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PRLB Insider Trading

Insider Ownership Percentage: 1.70%
Insider Buying (Last 12 Months): $75,054.75
Insider Selling (Last 12 Months): $302,918.16

Proto Labs Insider Trading History Chart

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

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Proto Labs Share Price & Price History

Current Price: $55.64
Price Change: ▼ Price Decrease of -1.008 (-1.78%)
As of 03/20/2026 04:59 PM ET

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

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Days: 30 | 90 | 365

Proto Labs Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
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  
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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.

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Proto Labs Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
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
2/13/2026Public Sector Pension Investment Board110,351$5.58M0.0%-2.4%0.466%Search for SEC Filing on Google Icon
2/13/2026Essex Investment Management Co. LLC15,504$0.78M0.1%-25.8%0.065%Search for SEC Filing on Google Icon
2/13/2026First Trust Advisors LP105,929$5.36M0.0%+26.5%0.447%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.363,013$18.37M0.0%+9.5%1.533%Search for SEC Filing on Google Icon
2/13/2026Police & Firemen s Retirement System of New Jersey6,008$0.30M0.0%-10.0%0.025%Search for SEC Filing on Google Icon
2/13/2026State Street Corp1,088,206$55.05M0.0%-7.4%4.595%Search for SEC Filing on Google Icon
2/13/2026Ieq Capital LLC6,155$0.31M0.0%N/A0.026%Search for SEC Filing on Google Icon
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC64,643$3.27M0.0%+7.3%0.273%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN29,974$1.52M0.0%+37.3%0.127%Search for SEC Filing on Google Icon
2/13/2026Gagnon Securities LLC111,548$5.64M1.1%+2.6%0.471%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC13,537$0.69M0.0%-6.6%0.057%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC493,551$24.97M0.0%-9.2%2.084%Search for SEC Filing on Google Icon
2/12/2026Dimensional Fund Advisors LP1,276,561$64.58M0.0%-2.3%5.391%Search for SEC Filing on Google Icon
2/12/2026Federated Hermes Inc.30,748$1.56M0.0%+1.5%0.130%Search for SEC Filing on Google Icon
2/12/2026Haven Private LLC8,313$0.42M0.2%N/A0.035%Search for SEC Filing on Google Icon
2/12/2026Steward Partners Investment Advisory LLC8,000$0.41M0.0%N/A0.034%Search for SEC Filing on Google Icon
2/12/2026Campbell & CO Investment Adviser LLC41,520$2.10M0.1%+60.5%0.175%Search for SEC Filing on Google Icon
2/12/2026Bank of Montreal Can3,984$0.20M0.0%N/A0.017%Search for SEC Filing on Google Icon
2/12/2026Alps Advisors Inc.17,713$0.90M0.0%-7.8%0.075%Search for SEC Filing on Google Icon
2/12/2026Swiss National Bank47,100$2.38M0.0%+2.2%0.199%Search for SEC Filing on Google Icon
2/12/2026Polen Capital Management LLC4,148$0.21M0.0%N/A0.018%Search for SEC Filing on Google Icon
2/12/2026Nuveen LLC325,750$16.48M0.0%-1.3%1.376%Search for SEC Filing on Google Icon
2/12/2026Group One Trading LLC500$25K0.0%N/A0.002%Search for SEC Filing on Google Icon
2/11/2026ARK Investment Management LLC56,744$2.87M0.0%-21.0%0.240%Search for SEC Filing on Google Icon
2/11/2026Empowered Funds LLC112,876$5.71M0.0%+4.0%0.477%Search for SEC Filing on Google Icon
2/11/2026Janney Montgomery Scott LLC7,850$0.40M0.0%-17.3%0.033%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG27,768$1.41M0.0%-80.5%0.117%Search for SEC Filing on Google Icon
2/11/2026Cerity Partners LLC4,221$0.21M0.0%N/A0.018%Search for SEC Filing on Google Icon
2/11/2026Franklin Resources Inc.32,937$1.67M0.0%+8.5%0.139%Search for SEC Filing on Google Icon
2/11/2026JPMorgan Chase & Co.118,635$6M0.0%+35.8%0.501%Search for SEC Filing on Google Icon
2/11/2026Modus Advisors LLC1,133$57K0.0%N/A0.005%Search for SEC Filing on Google Icon
2/11/2026State of Wyoming7,254$0.37M0.0%+429.5%0.031%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.160,604$8.13M0.0%+11.2%0.678%Search for SEC Filing on Google Icon
2/10/2026Commonwealth of Pennsylvania Public School Empls Retrmt SYS5,862$0.30M0.0%-3.6%0.025%Search for SEC Filing on Google Icon
2/10/2026Hillsdale Investment Management Inc.168,284$8.51M0.2%-0.8%0.711%Search for SEC Filing on Google Icon
2/10/2026Intech Investment Management LLC10,005$0.51M0.0%-34.7%0.042%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC558,300$28.25M0.0%-1.5%2.358%Search for SEC Filing on Google Icon
2/9/2026Jackson Creek Investment Advisors LLC8,405$0.43M0.1%N/A0.035%Search for SEC Filing on Google Icon
2/6/2026Leonteq Securities AG5,000$0.25M0.0%N/A0.021%Search for SEC Filing on Google Icon
2/5/2026Gabelli Funds LLC21,132$1.07M0.0%-5.3%0.089%Search for SEC Filing on Google Icon
2/4/2026VIRGINIA RETIREMENT SYSTEMS ET Al23,400$1.18M0.0%-9.7%0.099%Search for SEC Filing on Google Icon
2/4/2026Argos Wealth Advisors LLC8,173$0.41M0.1%N/A0.035%Search for SEC Filing on Google Icon
2/4/2026Versor Investments LP14,599$0.74M0.1%+52.1%0.062%Search for SEC Filing on Google Icon
2/4/2026Bailard Inc.13,281$0.67M0.0%-18.0%0.056%Search for SEC Filing on Google Icon
2/2/2026Strs Ohio14,000$0.71M0.0%-3.4%0.059%Search for SEC Filing on Google Icon
2/2/2026Horizon Investments LLC11,886$0.60M0.0%+3.4%0.050%Search for SEC Filing on Google Icon
1/29/2026Comerica Bank5,082$0.26M0.0%-21.8%0.021%Search for SEC Filing on Google Icon
1/29/2026UBS Group AG175,416$8.87M0.0%-0.8%0.741%Search for SEC Filing on Google Icon
1/29/2026Teachers Retirement System of The State of Kentucky6,120$0.31M0.0%-11.0%0.026%Search for SEC Filing on Google Icon
1/29/2026Vanguard Group Inc.2,666,227$134.88M0.0%-2.9%11.259%Search for SEC Filing on Google Icon
1/29/2026NBC Securities Inc.906$46K0.0%N/A0.004%Search for SEC Filing on Google Icon
1/28/2026Arizona State Retirement System6,653$0.34M0.0%-5.4%0.028%Search for SEC Filing on Google Icon
1/27/2026Round Rock Advisors LLC11,219$0.59M0.1%+69.7%0.047%Search for SEC Filing on Google Icon
1/26/2026CWM LLC3,221$0.16M0.0%+24.4%0.014%Search for SEC Filing on Google Icon
1/21/2026Yousif Capital Management LLC6,490$0.34M0.0%-12.9%0.027%Search for SEC Filing on Google Icon
1/9/2026SG Americas Securities LLC30,155$1.53M0.0%+40.8%0.127%Search for SEC Filing on Google Icon
1/9/2026Diversified Trust Co.10,495$0.53M0.0%+4.7%0.044%Search for SEC Filing on Google Icon
1/8/2026Nordea Investment Management AB224,439$11.51M0.0%-12.8%0.948%Search for SEC Filing on Google Icon
1/7/2026CWA Asset Management Group LLC41,508$2.10M0.1%+3.1%0.175%Search for SEC Filing on Google Icon
1/1/2026JPMorgan Chase & Co.87,339$4.37M0.0%+301.4%0.369%Search for SEC Filing on Google Icon
12/1/2025Polar Asset Management Partners Inc.128,429$6.43M0.1%N/A0.542%Search for SEC Filing on Google Icon
11/19/2025Auto Owners Insurance Co4,500$0.23M0.0%N/A0.019%Search for SEC Filing on Google Icon
11/17/2025CANADA LIFE ASSURANCE Co19,845$0.99M0.0%-7.2%0.084%Search for SEC Filing on Google Icon
11/17/2025Dark Forest Capital Management LP46,204$2.31M0.1%+18.8%0.195%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC15,718$0.79M0.0%-30.5%0.066%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd73,657$3.69M0.0%-21.2%0.311%Search for SEC Filing on Google Icon
11/17/2025Prelude Capital Management LLC5,282$0.26M0.0%N/A0.022%Search for SEC Filing on Google Icon
11/17/2025Mercer Global Advisors Inc. ADV5,826$0.29M0.0%N/A0.025%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC104,168$5.21M0.0%-32.9%0.440%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.12,362$0.62M0.0%-16.0%0.052%Search for SEC Filing on Google Icon
11/17/2025Gotham Asset Management LLC13,339$0.67M0.0%-14.1%0.056%Search for SEC Filing on Google Icon
Data available starting January 2016

