After launching Ventana Medical Systems as a spinout from the University of Arizona, Dr Thomas Grogan played a central role in building the company from a scrappy startup into a leading provider of automated instruments for tissue biopsies and cancer diagnostics.

In the second instalment of this three-part series on Dr Grogan’s life and career, we hear about how he built, scaled and eventually sold Ventana to Roche in 2008.

Watch the full Q&A below (click the buttons on the play bar to jump to any specific segment that interests you).