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IDXX — IDEXX LABS INC

Reported value held$24.08B
Funds holding (latest)56
SectorHealth Care

Index member: Invesco QQQ Trust · S&P 500

Funds holding (Q2 2026)49
Institutional value$17.05B · 32.83M sh
New / Add / Cut / Exit4 / 23 / 21 / 4
Top-5 / Top-10 concentration54.6% / 69.4%
Institutional holdings change Accumulating +11.5% (+3.39M sh)
Institutional value change Up +5.3%

As of Q2 2026, 49 SEC-registered investment managers reported holding IDXX (IDEXX LABS INC) in their latest 13F filings, with a combined reported value of $17.05B across 32.83M shares. That is +11.5% by share count (+3.39M shares) versus the previous quarter, while reported value moved +5.3%. Ownership is concentrated: the five largest holders account for 54.6% of reported value and the top ten for 69.4%.

Compared with the prior quarter, 4 opened new positions, 23 added to existing stakes, 21 trimmed, 4 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

IDXX is a constituent of the Invesco QQQ Trust, S&P 500 and is classified in the Health Care sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
Vanguard Group history Q4 2025 9.95M $6.73B 0.10% Hold
BlackRock Inc history Q2 2026 8.17M $4.30B 0.07% Reduce
Invesco Ltd history Q2 2026 3.61M $1.90B 0.16% Add
Geode Capital Management history Q2 2026 2.56M $1.35B 0.07% Reduce
Baron Funds history Q2 2026 1.98M $1.04B 2.50% Add
Morgan Stanley history Q2 2026 1.36M $713.91M 0.04% Add
BNY Mellon history Q2 2026 1.19M $628.22M 0.10% Reduce
Arrowstreet Capital history Q2 2026 1.07M $561.75M 0.25% Add
Northern Trust Corp history Q2 2026 918.14K $483.34M 0.06% Add
Fidelity Management & Research (FMR) history Q2 2026 822.64K $433.07M 0.02% Add
Capital Research Global Investors history Q2 2026 789.11K $415.47M 0.06% Add
JPMorgan Chase & Co history Q2 2026 755.79K $405.05M 0.05% New
Principal Global Investors history Q2 2026 743.25K $391.30M 0.19% Reduce
Goldman Sachs Group history Q2 2026 738.71K $388.89M 0.04% Add
Wellington Management Group history Q2 2026 726.70K $382.56M 0.07% Reduce
Charles Schwab Investment Management history Q2 2026 650.43K $342.41M 0.05% Add
Legal & General Investment Management America history Q2 2026 617.20K $324.92M 0.07% Reduce
Franklin Resources history Q2 2026 575.78K $303.12M 0.07% Reduce
Amundi US history Q2 2026 569.73K $299.93M 0.07% Reduce
Polen Capital Management history Q2 2026 532.38K $280.27M 2.41% Reduce

