X0201 4 2003-08-18 0 0001038074 SILICON LABORATORIES INC SLAB 0001134855 SOOCH NAVDEEP S 4635 BOSTON LANE AUSTIN TX 78735 1 1 1 0 Chairman & CEO Non-Qualified Stock Option (right to buy) 38.5 2003-08-18 4 A 0 20000 0 A 2004-08-18 2013-08-18 Common Stock 20000 20000 D Option vests and becomes exercisable with respect to (i) twenty percent (20%) of the option shares upon optionee's completion of one year of service measured from the grant date and (ii) the balance of the option shares in a series of forty-eight (48) successive equal monthly installments over the forty-eight (48) month period measured from the first year anniversary of the grant date. Not applicable per instruction 4(c)(iii). Navdeep S. Sooch 2003-08-20