Waters Corporation (WAT) — insider trading
Health Care · NYSE
Waters Corporation (WAT) has 17 reported SEC Form 4 insider transactions in our data, including 2 open-market purchases and 1 open-market sale among the most recent 17 (latest 2026-09-30).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | Knight Heather | Director | Grant / award / vesting | 57 | — | $0 | Form 4 |
| 2026-09-30 | Jiang Wei | Director | Grant / award / vesting | 57 | — | $0 | Form 4 |
| 2026-08-06 | KUEBLER CHRISTOPHER A | Director | Option exercise / conversion (derivative) | 3,626 | — | $0 | Form 4 |
| 2026-08-06 | KUEBLER CHRISTOPHER A | Director | Open-market sale | 3,626 | $397.94 | $1.44M | Form 4 |
| 2026-08-06 | KUEBLER CHRISTOPHER A | Director | Option exercise / conversion | 3,626 | $136.43 | $494.7K | Form 4 |
| 2026-06-30 | Jiang Wei | Director | Grant / award / vesting | 67 | — | $0 | Form 4 |
| 2026-06-30 | Knight Heather | Director | Grant / award / vesting | 63 | — | $0 | Form 4 |
| 2026-06-24 | Carpio Robert L III | Officer (SVP Waters Analytical Sciences) | Shares withheld for taxes / exercise cost | 189 | $369.18 | $69.8K | Form 4 |
| 2026-05-12 | Chaubal Amol | Officer (SVP & Chief Financial Officer) | Shares withheld for taxes / exercise cost | 239 | $352.21 | $84.2K | Form 4 |
| 2026-04-06 | Bennett Jianqing | Officer (SVP Waters Adv. Diagnostics) | Shares withheld for taxes / exercise cost | 302 | $304.09 | $91.8K | Form 4 |
| 2026-03-31 | Knight Heather | Director | Grant / award / vesting | 68 | — | $0 | Form 4 |
| 2026-03-31 | Jiang Wei | Director | Grant / award / vesting | 64 | — | $0 | Form 4 |
| 2026-03-16 | Jiang Wei | Director | Open-market purchase | 500 | $289.46 | $144.7K | Form 4 |
| 2026-03-06 | FEARON RICHARD H | Director | Open-market purchase | 1,000 | $306.34 | $306.3K | Form 4 |
| 2026-03-02 | Bennett Jianqing | Officer (SVP Waters Adv. Diagnostics) | Shares withheld for taxes / exercise cost | 410 | $307.23 | $126.0K | Form 4 |
| 2026-03-02 | Chaubal Amol | Officer (SVP & Chief Financial Officer) | Shares withheld for taxes / exercise cost | 709 | $307.23 | $217.8K | Form 4 |
| 2026-03-02 | Batra Udit | Director, Officer (President and CEO) | Shares withheld for taxes / exercise cost | 3,417 | $307.23 | $1.05M | Form 4 |
Ask the chat about WAT's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: Waters Corporation (WAT).
Last updated 2026-09-30 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.