Moderna falls as social media posts flag potential cancer vaccine data leak

** Shares of Moderna MRNA.O fall 24% to $187.40

** Several posts on social media, including Reddit and X, noted a potential leak of late-stage data of cancer vaccine developed with Merck MRK.N

** Detailed data from the Moderna-Merck cancer vaccine trial is due at the ESMO Congress on October 24

** Earlier this month, Moderna joined the Nasdaq 100 index to replace Warner Bros Discovery

** 6 of 25 brokerages rate Moderna's stock "buy" or higher, 15 rate it "hold" and four rate it "sell" or lower; their median price target is $130 - LSEG