Position in WAT
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$26,163,516
+$15,879,053 QoQ
Shares Held
87,856
+198.2% QoQ
Ownership
0.089%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
20 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in WAT 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. WAT ranks #7 (4.5% 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
|
68,301 | $38,377,648 | |
| 6 | LH |
Labcorp Holdings Inc.
|
106,000 | $28,281,860 | |
| 7 | WAT |
Waters Corp /De/
This page
|
87,856 | $26,163,516 | |
| 8 | QGEN |
Qiagen N.V.
|
285,000 | $11,411,400 |
All Filings in WAT
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20 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $26,163,516 | 87,856 | Shares | Sole | 2026-05-15 | |
| 2025-06-30 | $10,284,463 | 29,465 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $19,963,594 | 54,165 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $20,576,405 | 55,465 | Shares | Sole | 2025-02-14 | |
| 2024-06-30 | $1,991,673 | 6,865 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $8,129,679 | 23,617 | Shares | Sole | 2024-05-15 | |
| 2023-06-30 | $1,723,447 | 6,466 | Shares | Other | 2023-08-14 | |
| 2023-03-31 | $12,219,547 | 39,465 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $20,714,099 | 60,465 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $16,431,896 | 60,965 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $20,773,959 | 62,765 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $10,480,318 | 33,765 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $16,791,219 | 45,065 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $48,830,404 | 136,665 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $33,719,439 | 97,565 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $19,268,999 | 67,808 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $17,098,701 | 69,108 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $13,569,038 | 69,343 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $1,198,397 | 6,643 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $4,120,519 | 22,634 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||