Moderna stock plummets 20% following cancer vaccine data leak

Moderna (MRNA) stock collapsed Thursday after a third party leaked purported cancer vaccine data ahead of a highly anticipated presentation Saturday at the European Society of Clinical Oncology congress. Representatives for Merck (MRK), Moderna’s partner and the company in charge of the presentation, did not immediately respond to requests for comment. The companies tested the cancer vaccine, autogenous intismeran, or INT, in combination…