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ECOLAB INC

ECL

Holders

2

Combined Value

$156.34M

Combined Shares

587,697

Current Price

$265.41

52W High

$309.27

vs 52W High

−14.2%

Investor Activity Chart

Quarterly buys (▲) and sells (▼) by tracked investors. Click a marker to view that investor's portfolio; hover for details. Price line is implied from 13F filings (value ÷ shares), not market data.

$226.41$244.86$263.32$281.77Q2'24Q3'24Q4'24Q1'25Q2'25Q3'25Q4'25Q1'26Q2 2024 · implied price $238.00Q3 2024 · implied price $255.33Q4 2024 · implied price $234.32Q1 2025 · implied price $253.52Q2 2025 · implied price $269.44Q3 2025 · implied price $273.86Q4 2025 · implied price $262.52Q1 2026 · implied price $266.02Jim Simons - Renaissance Technologies · bought 311,197 shares @ ~$238.00 · Q2 2024 (new position)Tom Gayner - Markel Group · bought 274,300 shares @ ~$238.00 · Q2 2024 (new position)Jim Simons - Renaissance Technologies · sold 155,900 shares @ ~$255.33 · Q3 2024Jim Simons - Renaissance Technologies · bought 156,200 shares @ ~$234.32 · Q4 2024Jim Simons - Renaissance Technologies · bought 526,700 shares @ ~$253.52 · Q1 2025Jim Simons - Renaissance Technologies · sold 461,900 shares @ ~$269.44 · Q2 2025Jim Simons - Renaissance Technologies · sold 272,155 shares @ ~$273.86 · Q3 2025Jim Simons - Renaissance Technologies · sold 104,142 shares @ ~$273.86 · Q4 2025 (sold out)Jim Simons - Renaissance Technologies · bought 313,397 shares @ ~$266.02 · Q1 2026 (new position)BUYSELLIMPLIED PRICE

Held By

Tracked investors currently holding this security, based on each investor's most recent 13F filing. Gain compares the current market price to each investor's estimated average buy price.

InvestorValue% of PortfolioAvg Buy PriceGainLast ActivityAs of
Jim Simons - Renaissance Technologies$83.37M0.13%~$266.02−0.2%BUY Q1 2026Q1 2026
Tom Gayner - Markel Group$72.97M0.61%~$238.00+11.5%BUY Q2 2024Q1 2026

Recent Activity

Latest position changes by tracked investors. Prices are estimates implied from 13F filings.

QuarterInvestorActionEst. ValueEst. Price
Q1 2026Jim Simons - Renaissance TechnologiesNEW BUY+$83.37M~$266.02
Q4 2025Jim Simons - Renaissance TechnologiesSOLD OUT−$28.52M~$273.86
Q3 2025Jim Simons - Renaissance TechnologiesSELL−$74.53M~$273.86
Q2 2025Jim Simons - Renaissance TechnologiesSELL−$124.45M~$269.44
Q1 2025Jim Simons - Renaissance TechnologiesBUY+$133.53M~$253.52
Q4 2024Jim Simons - Renaissance TechnologiesBUY+$36.60M~$234.32
Q3 2024Jim Simons - Renaissance TechnologiesSELL−$39.81M~$255.33
Q2 2024Jim Simons - Renaissance TechnologiesNEW BUY+$74.06M~$238.00
Q2 2024Tom Gayner - Markel GroupNEW BUY+$65.28M~$238.00

Ownership History

Aggregate position across all tracked investors per quarter (options excluded). Implied price is the reported value divided by shares held.

PeriodHoldersTotal SharesΔ SharesTotal ValueImplied Price
Q1 20262587,697+114.3%$156.34M$266.02
Q4 20251274,300-27.5%$72.01M$262.52
Q3 20252378,442-41.8%$103.64M$273.86
Q2 20252650,597-41.5%$175.30M$269.44
Q1 202521,112,497+89.9%$282.04M$253.52
Q4 20242585,797+36.4%$137.26M$234.32
Q3 20242429,597-26.6%$109.69M$255.33
Q2 20242585,497—$139.35M$238.00