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IDXX Insider Trading

Insider Ownership Percentage: 0.98%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $48,122,012.42

IDEXX Laboratories Insider Trading History Chart

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

Skip ChartChart Data in Insider Trading History Table

IDEXX Laboratories Share Price & Price History

Current Price: $632.56
Price Change: ▼ Price Decrease of -7.04 (-1.10%)
As of 02/3/2026 05:00 PM ET

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

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

IDEXX Laboratories Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
11/7/2025Nimrata HuntEVPSell9,425$703.34$6,628,979.5021,149View SEC Filing Icon  
8/22/2025M. Anne SzostakDirectorSell2,187$647.33$1,415,710.71262View SEC Filing Icon  
8/12/2025Michael G. EricksonEVPSell406$649.96$263,883.7611,287View SEC Filing Icon  
8/11/2025Nimrata HuntEVPSell1,200$656.53$787,836.0016,807View SEC Filing Icon  
8/8/2025Sharon E. UnderbergEVPSell5,450$651.60$3,551,220.006,156View SEC Filing Icon  
8/6/2025Jonathan Jay MazelskyCEOSell29,260$631.98$18,491,734.8083,311View SEC Filing Icon  
8/6/2025Michael LaneEVPSell8,411$627.74$5,279,921.147,132View SEC Filing Icon  
8/6/2025Nimrata HuntEVPSell7,143$630.43$4,503,161.4918,007View SEC Filing Icon  
5/21/2025M. Anne SzostakDirectorSell1,046$513.74$537,372.04262View SEC Filing Icon  
5/21/2025M. Anne SzostakDirectorSell1,260$512.34$645,548.401,801View SEC Filing Icon  
2/10/2025George FennellEVPSell9,986$462.53$4,618,824.588,176View SEC Filing Icon  
2/7/2025M. Anne SzostakDirectorSell3,000$465.94$1,397,820.003,061View SEC Filing Icon  
11/27/2024Sophie V VandebroekDirectorSell344$420.44$144,631.36905View SEC Filing Icon  
5/17/2024Bruce L. ClaflinDirectorSell200$540.80$108,160.00161View SEC Filing Icon  
2/8/2024George FennellSVPSell8,198$573.87$4,704,586.266,712View SEC Filing Icon  
2/7/2024Brian P. MckeonCFOSell23,326$570.01$13,296,053.2629,718View SEC Filing Icon  
2/7/2024Jonathan Jay MazelskyCEOSell12,000$572.61$6,871,320.0079,247View SEC Filing Icon  
12/7/2023James F PolewaczykEVPSell11,636$521.79$6,071,548.4410,050View SEC Filing Icon  
12/4/2023Jonathan Jay MazelskyCEOSell7,128$513.05$3,657,020.4079,233View SEC Filing Icon  
8/31/2023Jonathan Jay MazelskyCEOSell13,424$512.01$6,873,222.2472,925View SEC Filing Icon  
8/29/2023James F PolewaczykEVPSell22,909$510.56$11,696,419.0410,038View SEC Filing Icon  
8/3/2023Michael LaneEVPSell16,027$510.00$8,173,770.004,034View SEC Filing Icon  
5/18/2023Jonathan W AyersDirectorSell10,000$489.23$4,892,300.00137,039View SEC Filing Icon  
5/5/2023Michael LaneEVPSell1,000$484.00$484,000.004,022View SEC Filing Icon  
5/4/2023Sophie V VandebroekDirectorSell2,187$469.02$1,025,746.74872View SEC Filing Icon  
2/14/2023Kathy V TurnerSVPSell2,000$504.59$1,009,180.007,380View SEC Filing Icon  
2/9/2023Kathy V TurnerSVPSell1,000$505.04$505,040.006,941View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for IDEXX Laboratories (NASDAQ:IDXX)

87.84% of IDEXX 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 IDXX by year and by quarter.

