NEW YORK--(BUSINESS WIRE)--Pfizer Inc. today announced that it has filed a lawsuit against Metsera, Inc., its Board of Directors, and Novo Nordisk, S.A. in the Delaware Court of Chancery. The lawsuit asserts claims for breach of contract, breach of fiduciary duty, and tortious interference in contract arising from Metsera's breach of its obligations under the merger agreement between Pfizer and Metsera. Pfizer alleges that the Novo Nordisk offer cannot qualify as a "Superior Company Proposal†u. ...