Position in WAT
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$251,234,797
+$29,026,655 QoQ
Shares Held
843,636
+44.2% QoQ
Ownership
0.859%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 56.6756278774258.ToString("F0")%
Shared 0.ToString("F0")%
None 43.32437212257419.ToString("F0")%
Common Shares in WAT Over Time
Shares Held
Position Value (USD)
Derivatives in WAT
reported options exposure · as of Dec 31, 2023CallValue
$7,341,829
CallShares
22,300
PutValue
$757,229
PutShares
2,300
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026BANK OF AMERICA CORP /DE/ holds $6,863,803,811 across 34 Diagnostics & Research names. WAT ranks #6 (3.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
5,533,403 | $2,719,833,571 | |
| 2 | DHR |
Danaher Corp /De/
|
6,252,116 | $1,185,401,190 | |
| 3 | DGX |
Quest Diagnostics Inc
|
1,752,902 | $343,533,731 | |
| 4 | IDXX |
Idexx Laboratories Inc /De
|
488,017 | $274,211,867 | |
| 5 | MTD |
Mettler Toledo International Inc/
|
207,286 | $261,429,102 | |
| 6 | WAT |
Waters Corp /De/
This page
|
843,636 | $251,234,797 | |
| 7 | IQV |
Iqvia Holdings Inc.
|
1,299,122 | $221,552,262 | |
| 8 | CRL |
Charles River Laboratories International, Inc.
|
1,135,027 | $195,792,156 |
All Filings in WAT
Export CSV
29 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $251,234,797 | 843,636 | Shares | Defined | 2026-05-18 | |
| 2025-12-31 | $222,208,142 | 585,020 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $162,841,499 | 543,149 | Shares | Defined | 2026-02-03 | |
| 2025-06-30 | $181,697,306 | 520,563 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $175,155,149 | 475,229 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $155,241,770 | 418,464 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $158,973,846 | 441,729 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $121,750,014 | 419,654 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $148,374,831 | 431,034 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $757,229 | 2,300 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $126,209,659 | 383,348 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $7,341,829 | 22,300 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $114,196,120 | 416,455 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $91,645,511 | 343,834 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $117,531,207 | 379,586 | Shares | Defined | 2023-05-12 | |
| 2022-12-31 | $116,255,204 | 339,352 | Shares | Defined | 2023-02-10 | |
| 2022-09-30 | $100,003,711 | 371,030 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $117,184,126 | 354,052 | Shares | Defined | 2022-08-12 | |
| 2022-03-31 | $107,965,745 | 347,839 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $126,724,983 | 340,110 | Shares | Defined | 2022-02-08 | |
| 2021-09-30 | $127,363,154 | 356,460 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $1,036,830 | 3,000 | Put | Defined | 2021-09-13 | |
| 2021-06-30 | $108,443,083 | 313,773 | Shares | Defined | 2021-09-13 | |
| 2021-06-30 | $1,036,830 | 3,000 | Call | Defined | 2021-09-13 | |
| 2021-03-31 | $109,810,673 | 386,426 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $75,575,425 | 305,454 | Shares | Defined | 2021-02-10 | |
| 2020-09-30 | $76,101,515 | 388,908 | Shares | Defined | 2020-11-13 | |
| 2020-06-30 | $63,578,549 | 352,431 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $77,704,218 | 426,829 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||