By Louis Areniello
Skanska announced that Alexion Pharmaceuticals, Inc. has signed a 150,000-square-foot lease for its state-of-the-art, elliptical office tower, 121 Seaport. Alexion will move its headquarters from New Haven, CT, to Boston.Since launching its commercial development business in the U.S. in 2009, Skanska has invested nearly half a billion dollars to self-finance smart, sustainable developments in Boston. The company has two additional developments in the Seaport: 101 Seaport, the North American headquarters for PwC; and Watermark Seaport, a 300,000-square-foot, LEED Gold residential building with ground-floor retail, which is more than 95 percent leased. Skanska also developed 150 Second Street, a lab and office building in Cambridge, MA, and is currently developing The Harlo, a luxury residential tower at 1350 Boylston Street in the Fenway, where both Tatte Bakery & Café and Oath Craft Pizza will be opening this fall.