The share price of Cosan S.A. (NYSE:CSAN) fell by 20.92% between September 18 and September 25, 2025, putting it among the Energy Stocks that Lost the Most This Week. Cosan S.A. (CSAN) Sank By Over 20% This Week. Here is Why.   Cosan S.A. (NYSE:CSAN) engages in the fuel distribution business with operations in Brazil, England, France, Spain, Portugal, Argentina, Bolivia, Uruguay, Paraguay, the United States, Asia, and internationally. Cosan S.A. (NYSE:CSAN) sank after the company announced plans to rai ...