Stonepine Capital is a life-science focused investment management company


Jon M. Plexico founded Stonepine Capital Management LLC in 2006, where he is currently a Managing Member. Previously, Mr. Plexico was Managing Director at Merriman Curhan Ford & Co., where he led healthcare corporate finance focusing on corporate financings and mergers and acquisitions. Prior to that, Mr. Plexico was an early employee at Chemdex Corporation, an e-commerce life-science company that grew to over 500 employees and completed an IPO during his tenure. He began his career at Quidel Corporation, where he became National Sales Manager for the Autoimmune Division. He has served on the Boards of Directors of Zila, Inc., Immunetech, and currently serves on the Board of Viveve Medical, Inc. Mr. Plexico is a graduate of Colgate University.

Timothy P. Lynch joined Stonepine Capital Management LLC as a Managing Member in 2008. Previously he served as Chief Financial Officer at Tercica, Inc. and InterMune, Inc. Mr. Lynch also worked in corporate development for Elan Corporation plc and began his career with Goldman, Sachs & Co. He has served on the Boards of Directors of Aradigm Corporation, Allos Therapeutics, Bioform Medical, Insite Vision, and Nabi Biopharmaceuticals. He has also served as a member of the Cowen Healthcare Royalty Fund’s strategic advisory board. Mr. Lynch is a graduate of Colgate University and Harvard Business School.

Jeffrey P. Nunnenkamp joined Stonepine Capital Management LLC as Chief Operating Officer and Chief Compliance Officer in 2017. Prior to joining Stonepine, Mr. Nunnenkamp was Vice President of Alternative Funds Finance at PIMCO with responsibility for hedge funds finance and operations. With over 15 years relevant experience, his previous positions include Manager of fixed income portfolio accounting at Wells Capital Management, Second Vice President at Northern Trust where he managed the hedge fund administration group, and Supervisor of global portfolio administration at Western Asset Management. He holds an MBA in finance from Loyola Marymount University, a BBA in Marketing Management from the University of Portland, and is a Certified Public Accountant.

Matthew B. Carroll joined Stonepine Capital Management LLC in 2012 and is Director of Research. He has nearly a decade of experience specializing in accounting, finance and tax matters. Prior to joining Stonepine, Mr. Carroll ran a CPA firm, Tyler & Carroll, LLC which he co-founded. Previously, he worked in the furniture industry and at Dell, Inc. in Austin, Texas. Mr Carroll has taught bookkeeping courses and served as treasurer and board member for a local not-for-profit organization. Mr. Carroll holds a bachelor’s degree in business with an emphasis in accounting from Linfield College and is a Certified Public Accountant (inactive).

Nathan M. LiaBraaten joined Stonepine Capital Management LLC as Research Associate in 2015. Prior to joining Stonepine, Mr. LiaBraaten was a financial advisor with Bank of America Merrill Lynch focusing on the needs of small- to mid-sized businesses. Previously, he held a business development role with Vencore Capital, a venture debt firm, where he was responsible for developing, underwriting, and managing a portfolio of business loans to early-stage companies. He attended the University of Oregon where earned an MBA in finance and bachelor’s degrees in business administration and psychology.