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

IDEXX Laboratories Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/3/2026EWA LLC329$0.22M0.1%N/A0.000%Search for SEC Filing on Google Icon
2/3/2026NewEdge Wealth LLC6,597$4.46M0.1%+122.3%0.008%Search for SEC Filing on Google Icon
2/3/2026F m Investments LLC26,546$17.96M0.7%-2.5%0.033%Search for SEC Filing on Google Icon
2/3/2026Crossmark Global Holdings Inc.9,496$6.42M0.1%+166.1%0.012%Search for SEC Filing on Google Icon
2/3/2026Ethic Inc.11,899$8.05M0.1%+3.8%0.015%Search for SEC Filing on Google Icon
2/3/2026Ballentine Partners LLC1,263$0.85M0.0%+6.4%0.002%Search for SEC Filing on Google Icon
2/3/2026GRIMES & Co WEALTH MANAGEMENT LLC4,317$2.92M0.1%-1.9%0.005%Search for SEC Filing on Google Icon
2/3/2026International Assets Investment Management LLC664$0.45M0.0%-18.1%0.001%Search for SEC Filing on Google Icon
2/3/2026Diversify Wealth Management LLC1,118$0.80M0.0%+4.1%0.001%Search for SEC Filing on Google Icon
2/3/2026Generali Asset Management SPA SGR6,792$4.60M0.1%-8.2%0.009%Search for SEC Filing on Google Icon
2/3/2026ASR Vermogensbeheer N.V.6,592$4.46M0.1%+80.8%0.008%Search for SEC Filing on Google Icon
2/3/2026MGO One Seven LLC6,058$4.10M0.1%-0.6%0.008%Search for SEC Filing on Google Icon
2/3/2026Crestwood Advisors Group LLC1,068$0.72M0.0%+10.1%0.001%Search for SEC Filing on Google Icon
2/3/2026Premier Fund Managers Ltd31,037$21.17M1.2%-62.7%0.039%Search for SEC Filing on Google Icon
2/3/2026Cabot Wealth Management Inc.5,771$3.90M0.4%-1.2%0.007%Search for SEC Filing on Google Icon
2/3/2026Sequoia Financial Advisors LLC3,985$2.70M0.0%+23.1%0.005%Search for SEC Filing on Google Icon
2/3/2026Gateway Investment Advisers LLC12,295$8.32M0.1%+17.7%0.015%Search for SEC Filing on Google Icon
2/3/2026Ponta Wealth Partners LLC333$0.23M0.2%N/A0.000%Search for SEC Filing on Google Icon
2/3/2026LaFleur & Godfrey LLC8,481$5.74M0.7%-4.4%0.011%Search for SEC Filing on Google Icon
2/3/2026Navellier & Associates Inc.7,795$5.27M0.6%N/A0.010%Search for SEC Filing on Google Icon
2/3/2026S Bank Fund Management Ltd767$0.52M0.1%-35.1%0.001%Search for SEC Filing on Google Icon
2/3/2026RFG Advisory LLC2,631$1.78M0.0%-2.1%0.003%Search for SEC Filing on Google Icon
2/3/2026Stevens Capital Management LP1,271$0.86M0.3%-21.1%0.002%Search for SEC Filing on Google Icon
2/3/2026Swedbank AB37,962$25.68M0.0%+0.3%0.048%Search for SEC Filing on Google Icon
2/3/2026Mitsubishi UFJ Asset Management Co. Ltd.184,168$123.39M0.1%+0.2%0.231%Search for SEC Filing on Google Icon
2/3/2026BOKF NA2,370$1.60M0.0%-12.4%0.003%Search for SEC Filing on Google Icon
2/3/2026Sumitomo Mitsui DS Asset Management Company Ltd11,778$7.97M0.1%-57.1%0.015%Search for SEC Filing on Google Icon
2/3/2026Harel Insurance Investments & Financial Services Ltd.304$0.20M0.0%-44.3%0.000%Search for SEC Filing on Google Icon
2/2/2026Alliance Wealth Advisors LLC UT1,676$1.13M0.2%-33.8%0.002%Search for SEC Filing on Google Icon
2/2/2026Principal Financial Group Inc.968,946$655.56M0.3%-26.4%1.213%Search for SEC Filing on Google Icon
2/2/2026QRG Capital Management Inc.2,496$1.69M0.0%+29.3%0.003%Search for SEC Filing on Google Icon
2/2/2026Pinnacle Wealth Management Advisory Group LLC317$0.21M0.0%N/A0.000%Search for SEC Filing on Google Icon
2/2/2026Headinvest LLC6,841$4.63M0.9%-2.4%0.009%Search for SEC Filing on Google Icon
2/2/2026Truist Financial Corp20,598$13.94M0.0%-8.8%0.026%Search for SEC Filing on Google Icon
2/2/2026B.O.S.S. Retirement Advisors LLC1,200$0.81M0.3%-61.5%0.002%Search for SEC Filing on Google Icon
2/2/2026Mcdonald Partners LLC310$0.21M0.1%N/A0.000%Search for SEC Filing on Google Icon
2/2/2026CENTRAL TRUST Co105$71K0.0%-27.6%0.000%Search for SEC Filing on Google Icon
2/2/2026PKO Investment Management Joint Stock Co3,100$2.10M0.2%+19.2%0.004%Search for SEC Filing on Google Icon
2/2/2026Pittenger & Anderson Inc.10,491$7.10M0.3%+0.4%0.013%Search for SEC Filing on Google Icon
