Waters Corporation
A maker of analytical instruments that help scientists separate, identify, and measure chemicals, Waters Corporation builds liquid chromatography and mass spectrometry systems (like ACQUITY UPLC and Xevo) used by pharmaceutical, industrial, and academic labs, plus thermal analysis tools under its TA Instruments brand. Founded in 1958 by James Waters, the company began as a five-person "research boutique" in the basement of the Framingham, Massachusetts police station, building custom instruments like nerve gas detectors before becoming a leader in chromatography.
Granted 41.7K
Granted 8.7K · Sold 4.0K
Granted 7.5K
Granted 5.6K
Granted 1.3K
Granted 330
Granted 653
Granted 1.5K · Bought 500
Granted 3.8K
Granted 983 · Bought 2.0K
Granted 1.2K
Granted 983 · Sold 500
Granted 983
Granted 1.2K
Granted 358
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Batra UditPresident and CEO, Director · 11 transactions | +288.8% | 33.1K | 41.7K | — | — |
| Kuebler Christopher ADirector · 8 transactions | -3.1% | 17.8K | 8.7K | — | 4.0K |
| Chaubal AmolSVP & Chief Financial Officer · 10 transactions | +249.7% | 7.6K | 7.5K | — | — |
| Bennett JianqingSVP Waters Adv. Diagnostics · 10 transactions | +119.6% | 6.5K | 5.6K | — | — |
| Pratt Jonathan MSVP Waters Division · 1 transaction | -1.5% | 6.0Kas of Oct 2023 | — | — | — |
| Ornskov FlemmingDirector · 4 transactions | +32.6% | 5.3K | 1.3K | — | — |
| Vergnano MarkDirector · 2 transactions | — | 4.5K | 330 | — | — |
| Vergnano Mark PDirector · 2 transactions | +18.4% | 4.2Kas of Jan 2025 | 653 | — | — |
| Jiang WeiDirector · 13 transactions | +357.6% | 3.5K | 1.5K | 500 | — |
| Carpio Robert L IIISVP Waters Analytical Sciences · 6 transactions | — | 3.4K | 3.8K | — | — |
| Fearon Richard HDirector · 6 transactions | +19323.5% | 3.3K | 983 | 2.0K | — |
| Huang Pearl SDirector · 7 transactions | +209.7% | 3.3K | 1.2K | — | — |
| Baddour LindaDirector · 5 transactions | +20% | 2.9K | 983 | — | 500 |
| Brennan Daniel J.Director · 4 transactions | +264.2% | 1.4K | 983 | — | — |
| Knight HeatherDirector · 11 transactions | — | 1.2K | 1.2K | — | — |
| Fraser ClaireDirector · 1 transaction | — | 489 | 358 | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -2.0K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.