Thinking about buying stock in Sellas Life Sciences Group, Silk Road Medical, Hyliion Holdings, 89bio, or OpGen? PR Newswire NEW YORK, Oct. 12, 2023 NEW YORK , Oct. 12, 2023 /PRNewswire/ -- InvestorsObserver issues critical PriceWatch Alerts for SLS, SILK, HYLN, ETNB, and OPGN. To see how InvestorsObserver's proprietary scoring system rates these stocks, view the InvestorsObserver's PriceWatch Alert by selecting the corresponding link. SLS:...