2/2/2026Strs Ohio12,208$8.26M0.0%-0.2%0.015%Search for SEC Filing on Google Icon
2/2/2026Ashton Thomas Securities LLC776$0.53M0.1%N/A0.001%Search for SEC Filing on Google Icon
2/2/2026Cornerstone Planning Group LLC106$73K0.0%+34.2%0.000%Search for SEC Filing on Google Icon
2/2/2026Composition Wealth LLC774$0.52M0.0%+7.8%0.001%Search for SEC Filing on Google Icon
2/2/2026PFA Pension Forsikringsaktieselskab49,811$33.99M0.1%N/A0.062%Search for SEC Filing on Google Icon
2/2/2026Horizon Investments LLC2,424$1.64M0.0%-3.8%0.003%Search for SEC Filing on Google Icon
2/2/2026Academy Capital Management35,240$23.84M3.2%-0.6%0.044%Search for SEC Filing on Google Icon
2/2/2026Fifth Third Bancorp7,516$5.09M0.0%+1.9%0.009%Search for SEC Filing on Google Icon
2/2/2026Danske Bank A S44,061$29.81M0.1%+10.3%0.055%Search for SEC Filing on Google Icon
2/2/2026Conestoga Capital Advisors LLC1,205$0.82M0.0%-28.7%0.002%Search for SEC Filing on Google Icon
2/2/2026Citizens Business Bank312$0.21M0.0%N/A0.000%Search for SEC Filing on Google Icon
2/2/2026Oppenheimer & Co. Inc.3,252$2.20M0.0%+294.7%0.004%Search for SEC Filing on Google Icon
2/2/2026Oppenheimer Asset Management Inc.34,100$23.07M0.3%+13.0%0.043%Search for SEC Filing on Google Icon
1/30/2026Sigma Planning Corp1,269$0.86M0.0%+8.7%0.002%Search for SEC Filing on Google Icon
1/30/2026Citizens Financial Group Inc. RI2,241$1.52M0.0%-1.5%0.003%Search for SEC Filing on Google Icon
1/30/2026Mogy Joel R Investment Counsel Inc.85,545$57.87M3.1%+0.3%0.107%Search for SEC Filing on Google Icon
1/30/2026New York State Teachers Retirement System66,569$45.04M0.1%-1.2%0.083%Search for SEC Filing on Google Icon
1/30/2026WoodTrust Financial Corp12,148$8.22M1.0%-0.4%0.015%Search for SEC Filing on Google Icon
1/30/2026Trifecta Capital Advisors LLC300$0.20M0.0%-25.9%0.000%Search for SEC Filing on Google Icon
1/30/2026State of New Jersey Common Pension Fund D27,643$18.70M0.1%-2.3%0.035%Search for SEC Filing on Google Icon
1/30/2026US Bancorp DE15,502$10.49M0.0%+1.6%0.019%Search for SEC Filing on Google Icon
1/30/2026Wendell David Associates Inc.12,313$8.33M0.8%-6.2%0.015%Search for SEC Filing on Google Icon
1/30/2026GC Wealth Management RIA LLC935$0.63M0.0%-59.2%0.001%Search for SEC Filing on Google Icon
1/30/2026Cardinal Capital Management14,116$9.55M1.3%-0.4%0.018%Search for SEC Filing on Google Icon
1/30/2026Simplicity Wealth LLC434$0.29M0.0%+16.0%0.001%Search for SEC Filing on Google Icon
1/30/2026Joel Isaacson & Co. LLC823$0.56M0.0%-5.7%0.001%Search for SEC Filing on Google Icon
1/30/2026Chapin Davis Inc.8,191$5.54M1.3%+3.2%0.010%Search for SEC Filing on Google Icon
1/30/2026Keybank National Association OH21,217$14.35M0.1%+2.0%0.027%Search for SEC Filing on Google Icon
1/30/2026Aries Wealth Management3,177$2.15M0.5%-2.2%0.004%Search for SEC Filing on Google Icon
1/30/2026CFC Planning Co LLC1,355$0.92M0.7%+41.4%0.002%Search for SEC Filing on Google Icon
1/30/2026Flossbach Von Storch SE54,131$36.62M0.1%-51.0%0.068%Search for SEC Filing on Google Icon
1/30/2026Wealthfront Advisers LLC16,915$11.44M0.0%+78.5%0.021%Search for SEC Filing on Google Icon
1/30/2026Certuity LLC369$0.25M0.0%+7.6%0.000%Search for SEC Filing on Google Icon
1/30/2026Torren Management LLC125$85K0.0%N/A0.000%Search for SEC Filing on Google Icon
1/30/2026Mitsubishi UFJ Trust & Banking Corp72,405$48.98M0.1%+21.5%0.091%Search for SEC Filing on Google Icon
1/30/2026M&T Bank Corp5,982$4.05M0.0%+70.1%0.007%Search for SEC Filing on Google Icon
1/29/2026Comerica Bank17,493$11.84M0.0%-35.5%0.022%Search for SEC Filing on Google Icon
1/29/2026Ashton Thomas Private Wealth LLC474$0.32M0.0%+20.9%0.001%Search for SEC Filing on Google Icon
1/29/2026Eads & Heald Wealth Management2,823$1.91M0.9%-0.9%0.004%Search for SEC Filing on Google Icon
1/29/2026RMR Wealth Builders506$0.34M0.0%N/A0.001%Search for SEC Filing on Google Icon
1/29/2026D.A. Davidson & CO.2,108$1.43M0.0%+8.0%0.003%Search for SEC Filing on Google Icon
