SEC Form 4 · Updated Daily
WAT
— WATERS CORPORATION OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| BERTHIAUME DOUGLAS A | Director | 2,144,365 | 2017-11-03 | G |
| CAPUTO ARTHUR G | Officer | 85,217 | 2016-12-06 | F |
| CONARD EDWARD | Director | 74,542 | 2023-01-03 | A |
| BEKENSTEIN JOSHUA | 10%+ Owner · Director | 60,349 | 2017-01-03 | A |
| OConnell Christopher J | Officer | 57,595 | 2020-07-31 | M |
| REED JOANN A | Reporting Owner | 41,285 | 2021-03-05 | M |
| Batra Udit | Director · Officer | 33,140 | 2026-03-02 | F |
| SALICE THOMAS P | Director | 31,985 | 2022-01-03 | A |
| MILLER WILLIAM J | Director | 25,849 | 2017-12-05 | M |
| KUEBLER CHRISTOPHER A | Director | 21,434 | 2026-08-06 | M |
| Buck Sherry | Director | 21,219 | 2020-10-30 | M |
| BERENDT MICHAEL J | Director | 16,449 | 2021-08-13 | S |
| Rae Elizabeth B | Officer | 13,072 | 2020-08-20 | M |
| Hendrickson Gary E | Director | 8,245 | 2022-05-05 | M |
| Chaubal Amol | Officer | 7,622.845 | 2026-05-12 | F |
| Bennett Jianqing | Officer | 6,532 | 2026-04-06 | F |
| Cassis Eugene G | Officer | 5,905 | 2018-02-14 | S |
| King Ian | Officer | 5,681 | 2021-03-01 | A |
| ORNELL JOHN A | Director | 5,550 | 2013-12-06 | A |
| Ornskov Flemming | Director | 5,271 | 2026-02-25 | A |
| TERRICCIANO DAVID | Officer | 4,596 | 2018-02-28 | M |
| Vergnano Mark | Director | 4,540 | 2026-02-25 | A |
| BEAUDOUIN MARK T | Officer | 4,090.05 | 2019-11-15 | S |
| GLIMCHER LAURIE H M.D. | Director | 4,067 | 2020-01-02 | A |
| Pratt Jonathan M | Officer | 3,887 | 2023-10-10 | F |
| Jiang Wei | Director | 3,630.16 | 2026-09-30 | A |
| Carpio Robert L III | Officer | 3,426 | 2026-06-24 | F |
| FEARON RICHARD H | Director | 3,302 | 2026-03-06 | P |
| SILVEIRA MICHAEL F | Officer | 3,288 | 2022-05-03 | F |
| Huang Pearl S | Director | 3,276.3 | 2026-02-25 | A |
| BADDOUR LINDA | Director | 2,899 | 2026-02-25 | A |
| Kim Francis | Officer | 2,857 | 2020-03-02 | A |
| Welch Daniel J. | Officer | 2,847 | 2022-02-23 | F |
| Harrington Michael C | Officer | 2,827 | 2021-03-01 | A |
| Khanna Rohit | Officer | 2,160 | 2017-12-29 | F |
| Brennan Daniel J. | Director | 1,355 | 2026-02-25 | A |
| Knight Heather | Director | 1,337.95 | 2026-09-30 | A |
| Carson Robert G | Officer | 1,329 | 2021-03-01 | A |
| Hyde Belinda | Officer | 1,223 | 2022-01-11 | F |
| Fraser Claire | Director | 489 | 2026-02-25 | A |
| BALLBACH JOHN M | Director | 379 | 2022-01-03 | A |
| Aleman Keeley A | Officer | 200.74 | 2022-03-09 | A |
| Kelly Terrence P | Officer | 100 | 2019-03-11 | S |
| CURRY WILLIAM | Officer | 92.01 | 2013-06-11 | D |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-30 | Jiang Wei | Grant / award | 57.41 | $0.00 | 3,630.16 |
| 2026-09-30 | Knight Heather | Grant / award | 57.41 | $0.00 | 1,337.95 |
| 2026-08-06 | KUEBLER CHRISTOPHER A | Option exercise (derivative) | 3,626 | $0.00 | 0 |
