WAT Institutional Ownership & Shareholders
WATERS CORP (WAT) is currently held by 1,188 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $36.65B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of WAT tracked by InsiderSet, reporting ownership valued at approximately $3.18B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $3.81B, representing an estimated gain of +19.86% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% of the total disclosed WAT value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Massachusetts Financial Services Co, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in WATERS CORP (WAT).
This page ranks the largest institutional WAT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
1,188
Total Reported Value
$36.65B
Largest Holder
Blackrock, Inc.
Largest Position
$3.18B
Insider Transactions (90d)
3
Latest Filing Quarter
Q2 2026
New Institutional Positions
48
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.05% | 8,484,939 | $3,182,191,259 | $3,814,234,629 | +$632,043,370 | +19.86% | |
| Massachusetts Financial Services Co | 0.80% | 4,625,035 | $2,526,510,262 | $2,079,091,984 | -$447,418,278 | -17.71% | |
| Vanguard Capital Management Llc | 0.05% | 6,415,552 | $2,406,088,623 | $2,883,983,091 | +$477,894,468 | +19.86% | |
| Vanguard Portfolio Management Llc | 0.08% | 4,740,524 | $1,777,886,121 | $2,131,007,754 | +$353,121,633 | +19.86% | |
| State Street Corp | 0.05% | 4,382,008 | $1,643,428,280 | $1,969,844,056 | +$326,415,776 | +19.86% | |
| T. Rowe Price Investment Management, Inc. | 0.94% | 3,817,779 | $1,431,820,000 | $1,716,206,194 | +$284,386,194 | +19.86% | |
| Invesco Ltd. | 0.10% | 3,494,267 | $1,310,489,770 | $1,570,777,845 | +$260,288,075 | +19.86% | |
| Geode Capital Management, Llc | 0.05% | 2,636,146 | $984,754,202 | $1,185,026,711 | +$200,272,509 | +20.34% | |
| Fundsmith | Terry Smith | 6.25% | 2,273,632 | $852,702,945 | $1,022,065,793 | +$169,362,848 | +19.86% |
| Price T Rowe Associates Inc | 0.08% | 2,177,958 | $816,823,000 | $979,057,460 | +$162,234,460 | +19.86% | |
| Alliancebernstein L.P. | 0.27% | 2,694,590 | $802,448,902 | $1,211,299,043 | +$408,850,141 | +50.95% | |
| Jpmorgan Chase & Co | 0.05% | 2,158,391 | $796,166,229 | $970,261,506 | +$174,095,277 | +21.87% | |
| Viking Global Investors | Ole Andreas Halvorsen | 1.78% | 1,662,140 | $623,368,986 | $747,181,794 | +$123,812,808 | +19.86% |
| Wellington Management Group Llp | 0.09% | 1,373,150 | $514,986,178 | $617,272,120 | +$102,285,942 | +19.86% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.82% | 1,335,108 | $500,718,821 | $600,171,099 | +$99,452,278 | +19.86% |
| Principal Financial Group Inc | 0.25% | 1,125,109 | $494,375,317 | $505,770,249 | +$11,394,932 | +2.30% | |
| Janus Henderson Group Plc | 0.24% | 1,638,772 | $488,027,923 | $736,677,177 | +$248,649,254 | +50.95% | |
| Schroder Investment Management Group | 0.34% | 1,264,226 | $474,135,320 | $568,307,514 | +$94,172,194 | +19.86% | |
| Mawer Investment Management Ltd. | 3.10% | 1,216,947 | $456,403,803 | $547,054,185 | +$90,650,382 | +19.86% | |
| Morgan Stanley | 0.02% | 1,097,302 | $411,533,113 | $493,270,168 | +$81,737,055 | +19.86% | |
| Northern Trust Corp | 0.05% | 1,032,726 | $387,313,559 | $464,241,319 | +$76,927,760 | +19.86% | |
| D. E. Shaw & Co., Inc. | 0.22% | 948,639 | $355,777,571 | $426,441,690 | +$70,664,119 | +19.86% | |
| Fmr Llc | 0.02% | 924,742 | $346,815,184 | $415,699,271 | +$68,884,087 | +19.86% | |
| Millennium Management Llc | 0.23% | 894,660 | $335,533,286 | $402,176,510 | +$66,643,224 | +19.86% | |
| Veritas Asset Management Llp | 5.75% | 851,624 | $319,393,065 | $382,830,537 | +$63,437,472 | +19.86% | |
| Holocene Advisors, Lp | 0.73% | 847,774 | $317,949,161 | $381,099,846 | +$63,150,685 | +19.86% | |
| Bank Of America Corp | 0.02% | 839,592 | $314,880,434 | $377,421,792 | +$62,541,358 | +19.86% | |
| Fundsmith Investment Services | Terry Smith | 6.95% | 837,764 | $314,195,011 | $376,600,051 | +$62,405,040 | +19.86% |
