WATERS CORP /DE/ (WAT)
Data as of , from SEC Form 4 filings.
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- Christopher A. Kuebler - DirectorOpen-market sale$1.44M
Wei Jiang - DirectorOpen-market purchase$145K
About WATERS CORP /DE/ (WAT)
The SEC lists WATERS CORP /DE/ under CIK 0001000697, in laboratory analytical instruments. We track it alongside the rest of the Health Care sector.
WAT Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 1 | 3,626 | $1.44M |
| Grant or award | 2 | 114.82 | |
| Option exercise | 2 | 7,252 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
WAT insider transactions (Form 4)
4155 Form 4 filings on record, the earliest from Oct 2, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jianqing Bennett - Officer | Grant or award | Common Stock | 1,385 footnote F1 | $0.00 | - | |
| Jianqing Bennett - Officer | Tax withholding / forfeiture | Common Stock | 43 footnote F2 | $376.89 | $16K | |
| ||||||
| Amol Chaubal - Officer | Grant or award | Common Stock | 1,884 footnote F1 | $0.00 | - | |
| Amol Chaubal - Officer | Tax withholding / forfeiture | Common Stock | 58 footnote F2 | $376.89 | $22K | |
| ||||||
 Udit Batra - Officer | Grant or award | Common Stock | 7,066 footnote F1 | $0.00 | - | |
| Udit Batra - Officer | Tax withholding / forfeiture | Common Stock | 218 footnote F2 | $376.89 | $82K | |
| ||||||
| Mark Vergnano - Director | Grant or award | Common Stock | 307 | $0.00 | - | |
| Mark Vergnano - Director | Grant or award | Stock Option (Right to Buy) | 828 | $0.00 | - | |
| Christopher A. Kuebler - Director | Grant or award | Common Stock | 307 | $0.00 | - | |
| Christopher A. Kuebler - Director | Grant or award | Stock Option (Right to Buy) | 828 | $0.00 | - | |
| Pearl S. Huang - Director | Grant or award | Common Stock | 307 | $0.00 | - | |
| Pearl S. Huang - Director | Grant or award | Stock Option (Right to Buy) | 828 | $0.00 | - | |
| Richard H. Fearon - Director | Grant or award | Common Stock | 307 | $0.00 | - | |
| Richard H. Fearon - Director | Grant or award | Stock Option (Right to Buy) | 828 | $0.00 | - | |
| Daniel J. Brennan - Director | Grant or award | Common Stock | 307 | $0.00 | - | |
| Daniel J. Brennan - Director | Grant or award | Stock Option (Right to Buy) | 828 | $0.00 | - | |
| Linda Baddour - Director | Grant or award | Common Stock | 307 | $0.00 | - | |
| Linda Baddour - Director | Grant or award | Stock Option (Right to Buy) | 828 | $0.00 | - | |
 Flemming Ornskov - Director | Grant or award | Common Stock | 307 | $0.00 | - | |
| Flemming Ornskov - Director | Grant or award | Stock Option (Right to Buy) | 828 | $0.00 | - | |
| Wei Jiang - Director | Grant or award | Common Stock | 59.79 | $0.00 | - | |
| Wei Jiang - Director | Grant or award | Common Stock | 307 | $0.00 | - | |
| Wei Jiang - Director | Grant or award | Stock Option (Right to Buy) | 828 | $0.00 | - | |
 Heather Knight - Director | Grant or award | Common Stock | 59.79 | $0.00 | - | |
| Heather Knight - Director | Grant or award | Common Stock | 307 | $0.00 | - | |
| Heather Knight - Director | Grant or award | Stock Option (Right to Buy) | 828 | $0.00 | - | |
| Christopher A. Kuebler - Director | Option exercise | Common Stock | 3,761 | $130.35 | $490K | |
| Christopher A. Kuebler - Director | Option exercise | Stock Option (Right to Buy) | 3,761 | $0.00 | - | |
| Christopher A. Kuebler - Director | Tax withholding / forfeiture | Common Stock | 1,318 | $371.97 | $490K | |
| Heather Knight - Director | Grant or award | Common Stock | 77.88 | $0.00 | - | |
| Wei Jiang - Director | Grant or award | Common Stock | 72.91 | $0.00 | - | |
| Heather Knight - Director | Grant or award | Common Stock | 68.35 | $0.00 | - | |
| Wei Jiang - Director | Grant or award | Common Stock | 68.35 | $0.00 | - | |
| Robert L. Carpio III - Officer | Tax withholding / forfeiture | Common Stock | 134 | $346.80 | $46K | |
| Amol Chaubal - Officer | Tax withholding / forfeiture | Common Stock | 239 | $366.67 | $88K | |
| Jianqing Bennett - Officer | Tax withholding / forfeiture | Common Stock | 303 | $325.80 | $99K | |
| Heather Knight - Director | Grant or award | Common Stock | 52.95 | $0.00 | - | |
| Wei Jiang - Director | Grant or award | Common Stock | 52.95 | $0.00 | - | |
| Heather Knight - Director | Grant or award | Common Stock | 32.65 | $0.00 | - | |
| Wei Jiang - Director | Grant or award | Common Stock | 62.97 | $0.00 | - | |
| Pearl S. Huang - Director | Grant or award | Common Stock | 75.25 | $0.00 | - | |
Item 5.02, 8.01
Item 2.02, 9.01
Item 5.07
Item 2.02, 9.01
Recent WAT Form 144 notices of proposed sale
1An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| KUEBLER CHRISTOPHER A | Director | 3,626 | $1.44M | View on EDGAR |
Stock trades in WAT disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 Kevin HernRepublican, OK-01 | Sale |
WAT insider trading FAQ
What is the latest insider trade for WAT?
WATERS CORP /DE/ (WAT) had 3 insider filings in the last 90 days, with the most recent on 2026-10-02. The full record for WAT runs to 55 Form 4 filings, the earliest from 2024-10-02. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying WAT stock?
No insider purchases of WAT were filed in the last 90 days. 2 purchases are on record for this company.
How many insiders are selling WAT stock?
1 insider sale of WAT was filed in the last 90 days, totaling $1.44M.
Where can I see WAT SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects WAT Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Heather Knight view on EDGAR
- - Wei Jiang view on EDGAR
- - Christopher A. Kuebler view on EDGAR
- - Heather Knight view on EDGAR
- - Wei Jiang view on EDGAR
- - Robert L. Carpio III view on EDGAR
- - Amol Chaubal view on EDGAR
- - Jianqing Bennett view on EDGAR
- - Wei Jiang view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Health Care
- Where WAT's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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