2 hrs in 5/1/17

The put trade, at or above the ask, was 255 puts, May 17 expiration, $7.50 strike.  Someone positioning a long put covering 25,500 shs to either protect a long position, or to profit if OPKO breaks support in low $7.

This trade was not likely a seller of a long put position, since the trade took place at or above the ask.