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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, Q2 2025

Institutional positions in IDEXX Laboratories Inc as of Jun 30, 2025. 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
1,234
+104 vs. Q1 2025
Shares held
74.5M
+503.9K (+0.7%) vs. Q1 2025
Total value
$40.0B
+$8.90B (+28.6%) vs. Q1 2025
New holders
198
425 more added
Sold out
94
419 more reduced

13 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2025: 1,234 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 heldQ2 2025: $40.0B
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, Q2 2025

Shares, value and share of portfolio for each institution holding IDEXX Laboratories Inc; share changes are against Q1 2025.

Institutions holding IDXX in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Korea Investment CORP63,313$34.0M0.08%+8,714+16.0%Added
Vantage Investment Partners, LLC64,765$34.7M2.53%+11,548+21.7%Added
Assetmark, Inc64,785$34.7M0.08%+11,830+22.3%Added
Raiffeisen Bank International AG67,448$35.8M0.53%−20,708−23.5%Reduced
New York State Teachers Retirement System67,617$36.3M0.08%+97+0.1%Added
Mitsubishi UFJ Trust & Banking Corp74,766$40.1M0.09%−4,976−6.2%Reduced
Great West Life Assurance Co74,735$40.1M0.06%−911−1.2%Reduced
Local Pensions Partnership Investment Ltd75,826$40.7M0.75%00.0%Unchanged
Bellevue Group AG76,548$41.1M0.90%−349−0.5%Reduced
Millennium Management LLC78,778$42.3M0.04%+39,270+99.4%Added
Candriam Luxembourg S.C.A.79,028$42.4M0.24%−3,163−3.8%Reduced
National Bank of Canada80,154$43.0M0.05%+5,215+7.0%Added
State Board of Administration of Florida Retirement System80,822$43.3M0.08%+376+0.5%Added
Martin Currie Ltd82,254$44.1M1.69%+3,039+3.8%Added
Canada Pension Plan Investment Board84,718$45.4M0.04%+3,154+3.9%Added
Mogy Joel R Investment Counsel Inc85,181$45.7M2.64%−543−0.6%Reduced
KBC Group NV85,667$45.9M0.12%+8,130+10.5%Added
Chicago Capital, LLC86,322$46.3M1.14%−977−1.1%Reduced
Pinebridge Investments, L.P.87,106$46.7M0.38%−21,258−19.6%Reduced
Pictet & Cie (Europe) SA89,000$47.7M1.02%00.0%Unchanged
Thrivent Financial for Lutherans89,806$48.2M0.11%−11,807−11.6%Reduced
Lazard Freres Gestion S.A.S.90,904$48.8M1.02%+9,671+11.9%Added
Royal London Asset Management Ltd90,979$48.8M0.11%−930−1.0%Reduced
Standard Life Aberdeen plc92,637$49.7M0.08%+2,506+2.8%Added
Manitou Investment Management Ltd.95,487$51.2M9.74%+39,233+69.7%Added
BLI - Banque de Luxembourg Investments98,900$52.5M1.50%−20,500−17.2%Reduced
Riverbridge Partners LLC99,330$53.3M0.86%−3,162−3.1%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.99,827$53.5M0.13%−228−0.2%Reduced
Davis R M Inc101,363$54.4M1.01%−1,548−1.5%Reduced
Los Angeles Capital Management LLC102,203$54.8M0.21%+82,053+407.2%Added
Stephens Investment Management Group LLC103,353$55.4M0.73%−8,059−7.2%Reduced
Quantum Capital Management, LLC104,427$56.0M6.05%−13,140−11.2%Reduced
Bradley Foster & Sargent Inc104,695$56.2M0.88%+846+0.8%Added
Brown Advisory Inc108,761$58.3M0.08%−10,408−8.7%Reduced
Alliancebernstein L.P.108,798$58.4M0.02%−73,094−40.2%Reduced
Frontier Capital Management Co LLC109,065$58.5M0.54%−6,851−5.9%Reduced
Kayne Anderson Rudnick Investment Management LLC111,016$59.5M0.14%−8,171−6.9%Reduced
National Pension Service114,378$61.3M0.05%−12,022−9.5%Reduced
Two Creeks Capital Management, LP114,459$61.4M4.08%−45,795−28.6%Reduced
CI Private Wealth, LLC117,474$63.0M0.09%−3,030−2.5%Reduced
SEI Investments Co120,587$64.7M0.07%+56,692+88.7%Added
Bank of Montreal121,101$65.0M0.03%+21,132+21.1%Added
EULAV Asset Management126,217$67.7M1.59%+20.0%Added
Allianz Asset Management GmbH126,290$67.7M0.09%−11,874−8.6%Reduced
