Gildan Activewear Inc.’s entire board of directors and chief executive officer Vince Tyra quit, conceding defeat after a bruising five-month battle with an activist shareholder over the future of the Canadian clothing maker.
The mass resignation is a victory for Los Angeles-based investment firm Browning West LP, owner of about 5 percent of Gildan’s shares. It gains control of the board, installing United Rentals Inc. chair Michael…