In a transaction arranged by CB Richard Ellis, The Galleon Group has committed to 9,000 s/f at 575 Fifth Ave. The hedge fund, which manages both long and short term equity in the technology, healthcare and new media sectors, will be expanding its presence. The firm will continue to occupy 25,000 s/f at 590 Madison Ave. Dirk Hrobsky, a senior vice president, with CBRE's midtown office, negotiated the eight year lease on behalf of The Galleon Group. Michael Steinberg and Matthew Steinberg of Steinberg & Pokoik Management Corp., represented the building ownership. The hedge fund will now occupy the entire 24th floor of 575 Madison Ave., a class A property located between East 56th St and East 57th St.