GW&K Investment Management, LLC
Position in IDXX — Idexx Laboratories Inc /De
CIK 1082917
BOSTON, MA
Position in IDXX
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$15,954,866
-$3,738,922 QoQ
Shares Held
28,395
-2.5% QoQ
Ownership
0.036%
of shares outstanding
% of Portfolio
0.14%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in IDXX Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026GW&K Investment Management, LLC holds $247,104,364 across 16 Diagnostics & Research names. IDXX ranks #6 (6.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MEDP |
Medpace Holdings, Inc.
|
182,772 | $87,765,286 | |
| 2 | NTRA |
Natera, Inc.
|
242,020 | $48,401,578 | |
| 3 | VCYT |
Veracyte, Inc.
|
1,437,322 | $46,296,141 | |
| 4 | CRL |
Charles River Laboratories International, Inc.
|
95,157 | $16,414,582 | |
| 5 | NEO |
Neogenomics Inc
|
2,190,758 | $16,255,424 | |
| 6 | IDXX |
Idexx Laboratories Inc /De
This page
|
28,395 | $15,954,866 | |
| 7 | TMO |
Thermo Fisher Scientific Inc.
|
32,010 | $15,733,875 | |
| 8 | DHR |
Danaher Corp /De/
|
736 | $139,545 |
All Filings in IDXX
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $15,954,866 | 28,395 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $19,693,788 | 29,110 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $18,597,449 | 29,109 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $18,600,807 | 34,681 | Shares | Sole | 2025-08-11 | |
| 2025-03-31 | $14,906,545 | 35,496 | Shares | Sole | 2025-05-05 | |
| 2024-12-31 | $14,241,767 | 34,447 | Shares | Sole | 2025-02-05 | |
| 2024-09-30 | $17,848,412 | 35,328 | Shares | Sole | 2024-11-07 | |
| 2024-06-30 | $12,365,136 | 25,380 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $13,865,942 | 25,681 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $14,133,792 | 25,464 | Shares | Other | 2024-02-09 | |
| 2023-09-30 | $11,784,863 | 26,951 | Shares | Other | 2023-11-09 | |
| 2023-06-30 | $13,852,005 | 27,581 | Shares | Other | 2023-08-09 | |
| 2023-03-31 | $14,084,752 | 28,165 | Shares | Sole | 2023-05-09 | |
| 2022-12-31 | $14,142,749 | 34,667 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $11,891,374 | 36,499 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $13,219,364 | 37,691 | Shares | Sole | 2022-08-09 | |
| 2022-03-31 | $21,916,864 | 40,063 | Shares | Sole | 2022-05-09 | |
| 2021-12-31 | $27,103,530 | 41,162 | Shares | Other | 2022-02-11 | |
| 2021-09-30 | $26,164,576 | 42,072 | Shares | Other | 2021-11-10 | |
| 2021-06-30 | $30,686,382 | 48,589 | Shares | Other | 2021-08-10 | |
| 2021-03-31 | $21,346,148 | 43,625 | Shares | Other | 2021-05-11 | |
| 2020-12-31 | $22,311,696 | 44,635 | Shares | Other | 2021-02-05 | |
| 2020-09-30 | $23,933,716 | 60,883 | Shares | Other | 2020-11-10 | |
| 2020-06-30 | $20,307,810 | 61,509 | Shares | Other | 2020-08-06 | |
| 2020-03-31 | $13,814,704 | 57,029 | Shares | Other | 2020-05-11 | |
| No filing history on record for this holder in this stock. | ||||||