(Reuters) - HSBC Holdings Plc's biggest Asian investor, China's Ping An Insurance Group Co, voted against the reappointment of departing chief executive Noel Quinn as a director at the bank's shareholder meeting, Bloomberg News reported on Saturday.

Ping An lodged a protest vote against Quinn's leadership at the meeting on Friday, the report added, citing people familiar with the matter.

Ping An and HSBC did not immediately respond to requests for comment.

Quinn, who has announced he will step down as chief executive once a successor is appointed, last year defeated Ping An's long campaign to get HSBC to spin off its Asia business.

(Reporting by Gursimran Kaur in Bengaluru; Editing by Kevin Liffey)