PASADENA, Calif.--(BUSINESS WIRE)--Arrowhead Research Corporation (NASDAQ:ARWR) (“the Company”) today announced that it has increased its ownership of majority owned subsidiary Calando Pharmaceuticals through the exchange of Calando Series A Preferred Stock for Arrowhead warrants. This exchange follows recent milestones achieved by Calando, including several notable first accomplishments in RNAi technology. These include proof of the first definitive systemic siRNA delivery and first to show RNAi mediated knockdown of target mRNA and protein in humans.
