Annemarie O’Brien

Annemarie O’Brien is a prominent figure in the world of horse racing, known for her involvement with the Coolmore racing operation alongside her husband, trainer Aidan O’Brien. She is a part-owner of several high-class racehorses, including Expanded, a rising star in the racing circuit. The O’Brien family's breeding operation, Whisperview Trading, has produced top racehorses under her management, contributing to the legacy of one of the most successful trainer-owner partnerships in the sport.