Position in IDXX
as of Jun 30, 2026
· filed Aug 11, 2026
Position Value
$483,564,619
-$48,172,116 QoQ
Shares Held
918,556
-2.9% QoQ
Ownership
1.17%
of shares outstanding
% of Portfolio
1.47%
of 13F equity value
Holder Rank
#12
of 1,286 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 83%
Shared 0%
None 17%
Common Shares in IDXX Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026BLAIR WILLIAM & CO/IL holds $890,730,193 across 22 Diagnostics & Research names. IDXX ranks #1 (54.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | IDXX |
Idexx Laboratories Inc /De
This page
|
918,556 | $483,564,619 | |
| 2 | DHR |
Danaher Corp /De/
|
971,095 | $184,974,175 | |
| 3 | TMO |
Thermo Fisher Scientific Inc.
|
160,038 | $80,236,651 | |
| 4 | MTD |
Mettler Toledo International Inc/
|
24,905 | $31,816,386 | |
| 5 | GH |
Guardant Health, Inc.
|
179,266 | $26,895,277 | |
| 6 | TWST |
Twist Bioscience Corp
|
256,556 | $26,394,481 | |
| 7 | DGX |
Quest Diagnostics Inc
|
93,291 | $19,773,027 | |
| 8 | VCYT |
Veracyte, Inc.
|
179,712 | $10,554,485 |
All Filings in IDXX
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26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $483,564,619 | 918,556 | Shares | Sole | 2026-08-11 | |
| 2026-03-31 | $531,736,735 | 946,336 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $677,460,228 | 1,001,375 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $659,197,757 | 1,031,786 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $579,518,051 | 1,080,505 | Shares | Sole | 2025-07-24 | |
| 2025-03-31 | $458,068,861 | 1,090,770 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $456,856,988 | 1,105,014 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $588,868,770 | 1,165,569 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $571,513,857 | 1,173,058 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $642,054,519 | 1,189,144 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $666,754,367 | 1,201,251 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $524,699,950 | 1,199,945 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $598,724,956 | 1,192,133 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $604,693,735 | 1,209,194 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $491,900,625 | 1,205,757 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $399,061,994 | 1,224,868 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $431,638,851 | 1,230,687 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $687,118,848 | 1,256,021 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $849,434,470 | 1,290,032 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $804,678,275 | 1,293,903 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $852,570,395 | 1,349,965 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $680,236,804 | 1,390,196 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $739,121,778 | 1,478,628 | Shares | Sole | 2021-02-09 | |
| 2020-09-30 | $593,925,919 | 1,510,839 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $512,300,687 | 1,551,674 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $378,682,648 | 1,563,254 | Shares | Sole | 2020-05-11 | |
| No filing history on record for this holder in this stock. | ||||||