Sientra Inc. (NASDAQ:SIEN) was upgraded by Zacks Investment Research from a “sell” rating to a “hold” rating in a report issued on Thursday. According to Zacks, “Sientra, Inc. is a medical aesthetics company. The Company offers plastic surgery implantable devices for cosmetic and reconstructive surgery, including Breast Implants, Tissue Expanders, Body Contouring, Implants and Specialty […]
