LOS ANGELES — Following allegations of sexual harassment against Harvey Weinstein, the movie and television studio he helped to found swiftly fired him as an employee. On Tuesday, during a meeting convened to affirm that dismissal, Mr. Weinstein resigned from the Weinstein Company’s board.

The remnants of the Weinstein Company board, including the other co-founder, Bob Weinstein, convened on Tuesday at the Manhattan offices of Debevoise & Plimpton, a law firm hired by the studio to investigate allegations made against Harvey Weinstein. At the meeting, the board “ratified its decision to terminate” his employment, according to a company spokesman.

Harvey Weinstein, who has been in Arizona, where representatives say he is seeking therapy, phoned into the two-hour meeting and resigned.

Once a top supplier of prestige-minded dramas, the Weinstein Company has been in free-fall since investigations by The New York Times and The New Yorker revealed sexual harassment and rape allegations against Harvey Weinstein going back decades. Over the last week and a half, more than 30 women have come forward publicly with harrowing stories of encounters with him. The police in New York and London have started looking into some claims against Mr. Weinstein, who has denied “any allegations of nonconsensual sex.”