Attovia so: IPO spree real, $289M in upsized bidAttovia Therapeutics Inc. became the latest to join what’s become the year’s IPO parade, pricing its upsized sale of 17 million shares at $17 each for $289 million in proceeds. The San Carlos, Calif.-based company came out of the gate strong, closing Aug. 5 (NASDAQ:ATTO) at $21.90, up $4.90, or 28.8%.