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.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2016FundsmithBuy314,3481,467,530$193,597
Q1 2016Bares Capital ManagementBuy57,289546,180$72,052
Q4 2015Jensen Investment ManagementBuy2,6601,312,555$176,644
Q4 2015Renaissance Technologies LLCBuy1,896296,696$39,929
Q4 2015FundsmithBuy355,0831,153,182$155,195
Q4 2015Bares Capital ManagementBuy141,806488,891$65,795
Q3 2015Jensen Investment ManagementBuy8,4451,309,895$154,843
Q3 2015Renaissance Technologies LLCBuy180,115294,800$34,848
Q3 2015FundsmithBuy487,363798,099$94,343
Q3 2015Bares Capital ManagementBuy231,009347,085$41,029
Q2 2015Jensen Investment ManagementSell-355,7451,301,450$167,080
Q2 2015Renaissance Technologies LLCSell-300,415114,685$14,723
Q2 2015Bares Capital ManagementBuy116,076116,076$14,902
Q1 2015Jensen Investment ManagementBuy5,6101,657,195$206,022
Q1 2015FundsmithSell-138,360310,736$38,631
Q1 2015Renaissance Technologies LLCSell-79,600415,100$51,605
Q1 2015Vulcan Value PartnersBuy16,904566,263$70,398
Q4 2014Jensen Investment ManagementSell-31,2831,651,585$186,167
Q4 2014Renaissance Technologies LLCBuy205,200494,700$55,763
Q4 2014Vulcan Value PartnersBuy549,359549,359$61,924
Q3 2014Jensen Investment ManagementSell-57,8601,682,868$166,806
Q3 2014Renaissance Technologies LLCBuy270,700289,500$28,695
Q2 2014Jensen Investment ManagementSell-70,6971,740,728$181,802
Q2 2014Renaissance Technologies LLCSell-102,21718,800$1,963
Q1 2014Jensen Investment ManagementSell-283,6001,811,425$196,377
Q1 2014Renaissance Technologies LLCBuy34,917121,017$13,119
Q1 2014Cantillon Capital ManagementSell-921,960140,990$15,285
Q4 2013Jensen Investment ManagementSell-29,1452,095,025$209,503
Q4 2013Renaissance Technologies LLCBuy86,10086,100$8,610
Q4 2013Cantillon Capital ManagementSell-1,9651,062,950$106,295

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.