Rib-X Pharma Raises $25 Million

Rib-X Pharmaceuticals Inc., a New Haven, Conn.-based developer of antibiotics for the treatment of antibiotic-resistant infections, has raised $25 million in fourth-round funding. Return backers include Warburg Pincus, ABS Ventures, Axiom Ventures, EuclidSR Partners, MedImmune Ventures, Oxford Bioscience Partners, S.R. One and Vox Equity Partners I. The company had previously raised over $120 million.

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