WAT

Waters Corporation$301.34+1.74 (+0.58%)

Prev Close$299.79·MCap$19.95B·P/E27.91·Vol703.0K·Yield—

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Buys (12M)

$451.1K

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Sells (12M)

$635.1K

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Net Activity

Net Seller

$184.0K

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at Waters Corporation (WAT) has been mixed between buying and selling, with 2 insider purchases totaling $451.1K and 4 insider sales totaling $635.1K. The most recent insider transaction was by Jiang Wei (director), who purchased $144.7K worth of shares on Mar 18, 2026. Waters Corporation operates in the Healthcare sector, within the Medical - Diagnostics & Research industry, with a market cap of $19.95B.

WAT Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Mar 18, 2026	Jiang Wei	director	Buy	500	$289.46	$144.7K	3,441
Mar 10, 2026	FEARON RICHARD H	director	Buy	1,000	$306.34	$306.3K	3,302+43%
Feb 4, 2026	Batra Udit	President and CEO	Sell	218	$376.89	$82.2K	0
Feb 4, 2026	Bennett Jianqing	SVP TA Instruments Division	Sell	43	$376.89	$16.2K	0
Nov 5, 2025	KUEBLER CHRISTOPHER A	Director	Sell	1,318	$371.97	$490.3K	0
Jun 24, 2025	Carpio Robert L III	SVP, Waters Division	Sell	134	$346.80	$46.5K	0
Mar 1, 2025	Bennett Jianqing	SVP TA Instruments Division	Sell	786	$371.79	$292.2K	0
Mar 1, 2025	Batra Udit	President and CEO	Sell	4,976	$371.79	$1.85M	0
May 29, 2024	FEARON RICHARD H	Director	Buy	1,000	$332.90	$332.9K	1,653+153%
May 16, 2024	KUEBLER CHRISTOPHER A	Director	Sell	4,000	$361.64	$1.45M	14,716
Mar 14, 2024	BADDOUR LINDA	Director	Sell	500	$355.54	$177.8K	2,250
Aug 7, 2023	KUEBLER CHRISTOPHER A	Director	Sell	4,000	$291.48	$1.17M	14,382
Mar 1, 2023	VERGNANO MARK P	Director	Buy	3,185	$313.32	$997.9K	3,557+856%
Dec 1, 2022	CONARD EDWARD	Director	Sell	1,059	$334.70	$354.4K	74,224
May 23, 2022	KUEBLER CHRISTOPHER A	Director	Sell	4,000	$328.78	$1.32M	14,064
Dec 3, 2021	CONARD EDWARD	Director	Sell	4,000	$336.01	$1.34M	70,982
Aug 19, 2021	KUEBLER CHRISTOPHER A	Director	Sell	3,000	$405.62	$1.22M	13,763
Aug 17, 2021	BADDOUR LINDA	Director	Sell	1,260	$408.99	$515.3K	1,797-41%
Aug 16, 2021	BERENDT MICHAEL J	Director	Sell	806	$403.12	$324.9K	16,449
Aug 13, 2021	BERENDT MICHAEL J	Director	Sell	4,000	$398.43	$1.59M	17,255
Aug 6, 2021	SALICE THOMAS P	Director	Sell	8,500	$395.00	$3.36M	56,774
May 25, 2021	BERENDT MICHAEL J	Director	Sell	1,161	$318.24	$369.5K	21,255
May 14, 2021	BADDOUR LINDA	Director	Sell	1,249	$314.99	$393.4K	1,797-41%
Mar 8, 2021	REED JOANN A	Director	Sell	1,600	$263.31	$421.3K	39,685

WAT Insider Buying Activity

The following table shows recent insider purchases of Waters Corporation (WAT) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Mar 18, 2026	Jiang Wei	director	Buy	500	$289.46	$144.7K	3,441
Mar 10, 2026	FEARON RICHARD H	director	Buy	1,000	$306.34	$306.3K	3,302+43%
May 29, 2024	FEARON RICHARD H	Director	Buy	1,000	$332.90	$332.9K	1,653+153%
Mar 1, 2023	VERGNANO MARK P	Director	Buy	3,185	$313.32	$997.9K	3,557+856%

WAT Insider Selling Activity

The following table shows recent insider sales of Waters Corporation (WAT) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Feb 4, 2026	Batra Udit	President and CEO	Sell	218	$376.89	$82.2K	0
Feb 4, 2026	Bennett Jianqing	SVP TA Instruments Division	Sell	43	$376.89	$16.2K	0
Nov 5, 2025	KUEBLER CHRISTOPHER A	Director	Sell	1,318	$371.97	$490.3K	0
Jun 24, 2025	Carpio Robert L III	SVP, Waters Division	Sell	134	$346.80	$46.5K	0
Mar 1, 2025	Bennett Jianqing	SVP TA Instruments Division	Sell	786	$371.79	$292.2K	0
Mar 1, 2025	Batra Udit	President and CEO	Sell	4,976	$371.79	$1.85M	0
May 16, 2024	KUEBLER CHRISTOPHER A	Director	Sell	4,000	$361.64	$1.45M	14,716
Mar 14, 2024	BADDOUR LINDA	Director	Sell	500	$355.54	$177.8K	2,250
Aug 7, 2023	KUEBLER CHRISTOPHER A	Director	Sell	4,000	$291.48	$1.17M	14,382
Dec 1, 2022	CONARD EDWARD	Director	Sell	1,059	$334.70	$354.4K	74,224
May 23, 2022	KUEBLER CHRISTOPHER A	Director	Sell	4,000	$328.78	$1.32M	14,064
Dec 3, 2021	CONARD EDWARD	Director	Sell	4,000	$336.01	$1.34M	70,982
Aug 19, 2021	KUEBLER CHRISTOPHER A	Director	Sell	3,000	$405.62	$1.22M	13,763
Aug 17, 2021	BADDOUR LINDA	Director	Sell	1,260	$408.99	$515.3K	1,797-41%
Aug 16, 2021	BERENDT MICHAEL J	Director	Sell	806	$403.12	$324.9K	16,449
Aug 13, 2021	BERENDT MICHAEL J	Director	Sell	4,000	$398.43	$1.59M	17,255
Aug 6, 2021	SALICE THOMAS P	Director	Sell	8,500	$395.00	$3.36M	56,774
May 25, 2021	BERENDT MICHAEL J	Director	Sell	1,161	$318.24	$369.5K	21,255
May 14, 2021	BADDOUR LINDA	Director	Sell	1,249	$314.99	$393.4K	1,797-41%
Mar 8, 2021	REED JOANN A	Director	Sell	1,600	$263.31	$421.3K	39,685