Position in IDXX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$917,772,583
-$298,656,094 QoQ
Shares Held
1,633,367
-9.2% QoQ
Ownership
2.07%
of shares outstanding
% of Portfolio
2.80%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 0.ToString("F0")%
Shared 98.65125229051401.ToString("F0")%
None 1.348747709485988.ToString("F0")%
Common Shares in IDXX Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026BAMCO INC /NY/ holds $1,365,916,765 across 13 Diagnostics & Research names. IDXX ranks #1 (67.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | IDXX |
Idexx Laboratories Inc /De
This page
|
1,633,367 | $917,772,583 | |
| 2 | MTD |
Mettler Toledo International Inc/
|
133,639 | $168,545,506 | |
| 3 | BLLN |
BillionToOne, Inc.
|
741,485 | $58,532,825 | |
| 4 | CDNA |
CareDx, Inc.
|
3,336,409 | $57,920,060 | |
| 5 | ICLR |
Icon PLC
|
426,805 | $47,230,241 | |
| 6 | RDNT |
RadNet, Inc.
|
810,066 | $45,274,588 | |
| 7 | ILMN |
Illumina, Inc.
|
219,359 | $27,038,190 | |
| 8 | VCYT |
Veracyte, Inc.
|
655,522 | $21,114,363 |
All Filings in IDXX
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $917,772,583 | 1,633,367 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $1,216,428,677 | 1,798,041 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $1,203,751,176 | 1,884,129 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $1,090,175,410 | 2,032,620 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $865,003,351 | 2,059,777 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $829,163,015 | 2,005,522 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $971,668,406 | 1,923,258 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $991,616,186 | 2,035,337 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $1,136,526,193 | 2,104,951 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $1,276,624,435 | 2,300,017 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $1,021,607,019 | 2,336,330 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $1,193,615,889 | 2,376,632 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $1,178,309,999 | 2,356,243 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $968,328,144 | 2,373,586 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $777,813,291 | 2,387,395 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $848,780,629 | 2,420,040 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $1,356,803,988 | 2,480,174 | Shares | Defined | 2022-05-13 | |
| 2021-12-31 | $1,664,264,893 | 2,527,511 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $1,612,627,123 | 2,593,065 | Shares | Defined | 2021-11-12 | |
| 2021-06-30 | $1,702,864,685 | 2,696,326 | Shares | Defined | 2021-08-13 | |
| 2021-03-31 | $1,424,172,474 | 2,910,573 | Shares | Defined | 2021-05-19 | |
| 2020-12-31 | $1,553,448,998 | 3,107,706 | Shares | Defined | 2021-02-12 | |
| 2020-09-30 | $1,273,750,697 | 3,240,189 | Shares | Defined | 2020-11-13 | |
| 2020-06-30 | $1,134,804,161 | 3,437,134 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $858,044,360 | 3,542,125 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||