Siobhan Nolan Mangini

President and Chief Financial Officer, NGM Biopharmaceuticals Inc.

Siobhan Nolan Mangini is a healthcare executive who has delivered innovative healthcare solutions and carried them forward from strategy to execution across two public companies. She has achieved this through her passion for building high-performing teams and leveraging strategic partnerships to push forward strategic and operational change. Siobhan is currently president and CFO of NGM Bio, an innovative biology-driven clinical-stage biotech. While at NGM, she refocused the company strategy around immuno-oncology and ophthalmology, raised over $200M in equity capital and structured a critical partnership with Merck (MRK). Prior to NGM, Siobhan was at Castlight Health (CSLT), a formerly publicly traded enterprise SaaS healthcare technology company. Siobhan was involved with the company across critical transformative events, in particular the company’s IPO, multiple strategic partnerships, including a transformational relationship with Anthem (ANTM), and the acquisition of Jiff, a wellbeing company. Previously, Siobhan held roles at Castlight in business development, strategy, and business operations. Earlier in her career, Siobhan was a management consultant at Bain & Company and in investment management, managing the endowment of the Kaiser Family Foundation

Siobhan is on the board and the audit committee chair of Marathon Health, a primary care company and is on the boards of SmithRx, a pharmacy benefit manager, and Virta Health, a diabetes reversal company. She was previously on the board and audit committee chair of Artemis Health, a data warehousing company. Siobhan is a passionate supporter of entrepreneurial and scalable solutions in healthcare that reduce inequality and is a founding member of the operator network of January VC, a seed-stage fund that opens doors for the visionary founders of the future.

Siobhan holds an MBA from the Stanford Graduate School of Business, an MPA from the Harvard Kennedy School of Government, and bachelor’s in economics from the Wharton School at the University of Pennsylvania.