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IDEXX Laboratories Inc

IDXX
Exchange
Nasdaq
Industry
In Vitro & In Vivo Diagnostic Substances
SEC CIK
0000874716

In the last 90 days, IDEXX Laboratories Inc insiders filed 0 open-market purchases and 1 sale; 1,306 institutions reported holding it in 13F filings for Q2 2026, worth $39.1B in total; 3 superinvestors hold it, including Fundsmith and Weitz Investment Management.

13F holders, Q1 2026

Institutional positions in IDEXX Laboratories Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,318
−46 vs. Q4 2025
Shares held
73.3M
+1.79M (+2.5%) vs. Q4 2025
Total value
$41.2B
−$1.72B (−4.0%) vs. Q4 2025
New holders
125
435 more added
Sold out
171
517 more reduced

21 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting IDXX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 1,318 institutions
Q1 2021: 1,015 institutionsQ2 2021: 1,037 institutionsQ3 2021: 1,063 institutionsQ4 2021: 1,110 institutionsQ1 2022: 1,036 institutionsQ2 2022: 959 institutionsQ3 2022: 925 institutionsQ4 2022: 1,001 institutionsQ1 2023: 1,058 institutionsQ2 2023: 1,069 institutionsQ3 2023: 1,061 institutionsQ4 2023: 1,155 institutionsQ1 2024: 1,147 institutionsQ2 2024: 1,110 institutionsQ3 2024: 1,117 institutionsQ4 2024: 1,124 institutionsQ1 2025: 1,143 institutionsQ2 2025: 1,234 institutionsQ3 2025: 1,302 institutionsQ4 2025: 1,385 institutionsQ1 2026: 1,318 institutionsQ2 2026: 1,306 institutions
Value heldQ1 2026: $41.2B
Q1 2021: $35.6BQ2 2021: $46.1BQ3 2021: $44.6BQ4 2021: $47.1BQ1 2022: $39.7BQ2 2022: $25.9BQ3 2022: $24.0BQ4 2022: $30.0BQ1 2023: $36.4BQ2 2023: $36.7BQ3 2023: $32.4BQ4 2023: $40.5BQ1 2024: $39.1BQ2 2024: $36.4BQ3 2024: $36.7BQ4 2024: $29.8BQ1 2025: $31.1BQ2 2025: $40.0BQ3 2025: $46.1BQ4 2025: $50.3BQ1 2026: $41.2BQ2 2026: $39.1B
Institutions holding IDXX and their total value by quarter
QuarterHoldersValue
Q2 20261,306$39.1B
Q1 20261,318$41.2B
Q4 20251,385$50.3B
Q3 20251,302$46.1B
Q2 20251,234$40.0B
Q1 20251,143$31.1B
Q4 20241,124$29.8B
Q3 20241,117$36.7B
Q2 20241,110$36.4B
Q1 20241,147$39.1B
Q4 20231,155$40.5B
Q3 20231,061$32.4B
Q2 20231,069$36.7B
Q1 20231,058$36.4B
Q4 20221,001$30.0B
Q3 2022925$24.0B
Q2 2022959$25.9B
Q1 20221,036$39.7B
Q4 20211,110$47.1B
Q3 20211,063$44.6B
Q2 20211,037$46.1B
Q1 20211,015$35.6B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding IDEXX Laboratories Inc; share changes are against Q4 2025.