View all 56 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
BlackRock Inc — — — — — — — — — — — — 9.42M 8.47M 8.70M 8.37M 8.21M 8.53M 8.37M 8.17M
Invesco Ltd 1.06M 1.01M 1.08M 777.44K 878.74K 955.34K 1.19M 1.24M 1.22M 1.33M 1.47M 1.32M 1.09M 1.16M 1.17M 1.16M 1.32M 1.50M 1.68M 3.61M
Geode Capital Management 1.77M 1.80M 1.85M 1.86M 1.89M 1.92M 1.95M 2.01M 2.06M 2.10M 2.16M 2.22M 2.26M 2.30M 2.41M 2.46M 2.50M 2.58M 2.66M 2.56M
Baron Funds 2.59M 2.53M 2.48M 2.42M 2.39M 2.37M 2.36M 2.38M 2.34M 2.30M 2.10M 2.04M 1.92M 2.01M 2.06M 2.03M 1.88M 1.80M 1.63M 1.98M
Morgan Stanley 361.97K 438.70K 311.70K 755.62K 725.31K 986.23K 935.70K 1.02M 1.06M 1.09M 1.23M 1.14M 1.18M 1.63M 1.66M 1.66M 1.62M 1.55M 1.32M 1.36M
BNY Mellon 943.99K 926.27K 739.99K 716.25K 696.33K 692.34K 673.46K 666.05K 661.37K 656.90K 631.99K 619.81K 597.66K 577.04K 566.58K 1.45M 2.06M 1.62M 1.50M 1.19M
Arrowstreet Capital 474.05K 509.49K 419.08K 392.80K 263.11K 268.69K 252.03K 234.89K 174.50K 175.17K 172.58K 127.00K 133.57K 142.19K 190.91K 206.14K 185.09K 550.37K 838.84K 1.07M
Northern Trust Corp 1.01M 981.40K 978.92K 901.74K 870.46K 873.93K 880.38K 853.30K 919.19K 862.60K 839.12K 815.42K 769.50K 912.87K 905.07K 957.09K 942.37K 923.15K 911.89K 918.14K
Fidelity Management & Research (FMR) 964.88K 1.01M 1.13M 2.07M 1.60M 1.27M 320.78K 308.67K 315.60K 326.29K 368.41K 280.84K 290.86K 286.90K 253.96K 269.88K 233.05K 251.41K 282.98K 822.64K
Capital Research Global Investors — — — — — — — — — 244.86K 336.09K 426.21K 426.56K 616.00K 667.80K 684.96K 690.60K 607.75K 781.35K 789.11K
JPMorgan Chase & Co 249.33K 256.90K 381.99K 432.86K 408.67K 528.40K 553.29K 735.51K 801.27K 860.48K 777.26K 756.24K 594.00K 537.44K 443.06K 543.58K 869.93K 673.23K — 755.79K
Principal Global Investors 1.03M 917.02K 849.00K 592.83K 1.20M 1.04M 887.51K 804.55K 815.86K 781.37K 762.97K 754.12K 730.47K 711.20K 1.13M 1.13M 1.32M 968.95K 881.19K 743.25K
Goldman Sachs Group 340.61K 314.59K 385.96K 392.98K 403.38K 369.36K 482.39K 497.84K 542.24K 614.54K 589.59K 815.36K 768.62K 426.62K 489.21K 589.05K 711.94K 831.91K 716.92K 738.71K
Wellington Management Group 30.86K 28.09K 23.91K 17.22K 15.46K 17.48K 14.03K 3.42K 3.49K 55.91K 54.87K 55.15K 74.81K 195.37K 219.57K 188.17K 186.38K 779.21K 735.48K 726.70K
Charles Schwab Investment Management 441.52K 449.99K 443.44K 447.49K 433.47K 446.37K 454.98K 457.49K 462.54K 476.80K 501.59K 520.25K 515.48K 531.69K 555.19K 556.56K 575.93K 590.06K 610.22K 650.43K
Legal & General Investment Management America 761.70K 760.00K 780.09K 739.15K 702.20K 678.93K 673.86K 694.96K 672.04K 787.20K 777.24K 777.34K 774.69K 610.02K 636.86K 648.63K 675.53K 670.61K 650.80K 617.20K
Franklin Resources 1.29M 1.25M 1.31M 1.21M 1.21M 1.37M 1.35M 1.45M 1.38M 1.41M 1.55M 1.38M 1.41M 867.05K 554.45K 592.65K 572.98K 627.16K 662.63K 575.78K
Amundi US 396.69K 461.45K 315.96K 385.14K 403.99K 456.51K 497.94K 582.48K 612.07K 753.50K 750.00K 574.50K 701.83K 758.67K 723.11K 675.67K 592.60K 618.74K 610.78K 569.73K
Polen Capital Management — — — — — — — — — — — — — — — 1.20M 1.13M 960.54K 695.81K 532.38K
Bank of America Corp 1.29M 1.11M 1.08M 721.31K 699.53K 740.82K 721.38K 668.16K 804.46K 637.45K 633.71K 650.44K 611.17K 407.64K 550.29K 494.15K 488.34K 487.36K 488.02K 477.00K

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