4D Molecular Therapeutics, Inc. engages in the design, development, and commercialization of transformative gene therapeutic products for serious unmet medical conditions. It offers products for ophthalmology, cardiology, and pulmonology. The company was founded by David H. Kirn, Melissa Kotterman, Theresa Janke, and David Schaffer on September 12, 2013 and is headquartered in Emeryville, CA.