InsiderTrades.com logo

MLAB Insider Trading

Insider Ownership Percentage: 4.40%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $3,075,580.16

Mesa Laboratories Insider Trading History Chart

This chart shows the insider buying and selling history at Mesa Laboratories by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Mesa Laboratories Share Price & Price History

Current Price: $111.02
Price Change: ▼ Price Decrease of -0.95 (-0.85%)
As of 05/22/2025 05:00 PM ET

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

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

Mesa Laboratories Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
3/19/2025Gary M. OwensCEOSell21,000$123.91$2,602,110.0043,337View SEC Filing Icon  
10/28/2024Gary M. OwensCEOSell2,518$113.62$286,095.1645,888View SEC Filing Icon  
9/13/2024Brian David ArchboldSVPSell1,499$125.00$187,375.00View SEC Filing Icon  
12/15/2023Brian David ArchboldSVPSell1,500$112.36$168,540.00558View SEC Filing Icon  
9/15/2023John Bradley SchmiederDirectorSell1,000$123.74$123,740.0062,760View SEC Filing Icon  
9/13/2023John Bradley SchmiederDirectorSell3,000$123.32$369,960.0066,760View SEC Filing Icon  
9/1/2023Gary M. OwensCEOSell2,000$142.82$285,640.0030,032View SEC Filing Icon  
3/24/2023John SakysCFOSell2,128$167.01$355,397.289,696View SEC Filing Icon  
3/22/2023John SakysCFOSell2,500$171.62$429,050.009,696View SEC Filing Icon  
3/15/2023John SakysCFOSell1,000$165.71$165,710.009,696View SEC Filing Icon  
3/9/2023John SakysCFOSell400$169.97$67,988.009,696View SEC Filing Icon  
2/9/2023John SakysCFOSell1,000$184.27$184,270.009,696View SEC Filing Icon  
1/23/2023John SakysCFOSell2,100$210.19$441,399.009,696View SEC Filing Icon  
1/13/2023John Bradley SchmiederDirectorSell1,571$191.31$300,548.0168,976View SEC Filing Icon  
12/8/2022Shannon HallDirectorSell230$174.97$40,243.10957View SEC Filing Icon  
11/11/2022John Bradley SchmiederDirectorSell2,500$175.45$438,625.0068,976View SEC Filing Icon  
8/18/2022Evan GuilleminDirectorSell3,692$196.12$724,075.0428,776View SEC Filing Icon  
6/21/2022Brian David ArchboldSVPSell392$188.22$73,782.24813View SEC Filing Icon  
6/21/2022Gary M. OwensCEOSell1,756$188.22$330,514.3221,640View SEC Filing Icon  
6/21/2022John SakysCFOSell722$188.22$135,894.848,678View SEC Filing Icon  
6/7/2022John James SullivanDirectorSell5,192$207.76$1,078,689.9223,857View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Mesa Laboratories (NASDAQ:MLAB)

90.60% of Mesa Laboratories 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 MLAB by year and by quarter.

