Bearish Signals

A trader bought 2,500 IRWD Nov 10 Puts for $0.58 (3.7 times usual volume) with stock at $10.59
A trader bought 1,060 LINTA Nov 26 Puts for $0.34 (3.2 times usual volume) with stock at $27.28
A trader bought 2,300 HMA Nov 12 Puts for $0.25 (5.8 times usual volume) with stock at $12.94
A trader bought 5,000 HPQ Jan 24 Puts for $1.85 with stock at $23.59