Brief: Silicom Q4 Gross Profit USD -4.494 Mln
Feb 1 (Reuters) - Silicom Q4 pretax profit USD -11.955 million. * Q4 net income USD -11.509 million * Q4 operating income USD -12.126 million * Q4 gross profit USD -4.494 million * Q4 operating expenses USD 7.632 million * Q4 sales USD 18.763 million