1/29/2026Kestra Private Wealth Services LLC633$0.43M0.0%-63.2%0.001%Search for SEC Filing on Google Icon
1/29/2026Pictet Asset Management Holding SA172,239$116.57M0.1%-38.4%0.216%Search for SEC Filing on Google Icon
1/29/2026Physician Wealth Advisors Inc.67$45K0.0%-19.3%0.000%Search for SEC Filing on Google Icon
1/29/2026State of Michigan Retirement System31,355$21.21M0.1%-1.9%0.039%Search for SEC Filing on Google Icon
1/29/2026Concord Asset Management LLC VA311$0.21M0.0%N/A0.000%Search for SEC Filing on Google Icon
1/29/2026Inscription Capital LLC1,134$0.77M0.1%+22.3%0.001%Search for SEC Filing on Google Icon
1/29/2026Verdence Capital Advisors LLC1,351$0.91M0.1%-19.2%0.002%Search for SEC Filing on Google Icon
1/29/2026ST Germain D J Co. Inc.179$0.12M0.0%-58.6%0.000%Search for SEC Filing on Google Icon
1/29/2026UBS Group AG284,952$192.78M0.0%-18.8%0.357%Search for SEC Filing on Google Icon
1/29/2026Sanctuary Advisors LLC12,736$8.62M0.0%+129.5%0.016%Search for SEC Filing on Google Icon
1/29/2026Capital Investment Services of America Inc.38,371$25.96M2.4%-3.5%0.048%Search for SEC Filing on Google Icon
1/29/2026Live Oak Investment Partners2,104$1.42M0.9%+31.8%0.003%Search for SEC Filing on Google Icon
1/29/2026Advisors Capital Management LLC7,637$5.17M0.1%-0.9%0.010%Search for SEC Filing on Google Icon
1/29/2026AEGON ASSET MANAGEMENT UK Plc26,068$17.64M0.2%-4.6%0.033%Search for SEC Filing on Google Icon
1/29/2026Vanguard Group Inc.9,945,328$6.73B0.1%-0.2%12.455%Search for SEC Filing on Google Icon
1/29/2026Klingman & Associates LLC310$0.21M0.0%N/A0.000%Search for SEC Filing on Google Icon
1/29/2026Concurrent Investment Advisors LLC994$0.67M0.0%-39.2%0.001%Search for SEC Filing on Google Icon
1/29/2026Generali Investments Management Co LLC1,081$0.73M0.1%+27.6%0.001%Search for SEC Filing on Google Icon
1/29/2026Calamos Wealth Management LLC416$0.28M0.0%N/A0.001%Search for SEC Filing on Google Icon
1/29/2026Montrusco Bolton Investments Inc.176,932$117.09M1.5%-23.8%0.222%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
IDEXX Laboratories logo
IDEXX Laboratories, Inc. develops, manufactures, and distributes products primarily for the companion animal veterinary, livestock and poultry, dairy, and water testing markets in Africa, the Asia Pacific, Canada, Europe, Latin America, and internationally. The company operates through three segments: Companion Animal Group; Water Quality Products; and Livestock, Poultry and Dairy. It also provides point-of-care veterinary diagnostic products, including instruments, consumables, and rapid assay test kits; veterinary reference laboratory diagnostic and consulting services; practice management and diagnostic imaging systems and services for veterinarians; and health monitoring, biological materials testing, and laboratory diagnostic instruments, and services for biomedical research community. In addition, the company offers diagnostic and health-monitoring products for livestock, poultry, and dairy; products that test water for various microbiological contaminants; point-of-care electrolytes and blood gas analyzers; in-clinic chemistry, blood and urine chemistry, hematology, immunoassay, urinalysis, and coagulation analyzers; and SNAP rapid assays test kits. Further, it provides Colilert, Colilert-18, and Colisure tests, which detect the presence of total coliforms and E. coli in water; Enterolert, Pseudalert, Filta-Max and Filta-Max xpress, Legiolert, and Quanti-Tray products; and veterinary software and services for independent veterinary clinics and corporate groups. Additionally, the company offers human medical point-of-care products and laboratory diagnostics services. The company markets its products through marketing, customer service, sales, and technical service groups, as well as through independent distributors and other resellers. IDEXX Laboratories, Inc. was incorporated in 1983 and is headquartered in Westbrook, Maine.
Read More on IDEXX Laboratories

