ADAGE CAPITAL PARTNERS GP, L.L.C.
Position in IDXX — Idexx Laboratories Inc /De
CIK 1165408
Boston, MA
Position in IDXX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$38,377,648
+$3,166,292 QoQ
Shares Held
68,301
+31.2% QoQ
Ownership
0.087%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
24 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, 2026ADAGE CAPITAL PARTNERS GP, L.L.C. holds $583,875,820 across 11 Diagnostics & Research names. IDXX ranks #5 (6.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
545,832 | $268,292,802 | |
| 2 | GH |
Guardant Health, Inc.
|
816,095 | $75,382,695 | |
| 3 | DHR |
Danaher Corp /De/
|
376,027 | $71,294,719 | |
| 4 | CRL |
Charles River Laboratories International, Inc.
|
256,009 | $44,161,552 | |
| 5 | IDXX |
Idexx Laboratories Inc /De
This page
|
68,301 | $38,377,648 | |
| 6 | LH |
Labcorp Holdings Inc.
|
106,000 | $28,281,860 | |
| 7 | WAT |
Waters Corp /De/
|
87,856 | $26,163,516 | |
| 8 | QGEN |
Qiagen N.V.
|
285,000 | $11,411,400 |
All Filings in IDXX
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24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $38,377,648 | 68,301 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $35,211,356 | 52,047 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $22,789,206 | 35,670 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $31,751,864 | 59,201 | Shares | Sole | 2025-08-14 | |
| 2024-12-31 | $11,976,116 | 28,967 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $17,149,692 | 33,945 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $25,762,161 | 52,878 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $30,650,206 | 56,767 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $39,242,590 | 70,701 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $47,555,736 | 108,756 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $41,534,923 | 82,701 | Shares | Other | 2023-08-14 | |
| 2023-03-31 | $41,457,132 | 82,901 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $34,350,639 | 84,201 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $27,628,165 | 84,801 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $25,428,275 | 72,501 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $48,415,357 | 88,501 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $99,033,042 | 150,401 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $56,966,661 | 91,601 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $58,600,892 | 92,789 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $46,038,688 | 94,089 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $47,432,164 | 94,889 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $37,423,285 | 95,198 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $32,454,067 | 98,298 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $17,715,011 | 73,130 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||