazard Asset Management LLC99,333$5.66M0.0%+31.4%0.418%Search for SEC Filing on Google Icon
5/15/2026Rice Hall James & Associates LLC113,589$6.48M0.4%-0.9%0.477%Search for SEC Filing on Google Icon
5/14/2026Renaissance Technologies LLC520,251$29.67M0.0%+5.4%2.187%Search for SEC Filing on Google Icon
5/14/2026Arrowstreet Capital Limited Partnership463,780$26.45M0.0%+0.7%1.949%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.8,819$0.50M0.0%N/A0.037%Search for SEC Filing on Google Icon
5/14/2026State of Wyoming3,436$0.20M0.0%-52.6%0.014%Search for SEC Filing on Google Icon
5/13/2026First Trust Advisors LP92,870$5.30M0.0%-12.3%0.390%Search for SEC Filing on Google Icon
5/8/2026Summit Global Investments12,720$0.73M0.0%+36.0%0.053%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP1,272,356$72.55M0.0%-0.3%5.347%Search for SEC Filing on Google Icon
5/6/2026Angeles Wealth Management LLC4,490$0.26M0.0%N/A0.019%Search for SEC Filing on Google Icon
5/6/2026Independent Financial Group LLC3,965$0.23M0.0%N/A0.017%Search for SEC Filing on Google Icon
5/5/2026Bastion Asset Management Inc.28,270$1.61M0.5%N/A0.119%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp139,917$7.98M0.0%-2.2%0.588%Search for SEC Filing on Google Icon
5/5/2026Illinois Municipal Retirement Fund12,871$0.73M0.0%+2.4%0.054%Search for SEC Filing on Google Icon
5/5/2026Hillsdale Investment Management Inc.174,384$9.94M0.3%+3.6%0.733%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.133,613$7.62M0.0%-2.2%0.562%Search for SEC Filing on Google Icon
5/1/2026Fifth Third Bancorp5,129$0.29M0.0%+3,537.6%0.022%Search for SEC Filing on Google Icon
4/30/2026Hsbc Holdings PLC15,378$0.87M0.0%+12.9%0.065%Search for SEC Filing on Google Icon
4/27/2026New York State Teachers Retirement System11,536$0.66M0.0%-50.9%0.048%Search for SEC Filing on Google Icon
4/25/2026Strs Ohio13,200$0.75M0.0%-5.7%0.055%Search for SEC Filing on Google Icon
4/22/2026Janney Montgomery Scott LLC7,233$0.41M0.0%-7.9%0.030%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA3,774$0.22M0.0%N/A0.016%Search for SEC Filing on Google Icon
4/22/2026Sterling Capital Management LLC789$45K0.0%-42.5%0.003%Search for SEC Filing on Google Icon
4/21/2026Louisiana State Employees Retirement System10,500$0.60M0.0%N/A0.044%Search for SEC Filing on Google Icon
4/20/2026Assenagon Asset Management S.A.46,776$2.67M0.0%+68.6%0.197%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC6,429$0.37M0.0%-78.7%0.027%Search for SEC Filing on Google Icon
4/16/2026Diversified Trust Co11,795$0.67M0.0%+12.4%0.050%Search for SEC Filing on Google Icon
3/20/2026Hsbc Holdings PLC13,624$0.69M0.0%+45.4%0.057%Search for SEC Filing on Google Icon
3/9/2026Auto Owners Insurance Co227,655$11.52M0.0%+4,959.0%0.958%Search for SEC Filing on Google Icon
2/24/2026Pacer Advisors Inc.3,246$0.16M0.0%-60.5%0.014%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.107,698$5.45M0.0%+5.2%0.455%Search for SEC Filing on Google Icon
2/18/2026Summit Global Investments9,350$0.47M0.0%N/A0.039%Search for SEC Filing on Google Icon
2/18/2026State of Tennessee Department of Treasury17,728$0.93M0.0%+82.1%0.075%Search for SEC Filing on Google Icon
2/18/2026Empowered Funds LLC112,876$5.71M0.0%+4.0%0.477%Search for SEC Filing on Google Icon
2/18/2026Zacks Investment Management6,416$0.33M0.0%N/A0.027%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC101,532$5.14M0.0%-2.5%0.429%Search for SEC Filing on Google Icon
2/18/2026Gotham Asset Management LLC11,170$0.57M0.0%-16.3%0.047%Search for SEC Filing on Google Icon
2/18/2026Bridgeway Capital Management LLC113,876$5.76M0.1%+4.0%0.481%Search for SEC Filing on Google Icon
2/17/2026Guggenheim Capital LLC9,826$0.50M0.0%N/A0.041%Search for SEC Filing on Google Icon
2/17/2026American Capital Management Inc.631,311$31.94M1.4%+126.0%2.666%Search for SEC Filing on Google Icon
2/17/2026Polar Asset Management Partners Inc.83,402$4.22M0.1%-35.1%0.352%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC51,260$2.59M0.0%+61.0%0.216%Search for SEC Filing on Google Icon
2/17/2026Lazard Asset Management LLC75,574$3.82M0.0%-16.6%0.319%Search for SEC Filing on Google Icon
2/17/2026Trexquant Investment LP27,627$1.40M0.0%N/A0.117%Search for SEC Filing on Google Icon
2/17/2026Amundi12,051$0.61M0.0%+29.6%0.051%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD28,034$1.42M0.0%+2.9%0.118%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board13,259$0.67M0.0%+42.1%0.056%Search for SEC Filing on Google Icon
2/17/2026ExodusPoint Capital Management LP7,247$0.37M0.0%+56.0%0.031%Search for SEC Filing on Google Icon
2/17/2026Rice Hall James & Associates LLC114,563$5.80M0.3%-6.1%0.484%Search for SEC Filing on Google Icon
2/16/2026Truvestments Capital LLC11,106$0.56M0.1%+18.0%0.047%Search for SEC Filing on Google Icon
2/16/2026Verition Fund Management LLC14,600$0.74M0.0%-7.1%0.062%Search for SEC Filing on Google Icon
2/16/2026Panagora Asset Management Inc.175,585$8.88M0.0%+4.3%0.741%Search for SEC Filing on Google Icon
2/16/2026S Squared Technology LLC306,103$15.49M6.0%-1.6%1.293%Search for SEC Filing on Google Icon
2/16/2026Mariner LLC4,527$0.23M0.0%N/A0.019%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC38,149$1.93M0.0%+11.4%0.161%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 9,942$0.50M0.0%-6.9%0.042%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Proto Labs logo
Proto Labs, Inc., together with its subsidiaries, operates as a digital manufacturer of custom parts in the United States and Europe. The company offers injection molding; computer numerical control machining; three-dimensional printing; and sheet metal fabrication products. It serves developers and engineers, who use 3D computer-aided design software to design products across a range of end-markets. Proto Labs, Inc. was incorporated in 1999 and is headquartered in Maple Plain, Minnesota.
Read More on Proto Labs

