Position in IDXX
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$4,700,520,563
-$1,073,585,852 QoQ
Shares Held
8,365,553
-2.0% QoQ
Ownership
10.6%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority
Sole 91.94268448242453.ToString("F0")%
Shared 0.ToString("F0")%
None 8.057315517575466.ToString("F0")%
Common Shares in IDXX Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026BlackRock, Inc. holds $54,004,938,495 across 42 Diagnostics & Research names. IDXX ranks #3 (8.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
30,427,192 | $14,955,877,673 | |
| 2 | DHR |
Danaher Corp /De/
|
51,640,619 | $9,791,061,354 | |
| 3 | IDXX |
Idexx Laboratories Inc /De
This page
|
8,365,553 | $4,700,520,563 | |
| 4 | A |
Agilent Technologies, Inc.
|
25,902,662 | $2,952,385,405 | |
| 5 | IQV |
Iqvia Holdings Inc.
|
15,027,444 | $2,562,780,290 | |
| 6 | WAT |
Waters Corp /De/
|
8,543,014 | $2,544,109,560 | |
| 7 | ILMN |
Illumina, Inc.
|
19,023,590 | $2,344,847,691 | |
| 8 | MTD |
Mettler Toledo International Inc/
|
1,771,002 | $2,233,587,712 |
All Filings in IDXX
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $4,700,520,563 | 8,365,553 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $5,774,106,415 | 8,534,886 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $5,242,099,465 | 8,205,011 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $4,491,301,493 | 8,373,982 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $3,654,855,915 | 8,703,074 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $3,502,896,022 | 8,472,562 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $4,756,754,406 | 9,415,214 | Shares | Sole | 2024-11-13 | |
| No filing history on record for this holder in this stock. | ||||||