Cosan SA

Form 420-F13D13G

Insider Trading (Form 4)

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NYSE
Rafael Bergman, Former Chief Finance Officer of Cosan S.A., reported multiple transactions in common stock on September 11, 2026.
NYSE
Maria Rita De Carvalho Drummond, Former Chief Legal Officer of Cosan S.A., reported multiple transactions in common stock on September 11, 2026.
NYSE
Burkhard Otto Cordes, a Director of Cosan S.A., purchased 159,000 shares of common stock on May 18, 2026.
NYSE
Maria Rita De Carvalho Drummond, Chief Legal Officer of Cosan S.A., reported multiple transactions in common stock on August 10, 2026.
NYSE
Marcelo Eduardo Martins, Chief Executive Officer and a Director of Cosan S.A., reported multiple transactions in common stock on August 10, 2026.
NYSE
Cosan S.A. Director Rubens Ometto Silveira Mello reported a transaction involving the acquisition of 77,640 shares of common stock.

Schedule 13D - Activist Investments

NYSE
Cosan S.A. completed two primary public offerings raising R$9.06 billion, significantly altering its capital structure and corporate governance with long-term anchor investor commitments.
Capital raise
NYSE
Cosan S.A. announced an amendment to its Schedule 13D, detailing a proposed R$7.25 billion primary public offering of up to 2 billion shares, anchored by major investors.
Capital raise

Schedule 13G - Passive Investments

NYSE
BlackRock, Inc. has filed a Schedule 13G, reporting a 6.1% beneficial ownership stake in Brazilian energy and infrastructure conglomerate Cosan S.A. as of September 30, 2024.