Mello Rubens Ometto Silveira 4

What Happened
Mello Rubens Ometto Silveira, a director of Cosan S.A. (CSAN), sold 77,640 shares on 2026-05-22 in an open-market/ private sale at $3.44 per share, netting approximately $267,082. The filing notes Cosan’s common stock is represented by American Depositary Shares (ADS); based on the footnote (1 ADS = 4 common shares) the sale is equivalent to 19,410 ADS (implied ADS price $13.76).

Key Details

• Transaction date and price: 2026-05-22 — 77,640 shares sold @ $3.44 each (total ≈ $267,082). Transaction code: S (sale).
• Shares owned after transaction: Not disclosed in this Form 4 filing.
• Footnote: Common stock is represented by ADS; 1 ADS = 4 common shares (so 77,640 common shares ≈ 19,410 ADS).
• Filing timeliness: Report filed 2026-05-26 for a 2026-05-22 transaction (filed 4 days later), which is outside the typical 2-business-day Form 4 reporting window.

Context
This was a sale (not a purchase or option exercise). Sales by directors are common and can be for many reasons (personal liquidity, diversification, taxes) and do not by themselves indicate the company’s future performance. No 10b5-1 plan, tax withholding, or other conditions were disclosed in this filing.