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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: $55.64
Low: $55.12
High: $57.48

50 Day Range

MA: $58.71
Low: $51.90
High: $67.48

52 Week Range

Now: $55.64
Low: $29.58
High: $68.91

Volume

295,386 shs

Average Volume

166,924 shs

Market Capitalization

$1.32 billion

P/E Ratio

63.23

Dividend Yield

N/A

Beta

1.25

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

Proto Labs' top insider investors include:
  1. Robert Bodor (CEO)
  2. Michael R Kenison (Insider)
  3. Suresh Krishna (CEO)
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. Vanguard Group Inc. — 11.26%
  2. Dimensional Fund Advisors LP — 5.39%
  3. State Street Corp — 4.60%
  4. American Capital Management Inc. — 2.67%
  5. Geode Capital Management LLC — 2.36%
  6. Renaissance Technologies LLC — 2.08%
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. Deutsche Bank AG
  2. State Street Corp
  3. Vanguard Group Inc.
  4. Renaissance Technologies LLC
  5. Polar Asset Management Partners Inc.
  6. Nordea Investment Management AB
  7. Dimensional Fund Advisors LP
  8. ARK Investment Management LLC

Which institutional investors are buying Proto Labs stock?

During the previous quarter, PRLB stock was bought by institutional investors including:
  1. American Capital Management Inc.
  2. Auto Owners Insurance Co
  3. Charles Schwab Investment Management Inc.
  4. JPMorgan Chase & Co.
  5. Trexquant Investment LP
  6. First Trust Advisors LP
  7. AQR Capital Management LLC
  8. Goldman Sachs Group Inc.
During the previous year, these company insiders have bought Proto Labs stock:
  1. Robert Bodor (CEO)
  2. Michael R Kenison (Insider)
Learn More investors buying Proto Labs stock.