Shake-up at Banco do Brasil's Top Ranks and Corporate Moves Lead the Week

The departure of a vice president at Banco do Brasil was the most-read news story between October 26 and 30, 2026, by a wide margin. The rest of the ranking features company decisions about their own capital and the scope of their businesses: CSN Mineração approved a share buyback program, Oncoclínicas announced the suspension of a tender offer, and two companies announced acquisitions. WEG closed the acquisition of a unit of L&S Electric, and Itaú Unibanco announced the purchase of NeoSpace. See the full list below.

1. Banco do Brasil (BBAS3) reports vice president's resignation — Carla Nesi leaves the Retail vice presidency; Lassalvia takes over on an interim basis
2. CSN Mineração (CMIN3) approves buyback of up to 100 million shares — The buyback program lasts 18 months and runs until November 19, 2027
3. Oncoclínicas (ONCO3) files notice on suspension of tender offer — Company says it is not a party to the legal proceeding that reportedly suspended the acquisition offer
4. WEG (WEGE3) announces acquisition of L&S Electric's PCS for US$ 11 million — The US business generated US$ 9.6 million in revenue in 2025, focused on hydroelectric generation
5. Itaú Unibanco (ITUB4) announces purchase of NeoSpace for R$ 2.9 billion — The acquisition will be paid in an upfront installment and deferred amounts over five years