| 2026-08-06 | KUEBLER CHRISTOPHER A | Open-market sale | 3,626 | $397.94 | 17,808 |
| 2026-08-06 | KUEBLER CHRISTOPHER A | Option exercise | 3,626 | $136.43 | 21,434 |
| 2026-06-30 | Jiang Wei | Grant / award | 67.42 | $0.00 | 3,572.75 |
| 2026-06-30 | Knight Heather | Grant / award | 63.03 | $0.00 | 1,280.54 |
| 2026-06-24 | Carpio Robert L III | Tax withholding | 189 | $369.18 | 3,426 |
| 2026-05-12 | Chaubal Amol | Tax withholding | 239 | $352.21 | 7,622.845 |
| 2026-04-06 | Bennett Jianqing | Tax withholding | 302 | $304.09 | 6,532 |
| 2026-03-31 | Knight Heather | Grant / award | 68.44 | $0.00 | 1,217.51 |
| 2026-03-31 | Jiang Wei | Grant / award | 64.06 | $0.00 | 3,505.33 |
| 2026-03-16 | Jiang Wei | Open-market buy | 500 | $289.46 | 3,441.27 |
| 2026-03-06 | FEARON RICHARD H | Open-market buy | 1,000 | $306.34 | 3,302 |
| 2026-03-02 | Bennett Jianqing | Tax withholding | 410 | $307.23 | 6,834 |
| 2026-03-02 | Chaubal Amol | Tax withholding | 709 | $307.23 | 7,796.393 |
| 2026-03-02 | Batra Udit | Tax withholding | 3,417 | $307.23 | 33,140 |
| 2026-02-25 | Ornskov Flemming | Grant / award (derivative) | 57 | $0.00 | 57 |
| 2026-02-25 | Ornskov Flemming | Grant / award | 336 | $0.00 | 5,271 |
| 2026-02-25 | BADDOUR LINDA | Grant / award (derivative) | 57 | $0.00 | 57 |
| 2026-02-25 | BADDOUR LINDA | Grant / award | 23 | $0.00 | 2,899 |
| 2026-02-25 | Brennan Daniel J. | Grant / award (derivative) | 57 | $0.00 | 57 |
| 2026-02-25 | Brennan Daniel J. | Grant / award | 23 | $0.00 | 1,355 |
| 2026-02-25 | FEARON RICHARD H | Grant / award (derivative) | 57 | $0.00 | 57 |
| 2026-02-25 | FEARON RICHARD H | Grant / award | 23 | $0.00 | 2,302 |
| 2026-02-25 | Fraser Claire | Grant / award (derivative) | 877 | $0.00 | 877 |
| 2026-02-25 | Fraser Claire | Grant / award | 358 | $0.00 | 489 |
| 2026-02-25 | Huang Pearl S | Grant / award (derivative) | 57 | $0.00 | 57 |
| 2026-02-25 | Huang Pearl S | Grant / award | 23 | $0.00 | 3,276.3 |
| 2026-02-25 | Jiang Wei | Grant / award (derivative) | 57 | $0.00 | 57 |
| 2026-02-25 | Jiang Wei | Grant / award | 23 | $0.00 | 2,941.27 |
| 2026-02-25 | Knight Heather | Grant / award (derivative) | 57 | $0.00 | 57 |
| 2026-02-25 | Knight Heather | Grant / award | 23 | $0.00 | 1,149.07 |
| 2026-02-25 | KUEBLER CHRISTOPHER A | Grant / award (derivative) | 57 | $0.00 | 57 |
| 2026-02-25 | KUEBLER CHRISTOPHER A | Grant / award | 23 | $0.00 | 17,808 |
| 2026-02-25 | Vergnano Mark | Grant / award (derivative) | 57 | $0.00 | 57 |
| 2026-02-25 | Vergnano Mark | Grant / award | 23 | $0.00 | 4,540 |
| 2026-02-25 | Batra Udit | Grant / award (derivative) | 25,283 | $0.00 | 25,283 |
| 2026-02-25 | Batra Udit | Grant / award | 5,165 | $0.00 | 36,557 |
| 2026-02-25 | Chaubal Amol | Grant / award (derivative) | 7,125 | $0.00 | 7,125 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.