Paper bought 1,081 CLSN Jun 2 Puts for $0.40 (11 times usual volume) with stock at $1.86
Paper bought 4,000 MRVL Jun 11 Puts for $0.37 (2.6 times usual volume) with stock at $11.25
Paper bought 500 MRO Jun 33 Puts for $0.33 (3.9 times usual volume) with stock at $35.12
Paper bought 2,000 Sep 155 Puts for $1.55 (9.6 times usual volume) with stock at $180.02