A ‘counter mobilization’ to transform corporate food systems included a Global Virtual Rally that highlighted the critical role fisheries play in food security and nutrition. From 25 to 28 July 2021, civil society organizations (CSOs) from around the world participated in the Peoples’ Counter Mobilization to Transform Corporate Food Systems. The Mobilization included an eight-hour Global Virtual Rally, with contributions from 100 organizations, three roundtable discussions, and 15 independent dialogues.