Notable Monday Option Activity: REPH, PRI, MRNS

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Recro Pharma, Inc (REPH), where a total of 512 contracts have traded so far, representing approximately 51,200 underlying shares. That amounts to about 45.8% of REPH's average daily trading volume over the past month of 111,890 shares..