• Ana Carolina Paifer disclosed trades that lifted her stake to 20.22% of Atom’s voting and share capital.
• She bought 2,782,804 ordinary shares in a private deal, taking her holding to 24.62%.
• A subsequent private sale of 1,047,416 ordinary shares reduced the stake to 4,813,050 shares, or 20.22%.
• Paifer said the investment is a minority position, not aimed at changing control or management.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Atom Educacao e Editora SA published the original content used to generate this news brief on August 12, 2026, and is solely responsible for the information contained therein.