X0202 4 2004-05-26 0 0001094895 AVICI SYSTEMS INC AVCI 0001182381 LIEBHABER RICHARD C/O AVICI SYSTEMS INC. 101 BILLERICA AVENUE NORTH BILLERICA MA 01862 1 0 0 0 Stock Option (Right to Purchase) 10.63 2004-05-26 4 A 0 3750 0 A 2014-05-26 Common Stock 3750 3750 D 1,250 shares of the option vest on the grant date and an additional 625 shares of the option vest in each of the next four years on the anniversary of the grant date, or if earlier, the day immediately prior to the annual meeting date in each particular year the installment vests. Richard Liebhaber 2004-05-27