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BLAIR WILLIAM & CO/IL

Position in IDXX — Idexx Laboratories Inc /De

CIK 902367 CHICAGO, IL

Position in IDXX

as of Mar 31, 2026 · filed May 8, 2026
Position Value
$531,736,735
-$145,723,493 QoQ
Shares Held
946,336
-5.5% QoQ
Ownership
1.20%
of shares outstanding
% of Portfolio
1.85%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 83.36573901869949.ToString("F0")% Shared 0.ToString("F0")% None 16.63426098130051.ToString("F0")%

Common Shares in IDXX Over Time

Shares Held

Position Value (USD)

Position in Diagnostics & Research

Healthcare · as of Mar 31, 2026

BLAIR WILLIAM & CO/IL holds $949,814,483 across 21 Diagnostics & Research names. IDXX ranks #1 (56.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 IDXX
Idexx Laboratories Inc /De
This page
946,336 $531,736,735

All Filings in IDXX

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $531,736,735 946,336
2025-12-31 $677,460,228 1,001,375
2025-09-30 $659,197,757 1,031,786
2025-06-30 $579,518,051 1,080,505
2025-03-31 $458,068,861 1,090,770
2024-12-31 $456,856,988 1,105,014
2024-09-30 $588,868,770 1,165,569
2024-06-30 $571,513,857 1,173,058
2024-03-31 $642,054,519 1,189,144
2023-12-31 $666,754,367 1,201,251
2023-09-30 $524,699,950 1,199,945
2023-06-30 $598,724,956 1,192,133
2023-03-31 $604,693,735 1,209,194
2022-12-31 $491,900,625 1,205,757
2022-09-30 $399,061,994 1,224,868
2022-06-30 $431,638,851 1,230,687
2022-03-31 $687,118,848 1,256,021
2021-12-31 $849,434,470 1,290,032
2021-09-30 $804,678,275 1,293,903
2021-06-30 $852,570,395 1,349,965
2021-03-31 $680,236,804 1,390,196
2020-12-31 $739,121,778 1,478,628
2020-09-30 $593,925,919 1,510,839
2020-06-30 $512,300,687 1,551,674
2020-03-31 $378,682,648 1,563,254