89bio Inc. Common Stock. Replay the stock market charts of ETNB day by day, back to 2003. Open long and short positions without spending any money. 89bio, Inc., a clinical-stage biopharmaceutical company, focuses on the development and commercialization of therapies for the treatment of liver and cardio-metabolic diseases. Its lead product candidate is pegozafermin, a glycoPEGylated analog of fibroblast growth factor 21 for the treatment of nonalcoholic steatohepatitis. The company also intends to develop pegozafermin for the treatment of severe hypertriglyceridemia. 89bio, Inc. was incorporated in 2018 and is headquartered in San Francisco, California.