NEW YORK, Jan. 06, 2026 (GLOBE NEWSWIRE) -- SL Green Realty Corp. (NYSE:SLG), Manhattan’s largest office landlord, and Rockpoint, a Boston-based real estate private equity firm, today announced a joint venture for the ownership of 100 Park Avenue through SL Green’s sale of a 49% interest to Rockpoint at a gross asset valuation of $425.0 million.