Patrick O’Brien serves as the Chief Operating Officer (COO) and General Counsel at Arrowhead Pharmaceuticals Inc., a biotechnology company focused on developing medicines that treat intractable diseases by silencing the genes that cause them. In his dual role, O’Brien is responsible for overseeing the company’s operational activities and providing legal guidance to ensure compliance and strategic alignment. His leadership has been instrumental in driving Arrowhead’s growth and success in the competitive biotech industry. Before joining Arrowhead, O’Brien built an impressive career in the legal and business sectors. He holds a Juris Doctor degree from a top-tier law school and has extensive experience in corporate law, intellectual property, and regulatory affairs. Prior to his current position, he served as General Counsel at several prominent biotech firms, where he played a key role in navigating complex legal landscapes and facilitating successful partnerships and acquisitions. His strategic vision and legal acumen have been pivotal in shaping Arrowhead’s corporate strategy and operational efficiency. Under O’Brien’s leadership, Arrowhead has made significant strides in advancing its pipeline of RNAi therapeutics. His contributions have not only strengthened the company’s legal and operational frameworks but have also fostered a culture of innovation and excellence. O’Brien’s ability to integrate legal expertise with operational management has been crucial in positioning Arrowhead as a leader in the development of novel genetic medicines, ultimately benefiting patients worldwide.