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

Mesa Laboratories Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
5/19/2025Jane Street Group LLC7,019$0.83M0.0%-79.6%0.129%Search for SEC Filing on Google Icon
5/19/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC19,977$2.37M0.0%+3.6%0.368%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.15,334$1.82M0.0%-48.8%0.282%Search for SEC Filing on Google Icon
5/16/2025Select Equity Group L.P.73,897$8.77M0.0%+439.0%1.360%Search for SEC Filing on Google Icon
5/16/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.3,068$0.36M0.0%+4.9%0.056%Search for SEC Filing on Google Icon
5/16/2025Jacobs Levy Equity Management Inc.2,820$0.34M0.0%N/A0.052%Search for SEC Filing on Google Icon
5/16/2025AQR Capital Management LLC8,156$0.97M0.0%-25.1%0.150%Search for SEC Filing on Google Icon
5/15/2025Royal Bank of Canada30,772$3.65M0.0%+1.2%0.566%Search for SEC Filing on Google Icon
5/15/2025State of Wyoming427$51K0.0%+501.4%0.008%Search for SEC Filing on Google Icon
5/14/2025Keeley Teton Advisors LLC15,678$1.86M0.2%-28.7%0.289%Search for SEC Filing on Google Icon
5/14/2025Comerica Bank44,285$5.26M0.0%+4.4%0.815%Search for SEC Filing on Google Icon
5/14/2025Quantbot Technologies LP567$67K0.0%N/A0.010%Search for SEC Filing on Google Icon
5/13/2025Northern Trust Corp82,444$9.78M0.0%-12.1%1.517%Search for SEC Filing on Google Icon
5/13/2025Meros Investment Management LP31,964$3.79M2.2%-20.6%0.588%Search for SEC Filing on Google Icon
5/13/2025Raymond James Financial Inc.264,013$31.33M0.0%+6.5%4.859%Search for SEC Filing on Google Icon
5/13/2025American Century Companies Inc.13,237$1.57M0.0%+40.2%0.244%Search for SEC Filing on Google Icon
5/13/2025Resona Asset Management Co. Ltd.595$71K0.0%-14.4%0.011%Search for SEC Filing on Google Icon
5/12/2025Public Sector Pension Investment Board17,256$2.05M0.0%+27.1%0.318%Search for SEC Filing on Google Icon
5/12/2025Nuveen LLC19,424$2.31M0.0%N/A0.357%Search for SEC Filing on Google Icon
5/12/2025Invesco Ltd.17,929$2.13M0.0%-3.1%0.330%Search for SEC Filing on Google Icon
5/12/2025Herald Investment Management Ltd12,500$1.48M0.3%+68.5%0.230%Search for SEC Filing on Google Icon
5/9/2025Deutsche Bank AG4,703$0.56M0.0%-8.6%0.087%Search for SEC Filing on Google Icon
5/9/2025Charles Schwab Investment Management Inc.65,464$7.77M0.0%+4.6%1.205%Search for SEC Filing on Google Icon
5/9/2025Vanguard Group Inc.384,613$45.64M0.0%+0.5%7.078%Search for SEC Filing on Google Icon
5/9/2025Geneva Capital Management LLC189,312$22.46M0.4%+0.2%3.484%Search for SEC Filing on Google Icon
5/8/2025US Bancorp DE1,323$0.16M0.0%+48.3%0.024%Search for SEC Filing on Google Icon
5/7/2025Mackenzie Financial Corp5,247$0.62M0.0%-30.4%0.097%Search for SEC Filing on Google Icon
5/6/2025Pacer Advisors Inc.1,572$0.19M0.0%-10.4%0.029%Search for SEC Filing on Google Icon
5/6/2025Avantax Advisory Services Inc.2,036$0.24M0.0%+22.4%0.037%Search for SEC Filing on Google Icon
5/6/2025Royce & Associates LP271,118$32.17M0.3%-5.6%4.989%Search for SEC Filing on Google Icon
5/6/2025Diamond Hill Capital Management Inc.29,458$3.50M0.0%+10.6%0.542%Search for SEC Filing on Google Icon
5/6/2025Choreo LLC4,887$0.58M0.0%-3.3%0.090%Search for SEC Filing on Google Icon
5/2/2025Segall Bryant & Hamill LLC20,010$2.37M0.0%-2.2%0.368%Search for SEC Filing on Google Icon
5/2/2025Victory Capital Management Inc.8,706$1.03M0.0%-1.5%0.160%Search for SEC Filing on Google Icon
5/1/2025Rice Hall James & Associates LLC27,375$3.25M0.2%-1.1%0.504%Search for SEC Filing on Google Icon
4/29/2025Envestnet Asset Management Inc.19,058$2.26M0.0%+8.3%0.351%Search for SEC Filing on Google Icon
4/29/2025Bank of New York Mellon Corp54,767$6.50M0.0%+2.7%1.008%Search for SEC Filing on Google Icon
4/28/2025Principal Financial Group Inc.43,659$5.18M0.0%+13.8%0.803%Search for SEC Filing on Google Icon
4/22/2025Cambridge Investment Research Advisors Inc.2,296$0.27M0.0%-4.9%0.042%Search for SEC Filing on Google Icon
