SAC Capital Advisors’ recent hiring spree is continuing, as the Stamford, Conn., hedge fund giant has snatched at top Karsch Capital Management executive.

Aaron Cowen will join SAC from the global equities hedge fund later this year. He will work directly with SAC founder Steven Cohen to pick stocks and manage a team of analysts.

The $16 billion firm has hired 25 new teams to manage stocks since November, opening a Boston office to accommodate some of them.

Separately, Bloomberg News reports that the firm is reopening its flagship fund to new investors for the first time in three years. SAC Capital International is up about 1% year-to-date.