Position in WAT
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$1,378,849,136
+$381,903,643 QoQ
Shares Held
4,630,118
+76.4% QoQ
Ownership
4.72%
of shares outstanding
% of Portfolio
0.49%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 61.228245154875104.ToString("F0")%
Shared 34.18677450553096.ToString("F0")%
None 4.584980339593937.ToString("F0")%
Common Shares in WAT Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $6,634,384,911 across 18 Diagnostics & Research names. WAT ranks #3 (20.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
3,013,109 | $1,481,033,464 | |
| 2 | A |
Agilent Technologies, Inc.
|
12,624,090 | $1,438,893,775 | |
| 3 | WAT |
Waters Corp /De/
This page
|
4,630,118 | $1,378,849,136 | |
| 4 | DHR |
Danaher Corp /De/
|
4,165,769 | $789,829,800 | |
| 5 | NTRA |
Natera, Inc.
|
2,040,106 | $408,000,796 | |
| 6 | ICLR |
Icon PLC
|
2,727,824 | $301,861,000 | |
| 7 | MTD |
Mettler Toledo International Inc/
|
148,743 | $187,594,670 | |
| 8 | CRL |
Charles River Laboratories International, Inc.
|
908,850 | $156,776,623 |
All Filings in WAT
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,378,849,136 | 4,630,118 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $996,945,493 | 2,624,715 | Shares | Sole | 2026-01-22 | |
| 2025-09-30 | $806,396,854 | 2,689,693 | Shares | Sole | 2025-10-29 | |
| 2025-06-30 | $650,600,086 | 1,863,970 | Shares | Sole | 2025-08-08 | |
| 2025-03-31 | $761,643,267 | 2,066,482 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $720,913,187 | 1,943,267 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $769,765,838 | 2,138,892 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $701,473,020 | 2,417,872 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $994,067,045 | 2,887,799 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $1,005,777,232 | 3,054,938 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $924,454,315 | 3,371,337 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $925,093,168 | 3,470,748 | Shares | Sole | 2023-08-09 | |
| 2023-03-31 | $799,168,340 | 2,581,043 | Shares | Sole | 2023-05-10 | |
| 2022-12-31 | $910,032,248 | 2,656,408 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $707,172,865 | 2,623,726 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $811,624,187 | 2,452,185 | Shares | Sole | 2022-08-09 | |
| 2022-03-31 | $764,491,496 | 2,463,003 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $948,793,852 | 2,546,414 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $927,336,774 | 2,595,401 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $1,080,252,090 | 3,125,639 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $994,042,853 | 3,498,057 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $975,904,144 | 3,944,322 | Shares | Sole | 2021-05-12 | |
| 2020-09-30 | $783,120,161 | 4,002,045 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $783,802,098 | 4,344,801 | Shares | Sole | 2020-11-20 | |
| 2020-03-31 | $1,054,847,030 | 5,794,271 | Shares | Sole | 2020-11-20 | |
| No filing history on record for this holder in this stock. | ||||||