June 29, 2026
Willkie advised Shamrock Capital on the sale of a majority stake in its portfolio company Ad Results Media (ARM), a leading audio and podcast advertising agency, to Miroma Group, a global independent marketing company.
Miroma recently announced that it acquired a majority stake in ARM from Shamrock Capital, which will retain a minority stake in the business. The acquisition represents UK-based Miroma’s most significant expansion into the U.S. market to date.
ARM is one of the world’s largest buyers of podcast and audio media, connecting leading with audiences across podcasts, YouTube, streaming platforms, and radio.
Shamrock Capital is a Los Angeles-based investment firm specializing in media, entertainment, content, communications, sports, marketing, education and technology services. Shamrock invests through a multi-fund strategy centered on private equity investments, as well as ownership and financing of content and media rights.
The Willkie team was led by partners Ray LaSoya and Joe Kaczorowski with associate Russell Whitman.
Miroma recently announced that it acquired a majority stake in ARM from Shamrock Capital, which will retain a minority stake in the business. The acquisition represents UK-based Miroma’s most significant expansion into the U.S. market to date.
ARM is one of the world’s largest buyers of podcast and audio media, connecting leading with audiences across podcasts, YouTube, streaming platforms, and radio.
Shamrock Capital is a Los Angeles-based investment firm specializing in media, entertainment, content, communications, sports, marketing, education and technology services. Shamrock invests through a multi-fund strategy centered on private equity investments, as well as ownership and financing of content and media rights.
The Willkie team was led by partners Ray LaSoya and Joe Kaczorowski with associate Russell Whitman.
