SILICON LABORATORIES INC. — Director's Dealing 2012

Jan 20, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SILICON LABORATORIES INC (SLAB)
CIK: 0001038074
Period of Report: 2012-01-18

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-01-18	Common Stock, $0.0001 par value	M	25000	$32.27	Acquired	294356	Direct
2012-01-18	Common Stock, $0.0001 par value	S	29500	$44.82	Disposed	264856	Direct
2012-01-18	Common Stock, $0.0001 par value	S	800	$43.5413	Disposed	264056	Direct
2012-01-18	Common Stock, $0.0001 par value	S	2635	$44.171	Disposed	261421	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-01-18	Non-Qualified Stock Option (right to buy)	$32.27	M	25000	Disposed	2015-09-14	Common Stock, $0.0001 par value (25000)	Direct

Footnotes

F1: Includes shares purchased by Reporting Person through the Issuer's 2009 Employee Stock Purchase Plan on the Plan's two most recent semi-annual purchase dates.

F2: Shares sold pursuant to Reporting Person's 10b5-1 Trading Plan.

F3: Price represents the weighted average selling price. Prices range between $42.78 and $43.77.

F4: Price represents the weighted average selling price. Prices range between $43.80 and $44.65.

F5: 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.

F6: Not applicable per instruction 4(c)(iii).