Two partners at Eton Park Capital Management, a $10 billion hedge fund firm set up by former Goldman Sachs Group star trader Eric Mindich, are leaving the firm, according to people familiar with the situation, adding to several departures in recent years.

The departing partners, who are expected to leave by early 2014, are Isaac Corré, an original partner who has been at the firm since it launched in 2004, and Josh Astrof who joined in 2005, the people said. Corré was responsible for event-driven investing, while Astrof focused on investing in stocks.