WATERLOO, Ont. — A U.S. court has dismissed three claims made by a former BlackBerry Ltd. employee who alleges the company’s chief executive sexually harassed her and then retaliated against her after she reported the behaviour.

U.S. magistrate judge Sallie Kim granted BlackBerry and John Giamatteo’s request to throw out a claim that they fostered a “hostile” work environment because the former employee failed to present evidence that BlackBerry and Giamatteo’s behaviour was pervasive or severe.