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Oncoclínicas

ONCO11ONCO3

Latin America's largest private oncology network, listed on B3 as ONCO3. Subject of a mandatory tender offer CVM imposed on US manager Centaurus in August 2026, under the bylaws' 15% poison pill.

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Last 90 days

What sources are saying

Oncoclínicas's tender offer got a date and a price: CVM set an October 24 deadline for Centaurus to launch the offer, with Selic adjustment, after the board's unanimous August 25 ruling that triggered the 15% poison pill. Centaurus contests it and maintains a CAM-B3 arbitration filed before the ruling.

Updated September 16, 2026 · 2 verified articles

Market transmission

Why it matters

The stock tracks the mandatory offer's outcome — price, timetable and appeals — plus fundamentals of treatment volumes, payer disputes and leverage.

Explanatory mechanism, not a forecast or recommendation.

Articles in chronological order

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