Davidson Kempner Ex-Trader Says He Blew Whistle, Was Ousted

A former top trader and partner at Davidson Kempner Capital Management accused the firm and its investing chief, Tony Yoseloff, of ousting him last year after he attempted to expose wrongdoing.

Michael Herzog initiated a whistleblower action in the UK and is seeking to force one of the world’s largest hedge funds to disclose documents and “deposition testimony” to support his claim, according to US court filings. He alleges he was “constructively dismissed” by Yoseloff after making multiple disclosures about “misconduct,” the filings show.