Black Beret Life Sciences, LLC

Marc Steven Penn, M.D., Ph.D., FACC


Dr. Marc Penn is the CEO of Black Beret Life Sciences (Houston, TX) where he oversees the life science investments of the Bosarge Family Office.  Dr. Penn directs the strategy at Tissue Genesis, LLC, (Honolulu, HI), Advanced Regen Medical Technologies, LLC, (Newark NJ), the novel sugar replacement Sola (Houston, TX), and the stem cell treatment center, Okyanos (Freeport Bahamas). A cardiologist and Director of Research at the Summa Cardiovascular Institute in Akron, OH, Dr. Penn is also Professor of Medicine at Northeast Ohio Medical University where he leads the Skirball Laboratory for Cardiovascular Cellular Therapeutics (Rootstown, OH). 

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Rajesh (R.K.) Khosla


Rajesh (R.K.) Khosla is Chief Business Officer of Black Beret Life Sciences, LLC. R.K. was most recently CEO at Laguna Pharmaceuticals (formerly ChanRx Corp.), a company developing a multi-channel drug for the treatment of atrial fibrillation/atrial flutter, taking it through a very successful Phase 2b and raising $30M for a Phase 3 study. Simultaneously, he was CEO-in-Residence at BioEnterprise Corp. helping companies to accelerate their growth to benefit the Northeastern Ohio economy. Previously, R.K. was CEO of PeriTec Biosciences Ltd., a medical device spin-off of the Cleveland Clinic Foundation.

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Eric Schaeffer

General Counsel

Eric Schaeffer is General Counsel to and serves on the Board of Managers of Black Beret Life Sciences, LLC. He also currently serves as President and General Counsel of Capital Technologies, Inc., and the Bosarge Family Office. Prior to joining the Bosarge Family Office in 2010, Mr. Schaeffer’s extensive business law practice included the areas of corporate and partnership law, mergers and acquisitions, real estate transactions, financing transactions, licensing transactions, and a myriad of other business transactions. In addition to representing established corporate clients, Mr. Schaeffer is particularly attuned to the needs of the entrepreneur.

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Warren Sherman, M.D., FACC

Chief Medical Officer

As Chief Medical Officer at BBLS, Dr. Sherman serves on the company's executive management team, providing strategic guidance in management and technology development focused on research and clinical activities.  Dr. Sherman's clinical, commercial and research expertise in the field of regenerative medicine adds tremendous value to BBLS. He will help drive the development of novel clinical protocols across our portfolio with special focus at Okyanos Center for Regenerative Medicine on Grand Bahama Island.

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Mark Benerofe

President & COO

Mark Benerofe is a highly sought after executive and consultant working in high tech, media and biotech companies. He has served in senior executive roles at Priceline, Sony, Microsoft, Prodigy and CNN, and has been a founder and advisor to numerous startups including Boxbe, Sony Online Entertainment and Match.com.

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Lori Butterfield

EVP Marketing & Communications

Lori Butterfield is a highly creative communications and marketing executive who brings a wealth of digital production expertise to her role at BBLS. She combines high level strategy with a hands-on approach to enhance the vision, mission and reputation of the BBLS portfolio of companies.

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Cathy Bartniski


A Certified Public Accountant with controller and accounting experience across a diverse set of industries doing business around the globe, Cathy joined BBLS in October 2016.  Her multi-disciplinary financial skills are a unique and valuable addition to the BBLS team providing financial strategy and oversight as Controller.  Cathy’s resume covers a range of industries as Controller: medical diagnostic testing, aerospace, petrochemicals, energy, logistics, technology infrastructure and security and venture capital.

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Ed Bosarge

Chairman & Founder

A passionate believer in the power of regenerative medicine to treat disease and to promote a longer, healthier life, W. E. "Ed" Bosarge has launched and supported a wide variety of research and development efforts. Dr. Bosarge founded Black Beret Life Sciences LLC to invest in game-changing biotechnology innovations. Since 2014, Black Beret Life Sciences has funded research for treatments based on regenerative medicine for cancer, diabetes, neurodegeneration, osteoarthritis, and other conditions related to aging.

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