Roderick de Greef — Chief Financial Officer and Secretary at BioLife Solutions

Mr. Roderick de Greef, also known as Rod, has been Chief Financial Officer and Secretary of BioLife Solutions, Inc. since May 4, 2016. Mr. de Greef has been Chief Financial Officer of Isowalk, Inc. since November 10, 2015. He serves as a Partner of MedTech Advisors, Inc., a financial and strategic consulting firm focused on the medical device industry. He has over thirty years of experience in raising capital and financial management in the medical device industry. He served as Interim Chief Financial Officer and Interim Secretary of BioLife Solutions, Inc. from March 7, 2016 to May 4, 2016. He served as the Chief Financial Officer and Consultant of CardioPolymers Inc. Mr. de Greef served as Corporate Secretary, Principal Accounting Officer and Vice President of Finance & Administration of Cambridge Heart Inc. until July 1, 2007 and also served as its Interim President and Treasurer. Mr. de Greef served as Chief Financial Officer of Cambridge Heart Inc. from October 3, 2005 to July 1, 2007. Mr. de Greef served as Secretary of Cardiac Science Inc. since March 2001, Chief Financial Officer and Executive Vice President from February 2001 to September 2005 and also served as its Principal Accounting Officer. From 1995 to 2001, Mr. de Greef provided corporate finance advisory services to a number of early stage companies including Cardiac Science, where he was instrumental in securing Cardiac Science's equity capital beginning in 1997 and advising on merger and acquisition activity. From 1989 to 1995, Mr. de Greef served as Vice President and Chief Financial Officer of BioAnalogics Inc. and International BioAnalogics Inc. From 1986 to 1995, Mr. de Greef served as Chief Financial Officer of several publicly held, development stage medical technology companies. From 1986 to 1989, he served as Controller and then Chief Financial Officer of Brentwood Instruments Inc. From 1983 to 1986, he held financial analysis positions with W.R. Grace and Co., and Santa Fe Minerals Inc., in Dallas, Texas. Mr. de Greef served as the Chairman of Cambridge Heart Inc. from November 2008 to November 6, 2013. He serves as a Director of True Colors International Inc.He served as has been an Independent Director of Pareteum Corporation since September 23, 2015 until September 19, 2017. Mr. de Greef served as a Director at BioLife Solutions Inc. from June 19, 2000 to November 2013. He served as a Director of Endologix Inc. from November 2003 to May 23, 2013. He served as Director of Cambridge Heart Inc. from November 2008 to November 4, 2013. He served as an Independent Director of Elephant Talk Communications Corp. from January 2008 to October 2011. He served as a Director of Dentalview Inc. Mr. de Greef has a BA in Economics and International Relations from California State University at San Francisco and an MBA from the University of Oregon.