0001418215-11-000028.txt : 20110425 0001418215-11-000028.hdr.sgml : 20110425 20110425170804 ACCESSION NUMBER: 0001418215-11-000028 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110421 FILED AS OF DATE: 20110425 DATE AS OF CHANGE: 20110425 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: WOOD WILLIAM P CENTRAL INDEX KEY: 0001250012 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-29823 FILM NUMBER: 11778020 MAIL ADDRESS: STREET 1: 1000 RIO GRANDE CITY: AUSTIN STATE: TX ZIP: 78701 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 4 1 primary_doc.xml PRIMARY DOCUMENT X0303 4 2011-04-21 0 0001038074 SILICON LABORATORIES INC SLAB 0001250012 WOOD WILLIAM P 1000 RIO GRANDE AUSTIN TX 78701 1 0 0 0 Common Stock, $0.0001 par value 2011-04-21 4 A 0 3535 0.0001 A 16845 D Common Stock, $0.0001 par value 105776 I by Silverton Partners, LP Reflects the grant of restricted stock units (RSUs) that will entitle Reporting Person to receive one share of common stock per RSU. The RSUs will vest completely on the earlier of (i) the first (1st) anniversary of the date of grant, and (ii) the date one day prior to the Annual Shareholders' Meeting in the year following the grant date. The grant will be settled pursuant to the terms of the Issuer's 2009 Stock Incentive Plan. Reporting Person is a general partner of Silverton Partners, LP. Reporting Person may be deemed a beneficial owner of the shares held by Silverton Partners, LP, but disclaims beneficial ownership in the shares held by Silverton Partners, LP, except to the extent of any indirect pecuniary interest therein. Bruce A. Maurer for William P. Wood 2011-04-25