Dr. Keirstead is an internationally known stem cell expert and serial entrepreneur that led the development of a treatment that restored movement and sensory function to people with quadriplegic spinal cord injury, and a treatment for cancer that has saved the lives of people with melanoma, brain cancer and ovarian cancer. He has also led therapy development for immune disorders, motor neuron diseases and retinal diseases, as well as a vaccine for COVID-19. He has founded 4 successful biotechnology companies, each returning significant value to investors and treatments to patients. Every one of his prior companies has sold to large or mid-sized pharmaceutical companies for 2.5X-9.5X returns to investors, after return of investment capital. Dr. Keirstead holds Board positions in several prominent biotechnology companies.