Today's Range

Now: $86.66
Low: $83.84
High: $86.88

50 Day Range

MA: $81.14
Low: $71.60
High: $92.38

52 Week Range

Now: $86.66
Low: $45.10
High: $93.00

Volume

334,407 shs

Average Volume

162,805 shs

Market Capitalization

$2.07 billion

P/E Ratio

69.33

Dividend Yield

N/A

Beta

1.42

Who are the company insiders with the largest holdings of Proto Labs?

Proto Labs' top insider investors include:
  1. Lawrence Lukis (Chairman)
  2. Robert Bodor (CEO)
  3. Victoria M Holt (CEO)
  4. Margaret Loftus (Director)
  5. Victoria M Holt (Insider)
  6. Michael R Kenison (Insider)
  7. Sven Wehrwein (Director)
  8. John B Tumelty (Director)
  9. John Way (CFO)
  10. Rainer Gawlick (Director)
Learn More about top insider investors at Proto Labs.

Who are the major institutional investors of Proto Labs?

Proto Labs' top institutional shareholders include:
  1. BlackRock Inc. — 16.29%
  2. XXEC Inc. — 5.27%
  3. American Capital Management Inc. — 2.59%
  4. North Star Asset Management Inc. — 1.45%
  5. XXEC Inc. — 1.30%
  6. S Squared Technology LLC — 1.20%
Learn More about top institutional investors of Proto Labs stock.

Which institutional investors are selling Proto Labs stock?

During the previous quarter, PRLB stock was sold by these institutional investors:
  1. Assenagon Asset Management S.A.
  2. Squarepoint Ops LLC
  3. Tidal Investments LLC
  4. WINTON GROUP Ltd
  5. Amundi
  6. UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
Within the last year, company insiders that have sold Proto Labs company stock include:
  1. Michael R Kenison (Insider)
  2. Sven Wehrwein (Director)
Learn More investors selling Proto Labs stock.

Which institutional investors are buying Proto Labs stock?

During the previous quarter, PRLB stock was acquired by institutional investors including:
  1. BlackRock Inc.
  2. XXEC Inc.
  3. American Capital Management Inc.
  4. North Star Asset Management Inc.
  5. S Squared Technology LLC
  6. XXEC Inc.
  7. Dearborn Partners LLC
  8. Bank of New York Mellon Corp

Proto Labs Active Insiders

Robert Bodor
Robert Bodor (Age 53)
CEO
Suresh Krishna
Suresh Krishna (Age 57)
CEO
Arthur R Baker III
Arthur R Baker III (Age 58)
CTO
Sven Wehrwein
Director
1 recent trades
Michael R Kenison
Michael R Kenison (Age 54)
Insider
3 recent trades