Vivani Medical Inc. Common Stock (DE). Replay the stock market charts of VANI day by day, back to 2003. Open long and short positions without spending any money. Vivani Medical, Inc., a clinical stage company, develops various implants that treat chronic diseases with high unmet medical need. It engages in developing a portfolio of miniature drug implants to deliver minimally fluctuating drug profiles; and implantable visual prostheses devices to deliver useful artificial vision to blind individuals. The company is headquartered in Emeryville, California.