Citadel to Boost Office Presence on Manhattan’s Park Avenue

Ken Griffin’s Citadel is planning to take more office space on Park Avenue as the firm builds out its presence in New York City.

The Chicago-based firm is close to a deal on a long-negotiated lease to expand at 350 Park Ave., a building owned by Vornado Realty Trust, where it already has space, according to people familiar with the matter. The firm is also taking an additional 84,000 square feet (7,800 square meters) across a few floors at a skyscraper at 425 Park Ave., the people said, asking not to be named because the deal is private.