4/17/2025Conestoga Capital Advisors LLC571,358$67.80M1.0%-0.3%10.515%Search for SEC Filing on Google Icon
4/15/2025SG Americas Securities LLC2,461$0.29M0.0%+18.7%0.045%Search for SEC Filing on Google Icon
4/8/2025Rhumbline Advisers13,628$1.62M0.0%+4.4%0.251%Search for SEC Filing on Google Icon
4/7/2025GAMMA Investing LLC18,036$2.14M0.0%+14,805.8%0.332%Search for SEC Filing on Google Icon
4/4/2025Kings Path Partners LLC4,161$0.49M0.2%-38.6%0.077%Search for SEC Filing on Google Icon
3/24/2025Wellington Management Group LLP14,314$1.89M0.0%N/A0.263%Search for SEC Filing on Google Icon
2/20/2025Mackenzie Financial Corp7,537$0.99M0.0%+26.1%0.139%Search for SEC Filing on Google Icon
2/17/2025UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC19,292$2.54M0.0%+91.0%0.355%Search for SEC Filing on Google Icon
2/17/2025Squarepoint Ops LLC2,225$0.29M0.0%N/A0.041%Search for SEC Filing on Google Icon
2/17/2025Select Equity Group L.P.13,711$1.81M0.0%+5.3%0.253%Search for SEC Filing on Google Icon
2/17/2025ProShare Advisors LLC1,558$0.21M0.0%N/A0.029%Search for SEC Filing on Google Icon
2/17/2025Meros Investment Management LP40,263$5.31M2.4%+21.1%0.741%Search for SEC Filing on Google Icon
2/17/2025Millennium Management LLC4,832$0.64M0.0%+61.0%0.089%Search for SEC Filing on Google Icon
2/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.2,925$0.39M0.0%+3.5%0.054%Search for SEC Filing on Google Icon
2/17/2025Janus Henderson Group PLC86,286$11.38M0.0%+10.3%1.589%Search for SEC Filing on Google Icon
2/17/2025Deutsche Bank AG5,147$0.68M0.0%+44.5%0.095%Search for SEC Filing on Google Icon
2/17/2025Citadel Advisors LLC6,817$0.90M0.0%-36.4%0.126%Search for SEC Filing on Google Icon
2/17/2025Bank of America Corp DE68,474$9.03M0.0%+27.7%1.261%Search for SEC Filing on Google Icon
2/17/2025BNP Paribas Financial Markets714$94K0.0%-49.7%0.013%Search for SEC Filing on Google Icon
2/17/2025Ameriprise Financial Inc.151,862$20.03M0.0%+191.8%2.797%Search for SEC Filing on Google Icon
2/14/2025Jane Street Group LLC34,399$4.54M0.0%+1,390.4%0.633%Search for SEC Filing on Google Icon
2/14/2025Northern Trust Corp93,789$12.37M0.0%+2.0%1.726%Search for SEC Filing on Google Icon
2/14/2025The Manufacturers Life Insurance Company1,936$0.26M0.0%-5.0%0.036%Search for SEC Filing on Google Icon
2/14/2025Voya Investment Management LLC1,567$0.21M0.0%-9.5%0.029%Search for SEC Filing on Google Icon
2/14/2025Price T Rowe Associates Inc. MD3,469$0.46M0.0%+12.7%0.064%Search for SEC Filing on Google Icon
2/14/2025State of Tennessee Department of Treasury3,506$0.46M0.0%-14.6%0.065%Search for SEC Filing on Google Icon
2/14/2025Tower Research Capital LLC TRC1,328$0.18M0.0%+72.9%0.024%Search for SEC Filing on Google Icon
2/14/2025Dimensional Fund Advisors LP113,850$15.01M0.0%-7.9%2.097%Search for SEC Filing on Google Icon
2/14/2025Herald Investment Management Ltd7,417$0.98M0.2%N/A0.137%Search for SEC Filing on Google Icon
2/13/2025CANADA LIFE ASSURANCE Co6,927$0.91M0.0%-7.7%0.128%Search for SEC Filing on Google Icon
2/13/2025Marshall Wace LLP3,476$0.46M0.0%-59.4%0.064%Search for SEC Filing on Google Icon
2/13/2025Teton Advisors Inc.1,600$0.21M0.1%-20.0%0.029%Search for SEC Filing on Google Icon
2/13/2025Keeley Teton Advisors LLC21,997$2.90M0.3%-4.0%0.405%Search for SEC Filing on Google Icon
2/13/2025XTX Topco Ltd3,382$0.45M0.0%+13.3%0.062%Search for SEC Filing on Google Icon
2/13/2025Barclays PLC9,262$1.22M0.0%+4.8%0.171%Search for SEC Filing on Google Icon
2/13/2025Kennedy Capital Management LLC74,606$9.84M0.2%+13.2%1.374%Search for SEC Filing on Google Icon
2/13/2025Ranger Investment Management L.P.233,555$30.80M1.9%-1.9%4.301%Search for SEC Filing on Google Icon
2/13/2025Raymond James Financial Inc.247,795$32.68M0.0%N/A4.563%Search for SEC Filing on Google Icon
2/13/2025Renaissance Technologies LLC7,500$0.99M0.0%-44.0%0.138%Search for SEC Filing on Google Icon
2/13/2025Legal & General Group Plc14,287$1.88M0.0%-9.0%0.263%Search for SEC Filing on Google Icon
2/13/2025Envestnet Asset Management Inc.17,595$2.32M0.0%-0.8%0.324%Search for SEC Filing on Google Icon
