ECOLAB INC (ECL) Stock Institutional Trading Activity


ECOLAB INC (ECL) 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 Jensen Investment Management, Mairs & Power Growth Fund, Cullen Value Fund, Cantillon Capital Management, and Renaissance Technologies LLC. 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 2015Jensen Investment ManagementBuy35,1202,633,631$301,235
Q4 2015Eagle Capital ManagementBuy255,4669,322,308$1,066,286
Q4 2015Sequoia Financial AdvisorsBuy2902,142$224
Q4 2015Renaissance Technologies LLCSell-131,500119,222$13,637
Q4 2015Cantillon Capital ManagementBuy56,0003,310,797$378,689
Q4 2015Eagle Capital ManagementBuy27626,635$3,047
Q3 2015Mairs & Power Growth FundSell-43,8142,436,649$267,349
Q3 2015Jensen Investment ManagementBuy11,9302,598,511$285,109
Q3 2015Eagle Capital ManagementBuy64,0809,066,842$994,814
Q3 2015Cantillon Capital ManagementSell-6,9003,254,797$357,116
Q3 2015Eagle Capital ManagementSell-6026,359$2,892
Q2 2015Mairs & Power Growth FundSell-3602,480,463$280,466
Q2 2015Jensen Investment ManagementSell-1,9272,586,581$292,465
Q2 2015Eagle Capital ManagementSell-805,3229,002,762$1,017,942
Q2 2015Renaissance Technologies LLCSell-387,600250,722$28,349
Q2 2015Cantillon Capital ManagementSell-97,2003,261,697$368,800
Q2 2015Eagle Capital ManagementSell-3526,419$2,987
Q1 2015Mairs & Power Growth FundBuy49,3662,480,823$283,757
Q1 2015Jensen Investment ManagementBuy1,2772,588,508$296,074
Q1 2015Eagle Capital ManagementSell-65,8379,808,084$1,121,849
Q1 2015Sequoia Financial AdvisorsSell-2901,852$212
Q1 2015Renaissance Technologies LLCBuy227,300638,322$73,011
Q1 2015Cantillon Capital ManagementBuy315,2323,358,897$384,190
Q1 2015Eagle Capital ManagementSell-20226,454$3,026
Q4 2014Mairs & Power Growth FundBuy178,0832,431,457$254,136
Q4 2014Jensen Investment ManagementBuy508,0502,587,231$270,417
Q4 2014Eagle Capital ManagementSell-46,1449,873,921$1,032,022
Q4 2014Sequoia Financial AdvisorsSell-302,142$224
Q4 2014Renaissance Technologies LLCBuy222,500411,022$42,960
Q4 2014Cantillon Capital ManagementBuy529,7203,043,665$318,124

Frequently asked questions about ECL activity

  • Which institutional owners are buying ECL?

    Institutional owners buying ECL 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 ECL activity?

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

  • Is institutional interest in ECL increasing?

    Institutional interest in ECL 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.