WAT insider trading — Waters Corp
Over the last 90 days, insiders at Waters Corp (WAT) made 0 open-market purchases worth $0 and 1 open-market sale worth $1.44M, making them net sellers by $1.44M. The largest sale was by Kuebler Christopher A (Director), who sold 3,626 shares for $1.44M on Aug 6, 2026.
Updated Oct 16, 2026.
Recent WAT insider transactions
Every Form 4 filed by Waters Corp officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 30, 2026 | Knight Heather | Director | A · Grant/award | Direct | 57 | — | — | Form 4 |
| Sep 30, 2026 | Jiang Wei | Director | A · Grant/award | Direct | 57 | — | — | Form 4 |
| Aug 6, 2026 | Kuebler Christopher A | Director | M · Option exercise | Direct | 3,626 | $136.43 | $495K | Form 4 |
| Aug 6, 2026 | Kuebler Christopher A | Director | S · Sale | Direct | 3,626 | $397.94 | $1.44M | Form 4 |
WAT insider trading FAQ
Are insiders buying WAT stock?
Not on the open market. In the last 90 days, Waters Corp insiders made no open-market purchases, and 1 open-market sale totaling $1.44M. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading WAT?
Recent sellers: Kuebler Christopher A.
Where does WAT insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
More stocks with insider activity
Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.