SILICON LABORATORIES INC. — Director's Dealing 2012

Dec 13, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SILICON LABORATORIES INC (SLAB)
CIK: 0001038074
Period of Report: 2012-12-11

Reporting Person: IVESTER JONATHAN D (Sr VP of Worldwide Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-12-11	Common Stock, $0.0001 par value	M	3000	$31.96	Acquired	84888	Direct
2012-12-11	Common Stock, $0.0001 par value	S	3000	$42.27	Disposed	81888	Direct
2012-12-11	Common Stock, $0.0001 par value	S	900	$42.27	Disposed	850	Indirect
2012-12-11	Common Stock, $0.0001 par value	S	900	$42.27	Disposed	850	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-12-11	Non-Qualified Stock Option (right to buy)	$31.96	M	3000	Disposed	2018-02-15	Common Stock, $0.0001 par value (3000)	Direct

Footnotes

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

F2: These shares are held in a trust for the benefit of Reporting Person's child. Reporting Person is co-trustee of the trust.

F3: Option vests and becomes exercisable with respect to (i) twenty-five percent (25%) of the option shares upon the date exercisable and (ii) the balance of the option shares in series of thirty-six (36) successive monthly installments over the thirty-six (36) month period measured from the date exercisable.

F4: Not applicable per instruction 4(c)(iii).