NYSE:WAT

Waters Stock Insider Trading

Healthcare > Medical - Diagnostics & Research

Buy WAT

*Your capital is at risk

$357.20

-1.05 (-0.293%)

At Close: Jun 23, 2026

Waters Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 77.32. In total, the insiders bought 12.68M and sold 21.78K WAT shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	77.32
● Buy	12.68M shares
● Sell	21.78K shares
78% Buy Activity Negligible or No Correlation
Sell Signal Low Confidence Mar 02, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory positive Insider Power Score of 77.32. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Jan 02, 2026 Buy	Common Stock A-Award	Baddour Linda Director	Director	307 Value: $117.3K
Jan 02, 2026 Buy	Common Stock A-Award	Brennan Daniel J. Director	Director	307 Value: $117.3K
Jan 02, 2026 Buy	Common Stock A-Award	Huang Pearl S Director	Director	307 Value: $117.3K
Jan 02, 2026 Buy	Stock Option (Right to Buy) A-Award	Kuebler Christopher A Director	Director	828 Value: $316.3K
Jan 02, 2026 Buy	Common Stock A-Award	Kuebler Christopher A Director	Director	307 Value: $117.3K
Jan 02, 2026 Buy	Common Stock A-Award	Vergnano Mark Director	Director	307 Value: $117.3K
Jan 02, 2026 Buy	Stock Option (Right to Buy) A-Award	Vergnano Mark Director	Director	828 Value: $316.3K
Jan 02, 2026 Buy	Stock Option (Right to Buy) A-Award	Huang Pearl S Director	Director	828 Value: $316.3K
Jan 02, 2026 Buy	Common Stock A-Award	Fearon Richard H Director	Director	307 Value: $117.3K
Jan 02, 2026 Buy	Stock Option (Right to Buy) A-Award	Fearon Richard H Director	Director	828 Value: $316.3K
Jan 02, 2026 Buy	Stock Option (Right to Buy) A-Award	Brennan Daniel J. Director	Director	828 Value: $316.3K
Jan 02, 2026 Buy	Stock Option (Right to Buy) A-Award	Ornskov Flemming Director	Director	828 Value: $316.3K
Jan 02, 2026 Buy	Common Stock A-Award	Jiang Wei Director	Director	307 Value: $117.3K
Dec 31, 2025 Buy	Common Stock A-Award	Knight Heather Director	Director	60 Value: $22.7K
Dec 31, 2025 Buy	Common Stock A-Award	Jiang Wei Director	Director	60 Value: $22.7K
Nov 05, 2025 Sell	Common Stock F-InKind	Kuebler Christopher A Director	Director	1 318 Value: $490.3K
Nov 05, 2025 Buy	Common Stock M-Exempt	Kuebler Christopher A Director	Director	3 761 Value: $490.2K
Nov 05, 2025 Buy	Stock Option (Right to Buy) M-Exempt	Kuebler Christopher A Director	Director	3 761 Value: $490.2K
Sep 30, 2025 Buy	Common Stock A-Award	Knight Heather Director	Director	78 Value: $23.3K
Sep 30, 2025 Buy	Common Stock A-Award	Jiang Wei Director	Director	73 Value: $21.9K
Sep 30, 2025 Buy	Common Stock A-Award	Jiang Wei Director	Director	73 Value: $21.9K
Sep 30, 2025 Buy	Common Stock A-Award	Knight Heather Director	Director	78 Value: $23.3K
Jun 30, 2025 Buy	Common Stock A-Award	Knight Heather Director	Director	68 Value: $23.9K
Jun 30, 2025 Buy	Common Stock A-Award	Jiang Wei Director	Director	68 Value: $23.9K
Jun 30, 2025 Buy	Common Stock A-Award	Jiang Wei Director	Director	68 Value: $23.9K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks