M&A: Roche Buys RXDX to strength oncology pipeline. 74% premium • Looking to broaden its oncology portfolio, Swiss healthcare firm Roche (OTCQX:RHHBY) is buying U.S. cancer drugmaker Ignyta (NASDAQ:RXDX) for $1.7B. • Roche will pay $27 per share for Ignyta, representing a premium of about 74% to the stock's closing price on Thursday. • The U.S. company has a suite of drugs in early stage development that use gene therapy to kill off underlying diseases that drive cancer tumor growth.