WATERS CORP (WAT) Stock Institutional Trading Activity


WATERS CORP (WAT) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Fundsmith, Jensen Investment Management, Fundsmith Investment Services, AKO Capital, and Sequoia Financial Advisors. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2022FundsmithSell-3,5003,689,697$1,264,016,398
Q3 2022Renaissance Technologies LLCSell-9,50010,800$2,911
Q3 2022Fundsmith Investment ServicesSell-2,774822,817$221,774
Q3 2022FundsmithBuy3,9723,693,197$995,427
Q2 2022Jensen Investment ManagementSell-9546,772$15,481
Q2 2022Renaissance Technologies LLCSell-84,00020,300$6,719
Q2 2022FundsmithBuy1,6533,689,225$1,221,060
Q1 2022Jensen Investment ManagementSell-28546,867$14,547
Q1 2022Renaissance Technologies LLCBuy88,700104,300$32,374
Q1 2022Fundsmith Investment ServicesBuy825,591825,591$256,255
Q1 2022FundsmithSell-823,3073,687,572$1,144,585
Q4 2021Jensen Investment ManagementSell-8547,152$17,569
Q4 2021Renaissance Technologies LLCSell-170,70015,600$5,813
Q4 2021FundsmithSell-3154,510,879$1,680,754
Q3 2021Jensen Investment ManagementSell-12047,237$16,878
Q3 2021Renaissance Technologies LLCBuy28,800186,300$66,565
Q3 2021FundsmithBuy103,1554,511,194$1,611,850
Q2 2021Jensen Investment ManagementSell-6547,357$16,367
Q2 2021Renaissance Technologies LLCSell-82,100157,500$54,434
Q2 2021FundsmithBuy14,4954,408,039$1,523,462
Q1 2021Jensen Investment ManagementSell-2,27047,422$13,476
Q1 2021Renaissance Technologies LLCBuy119,100239,600$68,087
Q1 2021FundsmithSell-16,2914,393,544$1,248,513
Q4 2020Jensen Investment ManagementSell-35049,692$12,295
Q4 2020Renaissance Technologies LLCSell-54,200120,500$29,814
Q4 2020FundsmithBuy117,8074,409,835$1,091,081
Q3 2020Jensen Investment ManagementSell-5,66050,042$9,792
Q3 2020Renaissance Technologies LLCBuy73,100174,700$34,185
Q3 2020FundsmithBuy398,2234,292,028$839,864
Q2 2020Jensen Investment ManagementSell-1,44655,702$10,049

Frequently asked questions about WAT activity

  • Which institutional owners are buying WAT?

    Institutional owners buying WAT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in WAT activity?

    "Buy" means an investor increased their reported position in WAT compared to the prior reporting period. This reflects growing exposure to WATERS CORP (WAT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in WAT increasing?

    Institutional interest in WAT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.