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WAT
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Waters Corporation

WAT · Healthcare · Waters Corporation provides analytical workflow solutions in Asia, the Americas, and Europe

Waters Corporation (WAT), in the Healthcare sector, has 11 disclosed filings on Paydirt over the trailing twelve months from 6 members of Congress and 3 corporate insiders: 4 purchases and 8 sales, 2 filed past the deadline (1 filing reported both). Filers took a median of 20 days from execution to disclosure, and the most recent trade was executed Aug 13 and filed Sep 1. The most active filer was Kevin Hern with 2 filings. Data as of Nov 8 2026.

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Filings, ttm
11
4 buys · 8 sells · 2 late
Traders, ttm
9
6 congress · 3 insiders
Volume, ttmiDollar value disclosed in the window
$2.0M
estimated for Congress, as filed for insiders
Median delay
20d
execution to disclosure
Last traded
Aug 13
Filed Sep 1
ADViAverage daily dollar volume
$393.7M
market data
Share price · 12M
$403 (+7.0%)
$421$352$283Nov 10 2025Apr 10Sep 8

Adjusted for splits and dividends.

Volume by month
$1.5M$725K$0Dec 2024Jun 2025Dec 2025Jun 2026Mar 2025 · buys $8KMay 2025 · sells $8KJun 2025 · buys $8KAug 2025 · buys $8KAug 2025 · sells $8KSep 2025 · buys $24KOct 2025 · buys $8KJan 2026 · buys $16KJan 2026 · sells $8KFeb 2026 · sells $8KMar 2026 · buys $451KMar 2026 · sells $16KApr 2026 · buys $8KApr 2026 · sells $8KAug 2026 · sells $1.5MSep 2026 · sells $8K
Buys $531K Sells $1.5M

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed · past 24 months
GC Gilbert Cisneros Representative 3 filings · 3 buys, 0 sales RB Rob Bresnahan Representative (Joint) 3 filings · 2 buys, 1 sale KH Kevin Hern Representative (Joint) 2 filings · 0 buys, 2 sales TK Thomas H. Kean Representative (Spouse) 2 filings · 0 buys, 2 sales DD Debbie Dingell Representative 1 filing · 0 buys, 1 sale RF Richard H Fearon Director 1 filing · 1 buy, 0 sales WJ Wei Jiang Director 1 filing · 1 buy, 0 sales JL Julia Letlow Representative 1 filing · 1 buy, 1 sale
All 11 filers CK Christopher A Kuebler Director 1 filing · 0 buys, 1 sale LM Lisa McClain Representative (Spouse) 1 filing · 1 buy, 1 sale TT Thomas H Tuberville Senator (Joint) 1 filing · 0 buys, 1 sale
Recent filings
Kevin HernSALE Representative (Joint) $8K
$1K–15K bracket
Exec Aug 13
Filed Sep 1 Christopher A KueblerSALE Director $1.4M
3,626 sh × $397.94
Exec Aug 6
Filed Aug 7 · 5:20 PM ET Thomas H TubervilleSALE Senator (Joint) $8K
$1K–15K bracket
Exec May 3 2024
Filed Aug 5 Thomas H. KeanSALE Representative $8K
$1K–15K bracket
Exec Mar 10
Filed Apr 13 Gilbert CisnerosPURCHASE Representative $8K
$1K–15K bracket
Exec Mar 18
Filed Apr 7 Thomas H. KeanSALE Representative $8K
$1K–15K bracket
Exec Feb 13
Filed Mar 18 Wei JiangPURCHASE Director $145K
500 sh × $289.46
Exec Mar 16
Filed Mar 18 · 4:37 PM ET Richard H FearonPURCHASE Director $306K
1,000 sh × $306.34
Exec Mar 6
Filed Mar 10 · 4:21 PM ET Kevin HernSALE Representative (Joint) $8K
$1K–15K bracket
Exec Feb 9
Filed Mar 6 Debbie DingellSALE Representative $8K
$1K–15K bracket
Exec Feb 10
Filed Feb 23 Julia LetlowPURCHASE Representative $16K
2 lots · $2K–30K bracket
Exec Oct 23 2024
Filed Jan 13 † Julia LetlowSALE Representative $8K
$1K–15K bracket
Exec Nov 19 2024
Filed Jan 13 † Gilbert CisnerosPURCHASE Representative $8K
$1K–15K bracket
Exec Sep 30 2025
Filed Oct 10 2025 Gilbert CisnerosPURCHASE Representative $24K
3 lots · $3K–45K bracket
Exec Aug 12 2025
Filed Sep 12 2025 Lisa McClainPURCHASE Representative (Spouse) $8K
$1K–15K bracket
Exec Jul 16 2025
Filed Aug 13 2025 Lisa McClainSALE Representative (Spouse) $8K
$1K–15K bracket
Exec Jul 22 2025
Filed Aug 13 2025 Rob BresnahanPURCHASE Representative $8K
$1K–15K bracket
Exec May 15 2025
Filed Jun 9 2025 Rob BresnahanSALE Representative $8K
$1K–15K bracket
Exec Apr 8 2025
Filed May 8 2025 Rob BresnahanPURCHASE Representative $8K
$1K–15K bracket
Exec Feb 25 2025
Filed Mar 27 2025