PRA - AAOI HEAR RIOT and BLCM among midday movers May, 08 2020 12:44 PM ProAssurance Corporation Gainers: Protagonist Therapeutics (NASDAQ:PTGX) +74%.More news on: Protagonist Therapeutics, Inc., Everspin Technologies, Inc., American Axle & Manufacturing Holdings, Inc., Stocks on the move, , Read more ...