Santander Brasil Appoints B3 CEO Gilson Finkelsztain as New Chief Executive
São Paulo, Brazil – March 23, 2026 — Banco Santander Brasil announced the appointment of Gilson Finkelsztain, current CEO of Brazilian stock exchange B3, as its new Chief Executive Officer to lead the bank’s next phase of profitable growth. The transition takes effect mid-2026, pending regulatory approvals, with outgoing CEO Mario Leão serving until July after 11 years with the organization, including five as CEO.
Announcement Specifics
Santander Brasil’s board selected Finkelsztain for the CEO role, effective mid-2026, subject to regulatory clearance. Leão will oversee operations through July 2026 before stepping down. No specific financial figures, transaction volumes, or compensation details were disclosed in the announcement. The appointment leverages Finkelsztain’s prior experience at Santander and his current leadership of Brazil’s primary stock exchange.
Stakeholder Perspective
“He brings a strong background and experience in Brazil’s financial sector — including Santander — placing him well to lead the next phase of profitable growth at Santander Brazil.”
— Ana Botín, Executive Chair at Banco Santander
Why it matters: The statement emphasizes Finkelsztain’s dual expertise in commercial banking and capital markets infrastructure, positioning him to drive both operational excellence and strategic expansion.
“Thanks to his leadership, the bank is today a more diversified, agile and strong organization.”
— Ana Botín, Executive Chair at Banco Santander
Why it matters: This acknowledgment of Leão’s tenure highlights the foundation of diversification and organizational strength upon which Finkelsztain will build.
Industry Context
Brazil’s banking sector faces mounting pressure from digital transformation and fintech competition, requiring traditional institutions to balance innovation with profitability. Finkelsztain’s tenure at B3 advanced Brazil’s capital markets modernization, including technology infrastructure upgrades and expanded product offerings. His appointment reflects a strategic consolidation of commercial banking and exchange expertise as financial institutions seek leaders capable of navigating both retail banking and capital markets convergence.
The leadership transition occurs as Latin American banks prioritize sustainable growth amid economic volatility. While this announcement centers on Brazilian operations, no direct implications for MENA financial hubs such as Riyadh, Dubai, or Abu Dhabi were disclosed.
Conclusion
Finkelsztain’s appointment positions Santander Brasil to leverage capital markets expertise for continued diversification and profitability focus. Regulatory approval is expected in the coming months, with the formal transition targeted for July 2026 following Leão’s planned departure.
