SL Green Realty has signed two new, long-term office leases covering more than 390,000 square feet.

Bloomberg LP, the world’s premier information network, signed a 15-year lease covering 254,556 square feet for eight floors at 919 Third Avenue, the 47-story 1.5 million-square-foot property located between East 55th and 56th Streets.

Additionally, WeWork, provider of shared workspace, community and services, signed a 15-year lease covering 136,118 square feet, comprising all nine floors at 315 West 36th Street.

“Each of these transactions required extensive work with multiple tenants to create the blocks of space,” said Steven Durels, Executive Vice President, Director of Leasing and Real Property for SL Green, who added, “these new leases are a testament to the continued strength of midtown Manhattan’s office leasing market.”

Peter Turchin, Gregg Rothkin, James Ackerson and Edward Goldman of CBRE represented the landlord at 919 Third Avenue. Hays Realty Services represented WeWork at 315 West 36th Street while SL Green handled the transaction in-house on behalf of the building’s joint-venture ownership.