According to recent filings covering the 90 days ending January 10, 2026, the three most significant insider holders at Waters are Director Thomas P Salice (88.76K shares), Director Edward Conard (74.54K shares), President And Ceo Udit Batra (24.54K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Thomas P Salice | 88,759 | 05 Jan, 2022 | |
| Edward Conard | 74,542 | 05 Jan, 2023 | |
| Udit Batra | President And Ceo | 24,544 | 04 Mar, 2025 |
| Christopher A Kuebler | 17,785 | 05 Jan, 2026 | |
| Michael J Berendt | 16,449 | 16 Aug, 2021 | |
| Amol Chaubal | Svp & Chief Financial Officer | 5,224 | 14 May, 2025 |
| Flemming Ornskov | 4,935 | 05 Jan, 2026 | |
| Jianqing Bennett | Svp Ta Instruments Division | 4,916 | 08 Apr, 2025 |
| Mark Vergnano | 4,517 | 05 Jan, 2026 | |
| Jonathan M Pratt | Svp Waters Division | 3,887 | 11 Oct, 2023 |
| Michael F Silveira | Vp And Corporate Controller | 3,288 | 04 May, 2022 |
| Pearl S Huang | 3,253 | 05 Jan, 2026 | |
| Wei Jiang | 2,918 | 05 Jan, 2026 | |
| Linda Baddour | 2,876 | 05 Jan, 2026 | |
| Daniel J. Welch | Svp Global Operations | 2,847 | 25 Feb, 2022 |
| Robert L Iii Carpio | Svp And Waters Division | 2,656 | 26 Jun, 2025 |
| Gary E Hendrickson | 2,283 | 09 May, 2022 | |
| Richard H Fearon | 2,279 | 05 Jan, 2026 | |
| Keeley A Aleman | Svp General Counsel & Corp Sec | 1,995 | 02 Mar, 2022 |
| Daniel J. Brennan | 1,332 | 05 Jan, 2026 | |
| Belinda Hyde | Svp And Global Human Resources | 1,223 | 11 Jan, 2022 |
| Heather Knight | 1,126 | 05 Jan, 2026 | |
| John M Ballbach | 379 | 05 Jan, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Jan, 2026 | Linda Baddour | Common Stock | A | 307 | $0.00 | 2,876 | D | A |
| 02 Jan, 2026 | Richard H Fearon | Common Stock | A | 307 | $0.00 | 2,279 | D | A |
| 02 Jan, 2026 | Christopher A Kuebler | Common Stock | A | 307 | $0.00 | 17,785 | D | A |
| 02 Jan, 2026 | Mark Vergnano | Common Stock | A | 307 | $0.00 | 4,517 | D | A |
| 02 Jan, 2026 | Daniel J. Brennan | Common Stock | A | 307 | $0.00 | 1,332 | D | A |
| 02 Jan, 2026 | Flemming Ornskov | Common Stock | A | 307 | $0.00 | 4,935 | D | A |
| 02 Jan, 2026 | Pearl S Huang | Common Stock | A | 307 | $0.00 | 3,253 | D | A |
| 02 Jan, 2026 | Wei Jiang | Common Stock | A | 307 | $0.00 | 2,918 | D | A |
| 02 Jan, 2026 | Heather Knight | - | - | 1,126 | D | |||
| 02 Jan, 2026 | Heather Knight | Common Stock | A | 307 | $0.00 | 1,126 | D | A |
| 31 Dec, 2025 | Wei Jiang | Common Stock | A | 60 | $0.00 | 2,611 | D | A |
| 31 Dec, 2025 | Heather Knight | - | - | 819 | D | |||
| 31 Dec, 2025 | Heather Knight | Common Stock | A | 60 | $0.00 | 819 | D | A |
| 05 Nov, 2025 | Christopher A Kuebler | Common Stock | D | 1,318 | $371.97 | 17,478 | D | F |
| 05 Nov, 2025 | Christopher A Kuebler | Common Stock | A | 3,761 | $130.35 | 18,796 | D | M |
| 30 Sep, 2025 | Wei Jiang | Common Stock | A | 73 | $0.00 | 2,551 | D | A |
| 30 Sep, 2025 | Heather Knight | Common Stock | A | 78 | $0.00 | 759 | D | A |
| 30 Jun, 2025 | Wei Jiang | Common Stock | A | 68 | $0.00 | 2,479 | D | A |
| 30 Jun, 2025 | Heather Knight | Common Stock | A | 68 | $0.00 | 681 | D | A |
| 24 Jun, 2025 | Robert L Iii Carpio | Common Stock | D | 134 | $346.80 | 2,656 | D | F |