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IDEXX Laboratories Ownership | Who Owns IDEXX Laboratories?

OverviewForecastRevenueFinancialsChartTranscripts

IDEXX Laboratories Ownership Summary

IDEXX Laboratories is owned by 52.29% institutional investors, 0.68% insiders, and 47.02% retail investors. Vanguard group is the largest institutional shareholder, holding 12.39% of IDXX shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.20% of its assets in IDEXX Laboratories shares.

IDXX Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockIDEXX Laboratories52.29%0.68%47.02%
SectorHealthcare Stocks 42.54%10.83%46.63%
IndustryDiagnostics & Research Stocks46.31%10.49%43.20%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vanguard group9.96M12.39%$6.36B
Blackrock9.60M11.56%$4.68B
Blackrock funding, inc. /de8.21M10.20%$5.24B
State street3.52M4.37%$2.25B
Fundsmith llp2.61M3.25%$1.67B
Geode capital management2.50M3.11%$1.59B
Bank of new york mellon2.06M2.56%$1.31B
Bamco inc /ny/1.88M2.34%$1.20B
Morgan stanley1.62M2.02%$1.04B
Invesco1.32M1.64%$843.50M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Manitou investment management95.08K10.60%$60.74M
Capital counsel llc/ny432.69K10.60%$276.44M
Fundsmith llp2.61M8.43%$1.67B
Haven capital group13.67K7.78%$8.73M
Fundsmith investment services688.36K6.85%$439.78M
Lountzis asset management32.71K6.82%$20.90M
Bourne lent asset management31.60K6.56%$16.95M
Seilern investment management141.28K6.52%$90.26M
Perkins capital management9.70K5.46%$6.20M
Quantum capital management, llc / nj77.83K5.45%$49.72B

Top Buyers

HolderShares% AssetsChange
Norges bank997.14K0.05%997.14K
Bank of new york mellon2.06M0.26%605.29K
Blackrock9.60M0.11%395.97K
Jpmorgan chase869.93K0.03%326.35K
Cibc private wealth group374.75K0.36%271.19K

Top Sellers

HolderShares% AssetsChange
Alyeska investment group---378.32K
Durable capital partners lp---364.76K
Generation investment management llp260.39K1.10%-306.93K
Select equity group282.02K0.74%-291.69K
Vontobel147.38K0.28%-266.15K

New Positions

HolderShares% AssetsChangeValue
Norges bank997.14K0.05%997.14K$412.26M
Zurich insurance group ltd/fi224.97K1.03%224.97K$143.73M
Westfield capital management co lp94.13K0.25%94.13K$60.14M
Axa investment managers32.59K0.06%32.59K$20.82M
Carmenna advisors23.06K2.45%23.06K$11.23M

Sold Out

HolderChange
First premier bank-1.00
Sittner & nelson-1.00
American capital advisory-1.00
Atticus wealth management-1.00
Reston wealth management-1.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025873-29.77%42,051,138-41.34%520.66%366-40.29%327-21.20%
Jun 30, 20251,2396.72%74,279,5210.96%921.13%6185.64%40715.95%
Mar 31, 202533-97.09%6,169,841-91.41%70.10%16-96.76%8-98.17%
Dec 31, 2024802-29.21%46,571,971-35.65%560.73%325-28.41%324-24.30%
Sep 30, 20241,120-0.44%72,326,946-3.33%871.08%451-8.33%42310.73%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard US Total Market Shares ETF2.61M3.20%-7.95K
Vanguard Total Stock Mkt Idx Inv2.53M3.16%-59.89K
Fundsmith Equity I Acc2.52M3.13%-
R233 Fundsmith Equity (GBP)2.52M3.10%-
Vanguard Institutional 500 Index Trust2.33M2.90%16.57K
Vanguard 500 Index Investor1.99M2.49%-291.53K
Vanguard Mid Cap Index Institutional1.79M2.24%19.34K
Invesco QQQ Trust1.66M2.07%11.48K
Fidelity 500 Index1.02M1.27%437.00
SPDR® S&P 500 ETF1.02M1.25%-14.88K

Recent Insider Transactions

DateNameRoleActivityValue
Nov 07, 2025Hunt Nimrata Executive Vice PresidentSell$1.03M
Nov 07, 2025Hunt Nimrata Executive Vice PresidentSell$972.24K
Nov 07, 2025Hunt Nimrata Executive Vice PresidentSell$3.59M
Nov 07, 2025Hunt Nimrata Executive Vice PresidentSell$1.03M
Aug 22, 2025SZOSTAK M ANNE-Sell$1.42M

Insider Transactions Trends

DateBuySell
2025 Q4-4
2025 Q3-21
2025 Q2-4
2025 Q1-2
2024 Q4-1

IDXX Ownership FAQ

Who Owns IDEXX Laboratories?

IDEXX Laboratories shareholders are primarily institutional investors at 52.29%, followed by 0.68% insiders and 47.03% retail investors. The average institutional ownership in IDEXX Laboratories's industry, Diagnostics & Research Stocks, is 46.31%, which IDEXX Laboratories exceeds.

Who owns the most shares of IDEXX Laboratories?

IDEXX Laboratories’s largest shareholders are Vanguard group (9.96M shares, 12.39%), Blackrock (9.6M shares, 11.56%), and Blackrock funding, inc. /de (8.21M shares, 10.20%). Together, they hold 34.15% of IDEXX Laboratories’s total shares outstanding.

Does Blackrock own IDEXX Laboratories?

Yes, BlackRock owns 11.56% of IDEXX Laboratories, totaling 9.6M shares as of Jun 2024. This represents 0.11% of BlackRock's total assets, with a market value of 4.68B$. In the last quarter, BlackRock increased its holdings by 395.97K shares, a 4.30% change.

Who is IDEXX Laboratories’s biggest shareholder by percentage of total assets invested?

Manitou investment management is IDEXX Laboratories’s biggest shareholder by percentage of total assets invested, with 10.60% of its assets in 95.08K IDEXX Laboratories shares, valued at 60.74M$.

Who is the top mutual fund holder of IDEXX Laboratories shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of IDEXX Laboratories shares, with 3.20% of its total shares outstanding invested in 2.61M IDEXX Laboratories shares.

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