2/13/2025Wells Fargo & Company MN29,303$3.86M0.0%-4.9%0.540%Search for SEC Filing on Google Icon
2/13/2025Resona Asset Management Co. Ltd.695$92K0.0%N/A0.013%Search for SEC Filing on Google Icon
2/12/2025ExodusPoint Capital Management LP9,692$1.28M0.0%+283.8%0.178%Search for SEC Filing on Google Icon
2/12/2025Geode Capital Management LLC124,446$16.42M0.0%-0.3%2.292%Search for SEC Filing on Google Icon
2/12/2025Franklin Resources Inc.3,291$0.43M0.0%-48.9%0.061%Search for SEC Filing on Google Icon
2/12/2025Alliancebernstein L.P.5,584$0.74M0.0%+2.6%0.103%Search for SEC Filing on Google Icon
2/12/2025Wellington Management Group LLP14,314$1.89M0.0%N/A0.264%Search for SEC Filing on Google Icon
2/12/2025JPMorgan Chase & Co.5,003$0.66M0.0%-40.5%0.092%Search for SEC Filing on Google Icon
2/11/2025Corebridge Financial Inc.2,753$0.36M0.0%-7.3%0.051%Search for SEC Filing on Google Icon
2/11/2025Vanguard Group Inc.382,856$50.49M0.0%+1.4%7.051%Search for SEC Filing on Google Icon
2/11/2025KLP Kapitalforvaltning AS1,000$0.13M0.0%N/A0.018%Search for SEC Filing on Google Icon
2/11/2025Sei Investments Co.5,411$0.71M0.0%+246.2%0.100%Search for SEC Filing on Google Icon
2/11/2025American Century Companies Inc.9,444$1.25M0.0%+99.0%0.174%Search for SEC Filing on Google Icon
2/11/2025Boston Partners4,627$0.61M0.0%-44.6%0.085%Search for SEC Filing on Google Icon
2/10/2025Royce & Associates LP287,207$37.87M0.4%-17.3%5.285%Search for SEC Filing on Google Icon
2/10/2025Diamond Hill Capital Management Inc.26,634$3.51M0.0%N/A0.490%Search for SEC Filing on Google Icon
2/10/2025Avantax Advisory Services Inc.1,663$0.22M0.0%-22.7%0.031%Search for SEC Filing on Google Icon
2/7/2025Amundi661$91K0.0%+81.6%0.012%Search for SEC Filing on Google Icon
2/6/2025Geneva Capital Management LLC189,013$24.93M0.4%-1.5%3.480%Search for SEC Filing on Google Icon
2/6/2025Raymond James Financial Inc.247,795$32.68M0.0%N/A4.563%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Mesa Laboratories logo
Mesa Laboratories, Inc. develops, designs, manufactures, sells, and services life sciences tools and quality control products and services in North America, Europe, the Asia Pacific, and internationally. The Sterilization and Disinfection Control segment offers biological, chemical, and cleaning indicators, used to assess the effectiveness of sterilization decontamination, disinfection, and cleaning processes in the pharmaceutical, medical device, and healthcare industries. This segment also provides testing and laboratory services to the dental and pharmaceutical industries. The Clinical Genomics segment offers MassARRAY, a genetic analysis tool system, and related consumables, including chips, panels, and chemical reagent solutions used by clinical labs to analyze DNA samples for inherited genetic disease testing, pharmacogenetics, oncology testing, infectious disease testing, doping and toxicology testing, and other differentiated applications for use in research. The Biopharmaceutical Development segment provides automated systems, such as Gyrolab xPand and Gyrolab xPlore hardware and software, Gyrolab Bioaffy consumable microfluidic disks, Gyrolab kits and Rexxip buffers for protein analysis; PurePep Chorus and Symphony instruments for peptide synthesis; and PurePep EasyClean products for purifying peptides. The Calibration Solutions segment offers quality control products to measure and calibrate critical parameters in applications, such as environmental and process monitoring, dialysis, gas flow, air quality, and torque testing in medical device and pharmaceutical manufacturing, laboratory, and hospital environments. This segment's products include continuous monitoring systems, dialysate meters and consumables, data loggers, gas flow calibration and air sampling equipment, and torque testing systems, offered under DialyGuard, ViewPoint, DataTrace, DryCal, and BGI brands. The company was incorporated in 1982 and is headquartered in Lakewood, Colorado.
Read More on Mesa Laboratories

