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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 2025

Institutional positions in IDEXX Laboratories Inc as of Mar 31, 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
1,143
+34 vs. Q4 2024
Shares held
74.1M
+2.63M (+3.7%) vs. Q4 2024
Total value
$31.1B
+$1.53B (+5.2%) vs. Q4 2024
New holders
123
467 more added
Sold out
89
353 more reduced

15 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 2025: 1,143 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 2025: $31.1B
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 2025

Shares, value and share of portfolio for each institution holding IDEXX Laboratories Inc; share changes are against Q4 2024.

Institutions holding IDXX in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Prudential PLC60,886$25.6M0.13%+8,214+15.6%Added
Manufacturers Life Insurance Company, The62,110$26.1M0.02%−18,930−23.4%Reduced
Verition Fund Management LLC62,761$26.4M0.15%+39,936+175.0%Added
Villere St Denis J & Co LLC62,805$26.4M2.54%+363+0.6%Added
SEI Investments Co63,895$26.8M0.03%+29,439+85.4%Added
Teacher Retirement System of Texas64,200$27.0M0.11%+37,163+137.5%Added
Ninety One UK Ltd64,609$27.1M0.08%−6,423−9.0%Reduced
Beacon Investment Advisory Services, Inc.65,278$27.4M1.28%−14,326−18.0%Reduced
Voya Investment Management LLC65,582$27.5M0.03%+2,926+4.7%Added
Mirae Asset Global ETFs Holdings Ltd.67,215$28.2M0.06%+7,328+12.2%Added
New York State Teachers Retirement System67,520$28.4M0.07%−4,642−6.4%Reduced
National Bank of Canada74,939$31.5M0.04%+1,911+2.6%Added
Great West Life Assurance Co75,646$31.8M0.06%+2,251+3.1%Added
Local Pensions Partnership Investment Ltd75,826$31.8M0.63%−6,500−7.9%Reduced
Bellevue Group AG76,897$32.3M0.72%−380.0%Reduced
KBC Group NV77,537$32.6M0.10%−10,826−12.3%Reduced
Martin Currie Ltd79,215$33.3M1.34%+6,272+8.6%Added
Mitsubishi UFJ Trust & Banking Corp79,742$33.5M0.09%+30,264+61.2%Added
Schroder Investment Management Group79,922$33.6M0.03%+6,798+9.3%Added
State Board of Administration of Florida Retirement System80,446$33.8M0.07%00.0%Unchanged
New York State Common Retirement Fund80,986$34.0M0.05%+25,902+47.0%Added
Lazard Freres Gestion S.A.S.81,233$34.1M0.83%+32,110+65.4%Added
Canada Pension Plan Investment Board81,564$34.3M0.03%−48,536−37.3%Reduced
Candriam Luxembourg S.C.A.82,191$34.5M0.22%+53,647+187.9%Added
Mogy Joel R Investment Counsel Inc85,724$36.0M2.32%+6,400+8.1%Added
Bank of Nova Scotia87,027$36.5M0.08%+62,938+261.3%Added
Chicago Capital, LLC87,299$36.7M1.04%+1,115+1.3%Added
Raiffeisen Bank International AG88,156$36.7M0.58%−13,231−13.0%Reduced
Pictet & Cie (Europe) SA89,000$37.4M0.89%00.0%Unchanged
CIBC Private Wealth Group, LLC103,552$37.4M0.08%+23,076+28.7%Added
Standard Life Aberdeen plc90,131$37.4M0.07%−152,528−62.9%Reduced
Royal London Asset Management Ltd91,909$38.6M0.09%+3,755+4.3%Added
Bank of Montreal99,969$42.0M0.02%−20,307−16.9%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.100,055$42.0M0.11%+23,177+30.1%Added
Thrivent Financial for Lutherans101,613$42.7M0.09%+1,382+1.4%Added
Riverbridge Partners LLC102,492$43.0M0.69%−889−0.9%Reduced
Davis R M Inc102,911$43.2M0.87%+216+0.2%Added
Bradley Foster & Sargent Inc103,849$43.6M0.75%+15,136+17.1%Added
Pinebridge Investments, L.P.108,364$45.5M0.37%+19,174+21.5%Added
Wells Fargo & Company110,478$46.4M0.01%+18,719+20.4%Added
Marshall Wace, LLP110,549$46.4M0.06%−96,565−46.6%Reduced
Stephens Investment Management Group LLC111,412$46.8M0.68%+2,763+2.5%Added
Frontier Capital Management Co LLC115,916$48.7M0.53%+25,787+28.6%Added
Quantum Capital Management, LLC117,567$49.4M5.11%+61,684+110.4%Added
