Waters Corporation (WAT) Shareholders & Insider Trades
Waters shareholders at a glance
The largest holder of Waters stock is Vanguard Capital Management LLC, with 6.4 million shares (6.53% of the company), worth about $2.66 billion as of September 25, 2026. The 10 largest holders together own 42.2%.
In Q2 2026, 1,212 institutional holdings reports listed shares worth $38.00 billion.
Insiders reported 53 transactions in the last two years: no sales and 2 purchases. The newest one on file is from March 31, 2026 (Jiang Wei, Director).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through March 31, 2026.
Waters Corporation
Shareholders Summary
2026Q2
Ownership by Type
Geographic Distribution
Largest Waters shareholders
| Holder | Shares | % of company | Value |
|---|---|---|---|
| Vanguard Capital Management LLC | 6.4 million | 6.53% | $2.7B |
| BlackRock Advisors LLC | 6.4 million | 6.49% | $2.6B |
| Vanguard Portfolio Management LLC | 4.7 million | 4.83% | $2.0B |
| MFS Investment Management Canada Ltd. | 4.6 million | 4.71% | $1.9B |
| State Street Corporation | 4.4 million | 4.46% | $1.8B |
| T. Rowe Price Investment Management, Inc. | 3.8 million | 3.89% | $1.6B |
| Invesco Advisers, Inc. | 3.5 million | 3.56% | $1.4B |
| AllianceBernstein LP | 2.7 million | 2.74% | $1.1B |
| Geode Capital Management LLC | 2.6 million | 2.68% | $1.1B |
| Fundsmith LLP | 2.3 million | 2.31% | $943.0M |
As of September 25, 2026.
Waters institutional holdings by quarter
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 1,212 | – | $38.0B |
| Q1 2026 | 1,203 | 94.9 million | $29.1B |
| Q4 2025 | 834 | 58.3 million | $22.1B |
| Q3 2025 | 790 | 57.6 million | $17.3B |
| Q2 2025 | 789 | 58.8 million | $20.5B |
| Q1 2025 | 785 | 58.0 million | $21.4B |
| Q4 2024 | 785 | 57.4 million | $21.2B |
| Q3 2024 | 725 | 57.0 million | $20.5B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
Waters insider trades
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Jiang Wei | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Knight Heather | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Jiang Wei | Mar 16, 2026 | Director | Purchase at price 289.46 per share. | $144,730 |
| Fearon Richard H | Mar 6, 2026 | Director | Purchase at price 306.34 per share. | $306,340 |
| Ornskov Flemming | Feb 25, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Chaubal Amol | Feb 25, 2026 | Chief Financial Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Batra Udit | Feb 25, 2026 | Chief Executive Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Fraser Claire | Feb 25, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Vergnano Mark P | Feb 25, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Brennan Daniel J | Feb 25, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Baddour Linda | Feb 25, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Kuebler Christopher A | Feb 25, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
Newest 12 of 53 insider transactions in the last two years.
Questions and answers
Who owns the most Waters stock?
Vanguard Capital Management LLC, with 6.53% of the company (as of September 25, 2026). Next: BlackRock Advisors LLC (6.49%) and Vanguard Portfolio Management LLC (4.83%).
How many institutions own Waters stock?
1,212 institutional holdings reports listed Waters shares in Q2 2026 worth $38.00 billion.
Are Waters insiders buying or selling the stock?
In the last two years insiders reported no sales and 2 purchases (53 transactions in all); the newest on file is from March 31, 2026.