Today's Range

Now: $111.02
Low: $110.01
High: $112.95

50 Day Range

MA: $117.81
Low: $105.24
High: $128.67

52 Week Range

Now: $111.02
Low: $83.68
High: $155.12

Volume

31,019 shs

Average Volume

40,003 shs

Market Capitalization

$603.28 million

P/E Ratio

N/A

Dividend Yield

0.55%

Beta

0.97

Who are the company insiders with the largest holdings of Mesa Laboratories?

Mesa Laboratories' top insider shareholders include:
  1. John Bradley Schmieder (Director)
  2. Gary M Owens (CEO)
  3. Brian David Archbold (SVP)
Learn More about top insider investors at Mesa Laboratories.

Who are the major institutional investors of Mesa Laboratories?

Mesa Laboratories' top institutional shareholders include:
  1. Conestoga Capital Advisors LLC — 10.51%
  2. Vanguard Group Inc. — 7.08%
  3. Royce & Associates LP — 4.99%
  4. Raymond James Financial Inc. — 4.86%
  5. Geneva Capital Management LLC — 3.48%
  6. Northern Trust Corp — 1.52%
Learn More about top institutional investors of Mesa Laboratories stock.

Which major investors are selling Mesa Laboratories stock?

In the previous quarter, MLAB stock was sold by these institutional investors:
  1. Jane Street Group LLC
  2. Royce & Associates LP
  3. Goldman Sachs Group Inc.
  4. Northern Trust Corp
  5. Meros Investment Management LP
  6. Keeley Teton Advisors LLC
  7. AQR Capital Management LLC
  8. Kings Path Partners LLC
In the previous year, company insiders that have sold Mesa Laboratories company stock include:
  1. John Bradley Schmieder (Director)
  2. Gary M Owens (CEO)
Learn More investors selling Mesa Laboratories stock.

Which major investors are buying Mesa Laboratories stock?

In the last quarter, MLAB stock was acquired by institutional investors including:
  1. Select Equity Group L.P.
  2. Nuveen LLC
  3. GAMMA Investing LLC
  4. Raymond James Financial Inc.
  5. Principal Financial Group Inc.
  6. Herald Investment Management Ltd
  7. American Century Companies Inc.
  8. Public Sector Pension Investment Board