NEW YORK CITY — SL Green Realty Corp. has signed new leases at 100 Park Avenue, a 36-story, 825,851-square-foot office tower located in Manhattan, New York City. First Wall Street Group signed a lease for the building’s entire 20th floor, totaling 15,945 square feet. The lease carries a 7-year term. In addition, Wells Fargo Trade Capital Services, which signed a 10-year lease for 44,716 square feet 2 months ago, has expanded its lease to include an additional 12,293 square feet on the second floor. Paul Glickman, Alex Chudnoff, Tara Stacom, Miti Liebersohn, Diana Biasotti and Jonathan Tootell of Cushman & Wakefield represented SL Green in both lease transactions. SL Green had recently completed a $72 million redevelopment of 100 Park Avenue. Additional tenants at the property include BDO Seidman, J&W Seligman Co., Kreindler & Kreindler, and Novantas.