SILICON LABORATORIES INC. — Director's Dealing 2010

Apr 19, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SILICON LABORATORIES INC (SLAB)
CIK: 0001038074
Period of Report: 2010-04-15

Reporting Person: Sayiner Necip (Director, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-04-15	Common Stock, $0.0001 par value	M	45000	$32.27	Acquired	366859	Direct
2010-04-15	Common Stock, $0.0001 par value	S	55000	$52.52	Disposed	311859	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-04-15	Non-Qualified Stock Option (right to buy)	$32.27	M	45000	Disposed	2015-09-14	Common Stock, $0.0001 par value (45000)	Direct

Footnotes

F1: Shares sold pursuant to Reporting Person's 10b5-1 Trading Plan.

F2: 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.

F3: Not applicable per instruction 4(c)(iii).