Ona Therapeutics SL, a 2019 spin-out from a Spanish research institute and foundation, has raised $86.6 million from venture capitalists to advance a portfolio of early-stage antibody-drug conjugates (ADCs) for refractory cancers. The Series B round was co-led by Columbus Venture Partners of Spain and Mérieux Equity Partners of France. They were joined by the existing Spain-based investors Alta Life Sciences and Asabys Partners and Bpifrance, the French public investment bank.