BLI - Banque de Luxembourg Investments119,400$49.6M1.50%+1,000+0.8%Added
Brown Advisory Inc119,169$50.0M0.07%−4,932−4.0%Reduced
Kayne Anderson Rudnick Investment Management LLC119,187$50.1M0.12%−10,715−8.2%Reduced
CI Private Wealth, LLC120,504$50.6M0.08%−4,946−3.9%Reduced
Waratah Capital Advisors Ltd.123,393$51.8M3.53%+123,393New
California State Teachers Retirement System126,094$53.0M0.07%−2,291−1.8%Reduced
EULAV Asset Management126,215$53.0M1.31%+30.0%Added
National Pension Service126,400$53.1M0.05%+8,752+7.4%Added
Citigroup Inc132,236$55.5M0.04%+30,122+29.5%Added
Ameriprise Financial Inc133,941$56.2M0.02%+15,340+12.9%Added
ProShare Advisors LLC135,511$56.9M0.13%+12,414+10.1%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP133,775$57.1M0.56%−684−0.5%Reduced
Fiera Capital Corp137,588$57.8M0.21%−3,610−2.6%Reduced
Allianz Asset Management GmbH138,164$58.0M0.09%−23,097−14.3%Reduced
SG Americas Securities, LLC138,495$58.2M0.20%+98,413+245.5%Added
Aviva PLC138,627$58.2M0.14%+15,186+12.3%Added
California Public Employees Retirement System141,702$59.5M0.04%−928−0.7%Reduced
Rathbone Brothers plc143,768$60.4M0.29%+7,331+5.4%Added
Robeco Institutional Asset Management B.V.148,237$62.3M0.12%−24,091−14.0%Reduced
Mackenzie Financial Corp148,323$62.3M0.09%−8,197−5.2%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH150,298$63.1M0.13%+56,408+60.1%Added
LGT Capital Partners Ltd.155,138$65.2M2.89%+11,840+8.3%Added
Two Creeks Capital Management, LP160,254$67.3M4.30%+91,144+131.9%Added
Envestnet Asset Management Inc161,829$68.0M0.02%+12,255+8.2%Added
Railway Pension Investments Ltd165,130$69.3M0.98%−17,200−9.4%Reduced
Caisse de Depot Et Placement du Quebec167,974$70.5M0.15%+5,664+3.5%Added
Jupiter Asset Management Ltd168,947$70.9M0.68%+27,978+19.8%Added
Welch & Forbes LLC169,846$71.3M0.93%+527+0.3%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.170,832$71.7M0.07%+26,821+18.6%Added
AQR Capital Management LLC175,785$72.8M0.07%+53,106+43.3%Added
Victory Capital Management Inc180,165$75.7M0.08%+7,034+4.1%Added
Russell Investments Group, Ltd.181,838$76.3M0.10%+111,524+158.6%Added
Alliancebernstein L.P.181,892$76.4M0.03%−1,057,328−85.3%Reduced
Rhumbline Advisers183,195$76.9M0.07%+7,225+4.1%Added
Liontrust Investment Partners LLP187,629$78.8M1.23%+181,682+3,055.0%Added
Arrowstreet Capital, Limited Partnership190,910$80.2M0.07%+48,718+34.3%Added
Raymond James Financial Inc193,256$81.2M0.03%+19,366+11.1%Added
TimesSquare Capital Management, LLC197,746$83.0M1.34%+4,230+2.2%Added
Sumitomo Mitsui Trust Holdings, Inc.199,390$83.7M0.06%+940+0.5%Added
Epoch Investment Partners, Inc.200,967$84.4M0.44%+29,796+17.4%Added
Assenagon Asset Management S.A.206,551$86.7M0.15%−228,498−52.5%Reduced
First Trust Advisors LP219,027$92.0M0.08%+5,921+2.8%Added
Wellington Management Group LLP219,573$92.2M0.02%+24,204+12.4%Added
American Capital Management Inc221,606$93.1M3.79%+15,544+7.5%Added
Champlain Investment Partners, LLC224,605$94.3M0.68%+224,605New
Swiss National Bank231,000$97.0M0.07%−1,600−0.7%Reduced
Bank Julius Baer & Co. Ltd, Zurich236,911$99.2M0.32%+13,070+5.8%Added
D. E. Shaw & Co., Inc.238,234$100.0M0.12%+26,098+12.3%Added
Comgest Global Investors S.A.S.245,301$103.0M1.84%+53,790+28.1%Added
FMR LLC253,964$106.7M0.01%−32,935−11.5%Reduced
Qube Research & Technologies Ltd264,019$110.9M0.17%+42,823+19.4%Added
Seilern Investment Management Ltd265,949$111.7M7.30%−7,618−2.8%Reduced
Barclays PLC279,671$117.4M0.05%+63,692+29.5%Added
Montrusco Bolton Investments Inc.285,768$120.0M1.58%+285,768New
TD Asset Management Inc293,713$123.3M0.11%+19,908+7.3%Added
Williams Jones Wealth Management, LLC.295,338$124.0M1.58%−29,183−9.0%Reduced