UPDATE 1-Alphabet's legal head David Drummond to retire this month

Google parent Alphabet Inc on Friday announced the retirement of Chief Legal Officer David Drummond, who has been under scrutiny as the board investigated the company's handling of sexual misconduct complaints. Drummond, also senior vice president of corporate development, had been with Google since its start. He incorporated the company as outside counsel, winning the business of co-founders' Larry Page and Sergey Brin. He later spent nearly 18 years as the company's top lawyer and one of its few black executives.

His last day will be Jan. 31, Alphabet said in a securities filing.