| Charles Schwab Investment Management Inc | 0.04% | 816,512 | $306,224,660 | $367,046,639 | +$60,821,979 | +19.86% | |
| Dimensional Fund Advisors Lp | 0.05% | 801,084 | $300,389,705 | $360,111,291 | +$59,721,586 | +19.88% | |
| Allspring Global Investments Holdings, Llc | 0.45% | 774,836 | $292,988,737 | $348,312,027 | +$55,323,290 | +18.88% | |
| Ubs Group Ag | 0.04% | 694,851 | $260,596,918 | $312,356,370 | +$51,759,452 | +19.86% | |
| Legal & General Group Plc | 0.05% | 690,148 | $258,833,111 | $310,242,230 | +$51,409,119 | +19.86% | |
| Voya Investment Management Llc | 0.21% | 653,967 | $244,687,088 | $293,977,786 | +$49,290,698 | +20.14% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.05% | 794,589 | $236,628,604 | $357,191,593 | +$120,562,989 | +50.95% | |
| Goldman Sachs Group Inc | 0.02% | 584,254 | $219,118,434 | $262,639,701 | +$43,521,267 | +19.86% | |
| Marshall Wace, Llp | 0.18% | 581,332 | $218,022,754 | $261,326,174 | +$43,303,420 | +19.86% | |
| Artisan Partners Limited Partnership | 0.34% | 560,753 | $210,304,687 | $252,075,296 | +$41,770,609 | +19.86% | |
| Vanguard Fiduciary Trust Co | 0.05% | 551,398 | $206,796,306 | $247,869,943 | +$41,073,637 | +19.86% | |
| Bank Of New York Mellon Corp | 0.03% | 503,214 | $188,725,344 | $226,209,789 | +$37,484,445 | +19.86% | |
| Focus Partners Wealth | 0.19% | 485,602 | $182,115,551 | $218,292,667 | +$36,177,116 | +19.86% | |
| Mackenzie Financial Corp | 0.20% | 410,723 | $180,467,579 | $184,632,310 | +$4,164,731 | +2.31% | |
| Findlay Park Partners Llp | 2.29% | 451,925 | $169,489,952 | $203,153,845 | +$33,663,893 | +19.86% | |
| Point72 Asset Management, L.P. | 0.25% | 444,225 | $166,602,144 | $199,692,464 | +$33,090,320 | +19.86% | |
| Ameriprise Financial Inc | 0.03% | 436,388 | $163,665,532 | $196,169,498 | +$32,503,966 | +19.86% | |
| Beck Mack & Oliver Llc | 3.17% | 434,149 | $162,823,241 | $195,163,000 | +$32,339,759 | +19.86% | |
| Deutsche Bank Ag\ | 0.05% | 416,850 | $156,335,424 | $187,386,581 | +$31,051,157 | +19.86% | |
| Hsbc Holdings Plc | 0.07% | 397,310 | $148,918,920 | $178,602,764 | +$29,683,844 | +19.93% | |
| Liontrust Investment Partners Llp | 1.98% | 358,979 | $134,631,484 | $161,371,830 | +$26,740,346 | +19.86% | |
| Capital Research Global Investors | 0.02% | 358,198 | $134,338,578 | $161,020,747 | +$26,682,169 | +19.86% |
Frequently asked questions about WAT
Who are the largest institutional holders of WAT?
The largest institutional holders of WAT reported in the latest SEC Form 13F filings include Blackrock, Inc., Massachusetts Financial Services Co, Vanguard Capital Management Llc, Vanguard Portfolio Management Llc, and State Street Corp. InsiderSet ranks institutional holders by their latest reported WAT position.
What is WAT institutional ownership?
This page tracks WAT positions reported by institutional investment managers through SEC Form 13F. WATERS CORP (WAT) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own WAT?
InsiderSet currently tracks 1,188 institutional managers reporting WAT holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of WAT shareholders.
How much WAT stock do institutions own?
Institutional investment managers disclosed approximately $36.65B in WAT holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was WAT institutional ownership last updated?
The latest WAT institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional WAT holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its WAT position after the reporting date.
Are institutions buying or selling WAT?
Institutional buying and selling can be analyzed by comparing WAT positions across consecutive 13F reporting periods. InsiderSet's WAT Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View WAT ownership changes.
How has WAT institutional ownership changed over time?
InsiderSet tracks WAT institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.