Two Sigma: The hot new mover and shaker

Technology-driven hedge fund Two Sigma is in the market for a major space expansion and consolidation that could be worth a fortune to a number of Manhattan landlords.

Although it’s rarely in the press, the international, privately held firm boasts $58 billion in assets under management. It’s currently headquartered in a mini-campus at 100 and 101 Sixth Ave. in Tribeca, according to its Web site...