Waters's top three insider shareholders as of September 29, 2026 are Edward Conard (Director, 74.54K shares), Udit Batra (President And Ceo, 33.14K shares), Thomas P Salice (Director, 31.98K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Edward Conard | Director | 74,542 | 0 | 74,542 | 34.6% | 05 Jan, 2023 |
| 2 | Udit Batra | President And Ceo | 33,140 | 0 | 33,140 | 15.4% | 03 Mar, 2026 |
| 3 | Thomas P Salice | Director | 31,985 | 0 | 31,985 | 14.9% | 05 Jan, 2022 |
| 4 | Christopher A Kuebler | Director | 17,808 | 0 | 17,808 | 8.3% | 07 Aug, 2026 |
| 5 | Amol Chaubal | Svp Chief Financial Officer | 7,623 | 0 | 7,623 | 3.5% | 14 May, 2026 |
| 6 | Jianqing Bennett | Svp Waters Adv. Diagnostics | 6,532 | 0 | 6,532 | 3.0% | 07 Apr, 2026 |
| 7 | Flemming Ornskov | Director | 5,271 | 0 | 5,271 | 2.4% | 27 Feb, 2026 |
| 8 | Mark Vergnano | Director | 4,540 | 0 | 4,540 | 2.1% | 27 Feb, 2026 |
| 9 | Jonathan M Pratt | Svp Waters Division | 3,887 | 0 | 3,887 | 1.8% | 11 Oct, 2023 |
| 10 | Wei Jiang | Director | 3,573 | 0 | 3,573 | 1.7% | 02 Jul, 2026 |
| 11 | Robert L Iii Carpio | Svp Waters Analytical Sciences | 3,426 | 0 | 3,426 | 1.6% | 25 Jun, 2026 |
| 12 | Richard H Fearon | Director | 3,302 | 0 | 3,302 | 1.5% | 10 Mar, 2026 |
| 13 | Michael F Silveira | Vp, Corporate Controller | 3,288 | 0 | 3,288 | 1.5% | 04 May, 2022 |
| 14 | Pearl S Huang | Director | 3,276 | 0 | 3,276 | 1.5% | 27 Feb, 2026 |
| 15 | Linda Baddour | Director | 2,899 | 0 | 2,899 | 1.3% | 27 Feb, 2026 |
| 16 | Daniel J. Welch | Svp Global Operations | 2,847 | 0 | 2,847 | 1.3% | 25 Feb, 2022 |
| 17 | Gary E Hendrickson | Director | 2,283 | 0 | 2,283 | 1.1% | 09 May, 2022 |
| 18 | Daniel J. Brennan | Director | 1,355 | 0 | 1,355 | 0.6% | 27 Feb, 2026 |
| 19 | Heather Knight | Director | 1,281 | 0 | 1,281 | 0.6% | 02 Jul, 2026 |
| 20 | Belinda Hyde | Svp, Global Human Resources | 1,223 | 0 | 1,223 | 0.6% | 11 Jan, 2022 |
| 21 | Claire Fraser | Director | 489 | 0 | 489 | 0.2% | 27 Feb, 2026 |
| 22 | John M Ballbach | Director | 379 | 0 | 379 | 0.2% | 05 Jan, 2022 |
| 23 | Keeley A Aleman | Svp General Counsel Corp Sec | 0 | 201 | 201 | 0.1% | 10 Mar, 2022 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 06 Aug, 2026 | Christopher A Kuebler | Director | Acquired M | 3,626 | $136.43 | $494.70K | 21,434 | Direct |
| 06 Aug, 2026 | Christopher A Kuebler | Director | Disposed S | 3,626 | $397.94 | $1.44Mn | 17,808 | Direct |
| 06 Aug, 2026 | Christopher A Kuebler | Director | Disposed M | 3,626 | $0.00 | $0 | 0 | Direct |
| 30 Jun, 2026 | Wei Jiang | Director | Acquired A | 67 | $0.00 | $0 | 3,573 | Direct |
| 30 Jun, 2026 | Heather Knight | Director | Acquired A | 63 | $0.00 | $0 | 1,281 | Direct |
| 24 Jun, 2026 | Robert L Iii Carpio | Svp Waters Analytical Sciences | Disposed F | 189 | $369.18 | $69.78K | 3,426 | Direct |
| 12 May, 2026 | Amol Chaubal | Svp Chief Financial Officer | Disposed F | 239 | $352.21 | $84.18K | 7,623 | Direct |
| 06 Apr, 2026 | Jianqing Bennett | Svp Waters Adv. Diagnostics | Disposed F | 302 | $304.09 | $91.84K | 6,532 | Direct |
| 31 Mar, 2026 | Heather Knight | Director | Acquired A | 68 | $0.00 | $0 | 1,218 | Direct |
| 31 Mar, 2026 | Wei Jiang | Director | Acquired A | 64 | $0.00 | $0 | 3,505 | Direct |
| 16 Mar, 2026 | Wei Jiang | Director | Acquired P | 500 | $289.46 | $144.73K | 3,441 | Direct |
| 06 Mar, 2026 | Richard H Fearon | Director | Acquired P | 1,000 | $306.34 | $306.34K | 3,302 | Direct |
| 02 Mar, 2026 | Jianqing Bennett | Svp Waters Adv. Diagnostics | Disposed F | 410 | $307.23 | $125.96K | 6,834 | Direct |
| 02 Mar, 2026 | Udit Batra | President And Ceo | Disposed F | 3,417 | $307.23 | $1.05Mn | 33,140 | Direct |
| 02 Mar, 2026 | Amol Chaubal | Svp Chief Financial Officer | Disposed F | 709 | $307.23 | $217.83K | 7,796 | Direct |
| 25 Feb, 2026 | Christopher A Kuebler | Director | Acquired A | 23 | $0.00 | $0 | 17,808 | Direct |
| 25 Feb, 2026 | Richard H Fearon | Director | Acquired A | 23 | $0.00 | $0 | 2,302 | Direct |
| 25 Feb, 2026 | Linda Baddour | Director | Acquired A | 23 | $0.00 | $0 | 2,899 | Direct |
| 25 Feb, 2026 | Claire Fraser | Director | Acquired A | 358 | $0.00 | $0 | 489 | Direct |
| 25 Feb, 2026 | Mark Vergnano | Director | Acquired A | 23 | $0.00 | $0 | 4,540 | Direct |