Position in WAT
as of Jun 30, 2026
· filed Aug 11, 2026
Position Value
$300,438,541
+$57,816,119 QoQ
Shares Held
801,084
-1.7% QoQ
Ownership
0.815%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#31
of 1,179 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 80%
Shared 11%
None 8%
Common Shares in WAT Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026DIMENSIONAL FUND ADVISORS LP holds $5,660,397,604 across 32 Diagnostics & Research names. WAT ranks #10 (5.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
1,712,845 | $858,751,967 | |
| 2 | DHR |
Danaher Corp /De/
|
2,651,651 | $505,086,479 | |
| 3 | DGX |
Quest Diagnostics Inc
|
1,988,048 | $421,366,772 | |
| 4 | LH |
Labcorp Holdings Inc.
|
1,367,166 | $382,806,480 | |
| 5 | RVTY |
Revvity, Inc.
|
3,428,692 | $381,476,269 | |
| 6 | CRL |
Charles River Laboratories International, Inc.
|
1,648,450 | $373,851,972 | |
| 7 | IQV |
Iqvia Holdings Inc.
|
1,735,452 | $335,324,034 | |
| 8 | IDXX |
Idexx Laboratories Inc /De
|
608,902 | $320,550,366 |
All Filings in WAT
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $300,438,541 | 801,084 | Shares | Sole | 2026-08-11 | |
| 2026-03-31 | $242,622,422 | 814,716 | Shares | Sole | 2026-05-07 | |
| 2025-12-31 | $192,488,346 | 506,775 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $161,172,457 | 537,582 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $182,136,050 | 521,820 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $178,579,166 | 484,519 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $181,457,815 | 489,131 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $176,607,378 | 490,726 | Shares | Sole | 2024-11-07 | |
| 2024-06-30 | $130,061,954 | 448,304 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $127,486,610 | 370,353 | Shares | Sole | 2024-05-10 | |
| 2023-12-31 | $114,180,913 | 346,812 | Shares | Sole | 2024-02-07 | |
| 2023-09-30 | $89,904,133 | 327,866 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $84,661,630 | 317,632 | Shares | Sole | 2023-08-09 | |
| 2023-03-31 | $93,545,103 | 302,119 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $102,564,681 | 299,389 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $79,760,933 | 295,926 | Shares | Sole | 2022-11-10 | |
| 2022-06-30 | $96,823,894 | 292,537 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $91,263,040 | 294,027 | Shares | Defined | 2022-05-13 | |
| 2021-12-31 | $107,819,634 | 289,371 | Shares | Defined | 2022-02-09 | |
| 2021-09-30 | $103,196,457 | 288,823 | Shares | Defined | 2021-11-12 | |
| 2021-06-30 | $100,213,075 | 289,960 | Shares | Defined | 2021-08-12 | |
| 2021-03-31 | $76,650,026 | 269,733 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $66,889,502 | 270,348 | Shares | Defined | 2021-03-08 | |
| 2020-09-30 | $50,861,341 | 259,921 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $49,886,372 | 276,532 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $59,627,746 | 327,535 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||