Today's Range

Now: $632.56
Low: $629.27
High: $650.72

50 Day Range

MA: $700.41
Low: $632.56
High: $755.96

52 Week Range

Now: $632.56
Low: $356.14
High: $769.98

Volume

634,023 shs

Average Volume

478,001 shs

Market Capitalization

$50.51 billion

P/E Ratio

48.40

Dividend Yield

N/A

Beta

1.67

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

IDEXX Laboratories' top insider investors include:
  1. Jonathan Jay Mazelsky (CEO)
  2. Brian P Mckeon (CFO)
  3. Nimrata Hunt (EVP)
  4. Michael G Erickson (EVP)
  5. George Fennell (EVP)
  6. Michael Lane (EVP)
  7. George Fennell (SVP)
  8. Sharon E Underberg (EVP)
  9. M Anne Szostak (Director)
  10. Sophie V Vandebroek (Director)
  11. Bruce L Claflin (Director)
Learn More about top insider investors at IDEXX Laboratories.

Who are the major institutional investors of IDEXX Laboratories?

IDEXX Laboratories' top institutional shareholders include:
  1. Vanguard Group Inc. — 12.46%
  2. Principal Financial Group Inc. — 1.21%
  3. KBC Group NV — 0.39%
  4. UBS Group AG — 0.36%
  5. Sumitomo Mitsui Trust Group Inc. — 0.26%
  6. Robeco Institutional Asset Management B.V. — 0.23%
Learn More about top institutional investors of IDEXX Laboratories stock.

Which institutional investors are selling IDEXX Laboratories stock?

During the previous quarter, IDXX stock was sold by these institutional investors:
  1. Principal Financial Group Inc.
  2. Pictet Asset Management Holding SA
  3. UBS Group AG
  4. Flossbach Von Storch SE
  5. Montrusco Bolton Investments Inc.
  6. Premier Fund Managers Ltd
  7. Seilern Investment Management Ltd
  8. Robeco Institutional Asset Management B.V.
During the previous year, company insiders that have sold IDEXX Laboratories company stock include:
  1. Jonathan Jay Mazelsky (CEO)
  2. Brian P Mckeon (CFO)
  3. Nimrata Hunt (EVP)
  4. Michael G Erickson (EVP)
  5. George Fennell (EVP)
  6. Michael Lane (EVP)
  7. George Fennell (SVP)
Learn More investors selling IDEXX Laboratories stock.

Which institutional investors are buying IDEXX Laboratories stock?

In the last quarter, IDXX stock was purchased by institutional investors including:
  1. Congress Asset Management Co.
  2. KBC Group NV
  3. M&T Bank Corp
  4. PFA Pension Forsikringsaktieselskab
  5. Teacher Retirement System of Texas
  6. Assenagon Asset Management S.A.
  7. Mitsubishi UFJ Trust & Banking Corp
  8. Zurcher Kantonalbank Zurich Cantonalbank