XP lists 10 executives, led by Thiago Maffra, Chief Executive Officer (age 39). Victor Andreu Mansur Farinassi is the company's Chief Financial Officer (age 34).
The average age of the executives with a known age is 44; the youngest is 34 and the oldest 58.
Titles, ages and pay from company filings.

Founder & Executive Chairman
Chief Executive Officer
Chief Financial Officer
Chief Investor Relations Officer
General Counsel
Head of M&A
Head of Recruitment & Selection
Chief Executive Officer of Banco XP S.A.
Investor Relations Officer
Equity Research Analyst
Thiago Maffra (Chief Executive Officer), age 39.
Victor Andreu Mansur Farinassi (Chief Financial Officer), age 34.
Guilherme Dias Fernandes Benchimol (Founder & Executive Chairman), Thiago Maffra (Chief Executive Officer), Victor Andreu Mansur Farinassi (Chief Financial Officer), Andre Parize (Chief Investor Relations Officer) and Fabrício Cunha de Almeida (General Counsel), and 5 more.