Previously, he served as our Executive Vice President, Development and Technical Operations, from July 2014 to January 2019. He joined Geron in September 2012 as our Executive Vice President, Technical Operations. Prior to joining Geron, Dr. Grethlein was Executive Vice President and Chief Operating Officer for Inspiration Biopharmaceuticals, a biopharmaceutical company, from January 2010 to September 2012. From October 2008 until January 2010, Dr. Grethlein was Senior Vice President of Biotechnology and Portfolio Management Team Leader for Hematology at Ipsen S.A., a global specialty pharmaceutical company. His responsibilities at Ipsen included planning and execution of worldwide strategy for product and portfolio development in the hematologic therapeutic area. From 2003 to 2008, Dr. Grethlein served as Senior Vice President of Pharmaceutical Operations at Tercica, Inc., an endocrinology-oriented biopharmaceutical company, where he was a member of the senior executive team that governed corporate strategy, business planning and company operations, and had responsibility for all manufacturing and quality functions.
Before joining Tercica, Dr. Grethlein served in various positions at Elan Corporation, a biotechnology company, from 1997 to 2003, including as Senior Director, South San Francisco Pharmaceutical Operations. From 1995 to 1997, Dr. Grethlein served as Manager, Biologics Development and Manufacturing, for Athena Neurosciences, Inc., a pharmaceutical company. Prior to this, he served in various engineering positions for the Michigan Biotechnology Institute, a non-profit technology research and business development corporation. Dr. Grethlein received his A.A. degree in liberal arts from Simon’s Rock Early College, his B.S. in biology from Bates College and his M.S. and Ph.D. in chemical engineering from Michigan State University.
How old is Andrew J. Grethlein?
Dr. Grethlein is currently 60 years old. There are 5 older executives and no younger executives at Geron. The oldest executive at Geron is Dr. John A. Scarlett M.D., Chairman of the Board, President & CEO, who is 73 years old. Learn More on Andrew J. Grethlein's age.
How do I contact Andrew J. Grethlein?
The corporate mailing address for Dr. Grethlein and other Geron executives is 919 EAST HILLSDALE BOULEVARD SUITE 250, FOSTER CITY CA, 94404. Geron can also be reached via phone at (650) 473-7700 and via email at investor@geron.com. Learn More on Andrew J. Grethlein's contact information.
Has Andrew J. Grethlein been buying or selling shares of Geron?
Who are Geron's active insiders?
Geron's insider roster includes Faye Feller (Executive Vice President, Chief Medical Officer), Andrew Grethlein (xecutive Vice President, Chief Operating Officer), V. Lawlis (Director), Susan Molineaux (Director), Elizabeth O'Farrell (Director), Scott Samuels (Executive Vice President, Chief Legal Officer and Secretary), John Scarlett (CEO), and Robert Spiegel (Director). Learn More on Geron's active insiders.
Are insiders buying or selling shares of Geron?
During the last twelve months, Geron insiders bought shares 2 times. They purchased a total of 27,500 shares worth more than $46,150.00. During the last twelve months, insiders at the biopharmaceutical company sold shares 3 times. They sold a total of 1,562,248 shares worth more than $6,808,003.88. The most recent insider tranaction occured on February, 27th when EVP Scott Alan Samuels bought 15,000 shares worth more than $24,150.00. Insiders at Geron own 3.1% of the company.
Learn More about insider trades at Geron. Information on this page was last updated on 2/27/2025.
