PRAX - MRIN ALPN SMMT and LPTX among after hours movers September, 21 2021 05:47 PM Praxis Precision Medicines Inc. Gainers: MRIN +72.9%. ALPN +22.5%. SFIX +12.8%. PRAX +5.4%. LAUR +3.3%. Losers: SMMT -19.8%. LPTX -11.4%. BDSI -8.8%. BLU -5.2%. ATAX -4.2%. For further details see: MRIN, ALPN, SMMT and LPTX among after hours movers