Institutional shares held 54.8 Million
83.4K calls
31.3K puts
Total value of holdings $15.7B
$24M calls
$9M puts
Market Cap $17.2B
59,875,900 Shares Out.
Institutional ownership 91.46%
# of Institutions 827


Latest Institutional Activity in WAT

Top Purchases

Q2 2025
Robeco Institutional Asset Management B.V. Shares Held: 515K ($148M)
Q2 2025
Fenimore Asset Management Inc Shares Held: 244K ($70.1M)
Q2 2025
Swedbank Ab Shares Held: 40.5K ($11.6M)
Q2 2025
Meag Munich Ergo, Kapitalanlagegesellschaft Mb H Shares Held: 3.91K ($1.12M)
Q2 2025
Park Avenue Securities LLC Shares Held: 2.73K ($783K)

Top Sells

Q2 2025
Independent Investors Inc Shares Held: 26.3K ($7.55M)
Q2 2025
Armstrong Henry H Associates Inc Shares Held: 8.16K ($2.34M)
Q2 2025
La Banque Postale Asset Management Sa Shares Held: 3.08K ($886K)
Q2 2025
Figure 8 Investment Strategies LLC Shares Held: 5.32K ($1.53M)
Q2 2025
Dynamic Advisor Solutions LLC Shares Held: 9.4K ($2.7M)

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
26.5K Shares
From 13 Insiders
Grant, award, or other acquisition 26.5K shares
Sell / Disposition
7.51K Shares
From 4 Insiders
Payment of exercise price or tax liability 7.51K shares

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