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Seres posts big gain after upsized IPO

June 27, 2015 12:42 AM UTC

Seres Therapeutics Inc. (NASDAQ:MCRB) gained $33.40 (186%) to $51.40 after raising $133.7 million through the sale of 7.4 million shares at $18 in a bumped-up IPO underwritten by Goldman Sachs; BofA Merrill Lynch; Leerink; and Canaccord.

The IPO price valued the microbiome company at $681 million. Seres ended the day with a market cap of $1.9 billion. ...