Citi co-head of M&A Peter Tague is leaving the firm

Citigroup is losing one its three co-heads of mergers and acquisitions.

Peter Tague, who served as global co-head of M&A alongside Cary Kochman and Mark Shafir, is leaving Citi, according to a report by Liz Hoffman of The Wall Street Journal.

Tague was appointed to the lead M&A role in the 2012. He'd been with Citi or one of its predecessors since the late-1990s, according to the report.

This story is developing and will be updated.