Marino Aineto de Diego

  • Associate
  • Plaza de la Independencia 6
  • 28001 Madrid
  • Spain
  • T +34.91.791.5067


Marino Aineto is an associate in the Corporate Department in the Madrid office of Latham & Watkins.

He advises national and international clients from different industries on general corporate and contractual matters, corporate reorganizations, strategic alliances and provides day-to-day advice on Spanish corporate and commercial regulations.
His main focus lies in domestic and cross-border M&A, private equity transactions, restructuring processes, and corporate finance transactions.

Prior to joining Latham, Marino worked in the corporate and finance department of a well-known international British law firm and interned in the State Attorney Office as well as in a well-known Spanish law firm.



Mr. Aineto de Diego has recently represented:

  • Telefónica Centroamérica Inversiones, a subsidiary of Telefónica, in the sale of Telefónica Móviles Guatemala and Telefónica Móviles El Salvador, Central America-based providers of mobile and fixed telecommunications services, to America Móvil
  • IFM Global Infrastructure Fund in the acquisition of OHL Concesiones, a Spain-based company engaged in the development, operations, and management of toll roads, ports, railways, airports, and concessions in Spain, and Central and South America
  • Ardian in the sale of a majority stake in Trescal, a France-based provider of calibration, asset management, and measurement services, to OMERS Private Equity
  • Bain Capital Private Equity in the acquisition of a majority stake in Fedrigoni, an Italy-based manufacturer and seller of paper, film, self-adhesive, and related products
  • Teladoc in the acquisition of Advance Medical, a provider of telehealth services
  • KKR in the acquisition of Hyperion, a manufacturer of industrial tool components
  • L Catterton in the acquisition of an 80% stake in Goiko Grill, a fast-casual restaurant chain headquartered in Madrid
  • Platinum Equity in ithe acquisition of Iberconsa, a global provider of frozen seafood products
  • TA Associates in the sale of its stake in Hana Group, global provider of freshly prepared sushi
  • A shareholder of Aelca, a Madrid-based real estate developer, in connection with the company’s merger with Via Célere


Bar Qualification
  • Spain (Abogado)
  • LL.M specialized in Business Law, San Pablo-CEU University, Madrid, 2014
  • Law Degree, Universidad de Alcalá, 2013
  • Financial Institutions
  • Energy & Infrastructure
  • Capital Markets
  • Mergers & Acquisitions
  • Emerging Companies
  • Private Equity
  • Latin America Practice