Institutions holding IDXX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
IMA Wealth, Inc.1$5610.00%00.0%Unchanged
United Community Bank1$5620.00%−18−94.7%Reduced
North Star Investment Management Corp.1$5620.00%−2−66.7%Reduced
Crewe Advisors LLC1$5620.00%−2−66.7%Reduced
Trust Co1$5620.00%00.0%Unchanged
Elevated Capital Advisors, LLC1$5620.00%00.0%Unchanged
TFC Financial Management1$5620.00%00.0%Unchanged
Atlantic Private Wealth, LLC1$5620.00%00.0%Unchanged
DecisionPoint Financial, LLC1$5620.00%00.0%Unchanged
Cherry Tree Wealth Management, LLC1$5620.00%00.0%Unchanged
Breakwater Investment Management1$5620.00%00.0%Unchanged
Seneschal Advisors, LLC1$5620.00%00.0%Unchanged
Atwood & Palmer Inc1$5620.00%+1New
Cassaday & Co Wealth Management LLC1$5620.00%+1New
Vanguard National Trust Co1$5620.00%+1New
Tidemark, LLC1$5620.00%+1New
Portus Wealth Advisors, LLC1$5620.00%+1New
Investors Portfolio Services LLC2$9580.00%+2New
Phillip James Consulting Co.1$1.00K0.00%+1New
Curio Wealth, LLC2$1.12K0.00%00.0%Unchanged
Quaker Wealth Management, LLC2$1.12K0.00%00.0%Unchanged
WestEnd Advisors, LLC2$1.12K0.00%00.0%Unchanged
Nvest Wealth Strategies, Inc.2$1.12K0.00%+2New
HFM Investment Advisors, LLC3$1.69K0.00%00.0%Unchanged
American Capital Advisory, LLC3$1.69K0.00%+2+200.0%Added
Twin Tree Management, LP3$1.69K0.00%+3New
Winthrop Capital Management, LLC3$2.00K0.00%00.0%Unchanged
Aspect Partners, LLC4$2.25K0.00%00.0%Unchanged
Pier Capital, LLC4$2.25K0.00%00.0%Unchanged
DAGCO, Inc.4$2.25K0.00%00.0%Unchanged
Byrne Asset Management LLC4$2.25K0.00%00.0%Unchanged
Nemes Rush Group LLC4$2.25K0.00%00.0%Unchanged
Ameriflex Group, Inc.4$2.25K0.00%00.0%Unchanged
1015 Capital Partners, LLC4$2.25K0.00%+1+33.3%Added
McMillan Office, Inc.4$2.25K0.00%+4New
Innovative Asset Advisors Group, LLC4$2.25K0.00%+4New
McIlrath & Eck, LLC5$2.81K0.00%00.0%Unchanged
Archer Investment Corp5$2.81K0.00%00.0%Unchanged
Hara Capital LLC5$2.81K0.00%00.0%Unchanged
Caitlin John, LLC5$2.81K0.00%00.0%Unchanged
Marquette Asset Management, LLC5$2.81K0.00%−17−77.3%Reduced
Clayton Financial Group LLC5$2.81K0.00%00.0%Unchanged
Legacy Wealth Managment, LLC5$2.81K0.00%00.0%Unchanged
Synergy Investment Management, LLC5$2.81K0.00%+5New
Hamrick Investment Counsel, llc5$2.81K0.00%+5New
Penserra Capital Management LLC6$3.00K0.00%00.0%Unchanged
Vermillion Wealth Management, Inc.6$3.37K0.00%+6New
Burk Holdings LLC6$3.37K0.00%+6New
Beaird Harris Wealth Management, LLC6$3.52K0.00%00.0%Unchanged
Dunhill Financial, LLC6$3.64K0.00%−2−25.0%Reduced
Accent Capital Management, LLC7$3.93K0.00%00.0%Unchanged
Altshuler Shaham Ltd7$3.93K0.00%+1+16.7%Added
Gill Capital Partners, LLC7$3.93K0.00%+7New
Moisand Fitzgerald Tamayo, LLC7$3.93K0.00%00.0%Unchanged
Old Point Trust & Financial Services N A8$4.50K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.8$4.50K0.00%00.0%Unchanged
Abound Wealth Management9$5.01K0.00%00.0%Unchanged
Golden State Equity Partners9$5.06K0.00%+9New
Leonteq Securities AG9$5.06K0.00%−3−25.0%Reduced
Creative Financial Designs Inc9$5.06K0.00%00.0%Unchanged
United Financial Planning Group LLC9$5.06K0.00%+9New
Tradewinds Capital Management, LLC9$5.06K0.00%00.0%Unchanged
First Pacific Financial9$5.06K0.00%00.0%Unchanged
Bay Harbor Wealth Management, LLC10$5.62K0.00%+1+11.1%Added
Hartford Financial Management Inc.10$5.62K0.00%00.0%Unchanged
Frazier Financial Advisors, LLC10$5.62K0.00%00.0%Unchanged
Chilton Capital Management LLC10$5.62K0.00%+9+900.0%Added
Main Street Group, LTD10$5.62K0.00%+10New
Intentional Wealth Strategies, LLC11$6.18K0.01%+11New
SJS Investment Consulting Inc.11$6.18K0.00%−6−35.3%Reduced
Ares Financial Consulting, LLC11$6.21K0.00%00.0%Unchanged
American National Bank12$6.74K0.00%+12New
South State Corp.12$6.74K0.00%−140−92.1%Reduced
Kilter Group LLC12$6.74K0.00%00.0%Unchanged
Signature Resources Capital Management, LLC12$6.74K0.00%00.0%Unchanged
Evelyn Partners Investment Management LLP12$6.74K0.00%00.0%Unchanged
High Note Wealth, LLC12$6.74K0.00%+3+33.3%Added
Richardson Capital Management LLC12$6.74K0.00%+12New
Bayban12$6.74K0.01%+12New
Westend Capital Management, LLC13$7.30K0.00%00.0%Unchanged
Clean Yield Group13$7.30K0.00%00.0%Unchanged
Raffa Wealth Management, LLC13$7.30K0.00%00.0%Unchanged
Newbridge Financial Services Group, Inc.13$7.30K0.00%00.0%Unchanged
Bogart Wealth, LLC13$7.30K0.00%+3+30.0%Added
Truvestments Capital LLC14$7.87K0.00%−4−22.2%Reduced
Evelyn Partners Asset Management Ltd14$7.87K0.00%00.0%Unchanged
Hughes Financial Services, LLC14$7.87K0.00%+2+16.7%Added
Cedar Mountain Advisors, LLC14$7.87K0.00%+14New
Prestige Wealth Management Group LLC14$7.87K0.00%00.0%Unchanged
RMG Wealth Management LLC15$7.98K0.00%+10+200.0%Added
Thurston, Springer, Miller, Herd & Titak, Inc.15$8.43K0.00%−10−40.0%Reduced
Key Financial Inc15$8.43K0.00%00.0%Unchanged
MTM Investment Management, LLC15$8.43K0.00%00.0%Unchanged
Cornerstone Financial Management LLC15$8.43K0.01%+3+25.0%Added
Country Trust Bank15$8.43K0.00%+12+400.0%Added
Simplex Trading, LLC15$8.43K0.00%+15New
Bernard Wealth Management Corp.15$8.43K0.00%00.0%Unchanged
Solstein Capital, LLC16$8.99K0.00%00.0%Unchanged
Medallion Wealth Advisors, LLC16$8.99K0.00%00.0%Unchanged
JNBA Financial Advisors16$8.99K0.00%+16New