California State Teachers Retirement System128,836$69.1M0.08%+2,742+2.2%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP131,683$70.6M0.62%−2,092−1.6%Reduced
Fiera Capital Corp134,098$71.9M0.24%−3,490−2.5%Reduced
ProShare Advisors LLC135,564$72.7M0.15%+530.0%Added
Citigroup Inc136,782$73.4M0.05%+4,546+3.4%Added
Rathbone Brothers plc137,219$73.6M0.32%−6,549−4.6%Reduced
Premier Fund Managers Ltd146,128$77.6M2.83%+115,351+374.8%Added
California Public Employees Retirement System148,408$79.6M0.05%+6,706+4.7%Added
Voya Investment Management LLC148,692$79.7M0.08%+83,110+126.7%Added
Mackenzie Financial Corp149,522$80.2M0.10%+1,199+0.8%Added
LGT Capital Partners Ltd.149,571$80.2M3.55%−5,567−3.6%Reduced
Railway Pension Investments Ltd154,330$82.8M1.17%−10,800−6.5%Reduced
Welch & Forbes LLC169,017$90.7M1.13%−829−0.5%Reduced
Wells Fargo & Company171,466$92.0M0.02%+60,988+55.2%Added
Squarepoint Ops LLC172,601$92.6M0.20%+131,001+314.9%Added
Universal- Beteiligungs- und Servicegesellschaft mbH173,327$93.0M0.16%+23,029+15.3%Added
BNP Paribas Arbitrage, SA174,866$93.8M0.07%−223,287−56.1%Reduced
Liontrust Investment Partners LLP175,580$94.2M1.35%−12,049−6.4%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.177,169$95.0M0.08%+6,337+3.7%Added
Rhumbline Advisers179,518$96.3M0.08%−3,677−2.0%Reduced
Caisse de Depot Et Placement du Quebec181,095$97.1M0.21%+13,121+7.8%Added
Russell Investments Group, Ltd.182,365$97.8M0.12%+527+0.3%Added
Victory Capital Management Inc184,581$99.0M0.06%+4,416+2.5%Added
Wellington Management Group LLP188,173$100.9M0.02%−31,400−14.3%Reduced
American Capital Management Inc189,000$101.4M4.20%−32,606−14.7%Reduced
Champlain Investment Partners, LLC192,226$103.1M0.72%−32,379−14.4%Reduced
TimesSquare Capital Management, LLC201,276$108.0M1.56%+3,530+1.8%Added
Sumitomo Mitsui Trust Holdings, Inc.201,918$108.3M0.07%+2,528+1.3%Added
Arrowstreet Capital, Limited Partnership206,137$110.6M0.08%+15,227+8.0%Added
Robeco Institutional Asset Management B.V.207,228$111.1M0.18%+58,991+39.8%Added
Raymond James Financial Inc210,773$113.0M0.04%+17,517+9.1%Added
Seilern Investment Management Ltd212,176$113.8M7.51%−53,773−20.2%Reduced
Ameriprise Financial Inc215,845$115.8M0.03%+81,904+61.1%Added
AQR Capital Management LLC223,319$118.7M0.10%+47,534+27.0%Added
HSBC Holdings PLC224,150$120.2M0.08%−123,463−35.5%Reduced
Envestnet Asset Management Inc230,911$123.8M0.04%+69,082+42.7%Added
Bank Julius Baer & Co. Ltd, Zurich233,263$125.1M0.37%−3,648−1.5%Reduced
Flossbach Von Storch AG241,125$129.3M0.53%−310,639−56.3%Reduced
Comgest Global Investors S.A.S.244,109$130.9M2.23%−1,192−0.5%Reduced
Swiss National Bank245,300$131.6M0.08%+14,300+6.2%Added
Epoch Investment Partners, Inc.250,591$134.4M0.70%+49,624+24.7%Added
First Trust Advisors LP254,553$136.5M0.11%+35,526+16.2%Added
FMR LLC269,882$144.7M0.01%+15,918+6.3%Added
Williams Jones Wealth Management, LLC.277,488$148.8M1.78%−17,850−6.0%Reduced
Clearbridge Investments, LLC283,765$152.2M0.12%−53,292−15.8%Reduced
Barclays PLC305,180$163.7M0.06%+25,509+9.1%Added
Schroder Investment Management Group315,785$169.4M0.14%+235,863+295.1%Added
Deutsche Bank AG329,017$176.5M0.07%−31,260−8.7%Reduced
TD Asset Management Inc329,511$176.7M0.15%+35,798+12.2%Added
Pictet Asset Management Holding SA330,361$177.1M0.18%−126,005−27.6%Reduced
Neuberger Berman Group LLC350,987$188.2M0.14%−64,154−15.5%Reduced
UBS Group AG373,011$200.1M0.04%−3,532−0.9%Reduced
CIBC Private Wealth Group, LLC374,745$201.0M0.36%+271,193+261.9%Added
Bessemer Group Inc381,828$204.8M0.33%+41,766+12.3%Added
Royal Bank of Canada408,252$219.0M0.04%+68,564+20.2%Added
Vontobel Holding Ltd.413,534$221.8M0.73%−43,087−9.4%Reduced