Jim Simons' quantitative hedge fund, Renaissance Technologies, liquidated its entire position in Ecolab Inc. (ECL) during the second quarter of 2026. The sale involved all 313,400 shares held by the firm, which were valued at approximately $83.37 million at the end of the prior quarter. Ecolab is a global provider of water, hygiene, and infection prevention solutions and services to a wide range of industrial and commercial customers.

This trade was disclosed in a quarterly 13F filing with the SEC on August 13, 2026. It is important to note that these filings reflect investment decisions made during the preceding quarter, in this case, between April 1 and June 30, 2026, and do not represent the firm's current real-time holdings. Renaissance Technologies has not publicly commented on its reasons for exiting the position.