Institutional shares held 54.8 Million
81.5K calls
36.7K puts
Total value of holdings $19.1B
$28.3M calls
$12.8M puts
Market Cap $20.8B
59,875,900 Shares Out.
Institutional ownership 91.52%
# of Institutions 819


Latest Institutional Activity in WAT

Top Purchases

Q1 2025
Oversea Chinese Banking Corp LTD Shares Held: 706K ($245M)
Q1 2025
Massachusetts Financial Services CO Shares Held: 2.07M ($719M)
Q1 2025
Robeco Institutional Asset Management B.V. Shares Held: 443K ($154M)
Q1 2025
Sg Americas Securities, LLC Shares Held: 28.2K ($9.8M)
Q1 2025
Deka Bank Deutsche Girozentrale Shares Held: 76.2K ($26.5M)

Top Sells

Q1 2025
Gamma Investing LLC Shares Held: 1.8K ($625K)
Q1 2025
Impax Asset Management Group PLC Shares Held: 425K ($148M)
Q1 2025
Boston Trust Walden Corp Shares Held: 288K ($100M)
Q1 2025
Robeco Schweiz Ag Shares Held: 143K ($49.6M)
Q1 2025
Bessemer Group Inc Shares Held: 5.94K ($2.07M)

About WAT

Waters Corporation, a specialty measurement company, provides analytical workflow solutions in Asia, the Americas, and Europe. It operates through two segments, Waters and TA. The company designs, manufactures, sells, and services high and ultra-performance liquid chromatography, as well as mass spectrometry (MS) technology systems and support products, including chromatography columns, other consumable products, and post-warranty service plans. It also designs, manufactures, sells, and services thermal analysis, rheometry, and calorimetry instruments; and develops and supplies software-based products that interface with its instruments, as well as other manufacturers' instruments. Its MS technology instruments are used in drug discovery and development comprising clinical trial testing, the analysis of proteins in disease processes, nutritional safety analysis, and environmental testing. The company offers thermal analysis, rheometry, and calorimetry instruments for use in predicting the suitability and stability of fine chemicals, pharmaceuticals, water, polymers, metals, and viscous liquids for various industrial, consumer good, and healthcare products, as well as for life science research. Its products are used by life science, pharmaceutical, biochemical, industrial, nutritional safety, environmental, academic, and governmental customers working in research and development, quality assurance, and other laboratory applications. Waters Corporation was founded in 1958 and is headquartered in Milford, Massachusetts.


Insider Transactions at WAT

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
33.8K Shares
From 15 Insiders
Grant, award, or other acquisition 28.8K shares
Open market or private purchase 1K shares
Exercise of conversion of derivative security 4K shares
Sell / Disposition
11.3K Shares
From 4 Insiders
Payment of exercise price or tax liability 7.29K shares
Open market or private sale 4K shares

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