Our professionals

Our professionals


Caio Cossermelli

Caio Cossermelli


Caio has extensive experience advising on numerous IPOs and follow-ons, as well as advising intermediary institutions and issuers in registering publicly-held companies, establishing securities distribution programs – such as units – and in day-to-day corporate and regulatory activities. Caio represents clients in mergers and acquisitions (including De-SPACs), debt and securitization offers, financing, and structured transactions, including for infrastructure projects. He also works with international transactions involving multiple jurisdictions, such as loans and bond issuances.


Bachelor of Laws – Pontifícia Universidade Católica (PUC-SP);

Master of Laws (LL.M.) – Northwestern Pritzker School of Law.


Análise Advocacia 500 – Financial Transactions, Economic Sector: Food, Beverage & Tobacco (2020–2021);
Chambers Brazil – Capital Markets (2014–2023);
Chambers Global – Capital Markets (2014–2023);
Euromoney Expert Guide – Capital Markets (2022);
IFLR 1000 – Capital Markets: Equity/Debt: Highly regarded (2022 – 2023);
Latin Lawyer 250 – Capital Markets (2021–2024);
The Legal 500 – Capital Markets: Next Generation Partner (2024);
Who’s Who Legal Global – Capital Markets: Debt & Equity (2023).

Único. The Mattos Filho news portal

Authored publications

Mattos Filho in the media

With Caio Cossermelli
Latin Lawyer

Mattos Filho hires Lobo de Rizzo partner

​On the back of a nine-partner promotion last week, Brazil’s Mattos Filho, Veiga Filho, Marrey Jr e Quiroga Advogados has added further firepower by hiring a capital markets partner from Lobo de Rizzo Advogados.

Caio Cossermelli is joining the firm today, taking Mattos Filho’s partner count to 118.

Click here and learn more.

Areas of expertise

Stay in touch

Get first-hand access to legal analysis from our specialists in different sectors through texts and podcasts. Stay on top of the main issues that impact your business.