0001576021-15-000012.txt : 20150225 0001576021-15-000012.hdr.sgml : 20150225 20150225174359 ACCESSION NUMBER: 0001576021-15-000012 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20150224 FILED AS OF DATE: 20150225 DATE AS OF CHANGE: 20150225 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: SILICON LABORATORIES INC CENTRAL INDEX KEY: 0001038074 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] IRS NUMBER: 742793174 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 400 W CESAR CHAVEZ CITY: AUSTIN STATE: TX ZIP: 78701 BUSINESS PHONE: 5124168500 MAIL ADDRESS: STREET 1: 400 W CESAR CHAVEZ CITY: AUSTIN STATE: TX ZIP: 78701 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: BOCK WILLIAM G CENTRAL INDEX KEY: 0001197848 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-29823 FILM NUMBER: 15649158 MAIL ADDRESS: STREET 1: 400 WEST CESAR CHAVEZ CITY: AUSTIN STATE: TX ZIP: 78701 4 1 primary_doc.xml PRIMARY DOCUMENT X0306 4 2015-02-24 0 0001038074 SILICON LABORATORIES INC SLAB 0001197848 BOCK WILLIAM G 400 WEST CESAR CHAVEZ AUSTIN TX 78701 1 1 0 0 President Common Stock, $0.0001 par value 2015-02-24 4 M 0 5000 32.11 A 84030 D Common Stock, $0.0001 par value 2015-02-24 4 S 0 5000 50.5 D 79030 D Non-Qualified Stock Option (right to buy) 32.11 2015-02-24 4 M 0 5000 D 2008-02-15 2017-02-15 Common Stock, $0.0001 par value 5000 0 D Shares sold pursuant to Reporting Person's 10b5-1 Trading Plan. Option vests and becomes exercisable with respect to (i) twenty percent (20%) of the option shares upon the date exercisable and (ii) the balance of the option shares in a series of forty-eight (48) successive monthly installments over the forty-eight (48) month period measured from the date exercisable. Not applicable per instruction 4(c)(iii). Saie-Yau Hui for William G Bock 2015-02-25