SILICON LABORATORIES INC. — Director's Dealing 2010

Jul 13, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SILICON LABORATORIES INC (SLAB)
CIK: 0001038074
Period of Report: 2010-07-13

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-07-13	Common Stock, $0.0001 par value	M	375	$24.3	Acquired	125547	Direct
2010-07-13	Common Stock, $0.0001 par value	S	5000	$43.25	Disposed	120547	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-07-13	Non-Qualified Stock Option (right to buy)	$24.3	M	375	Disposed	2012-06-13	Common Stock, $0.0001 par value (375)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $0.0001 par value	8850	Indirect
Common Stock, $0.0001 par value	8850	Indirect
Common Stock, $0.0001 par value	8850	Indirect
Common Stock, $0.0001 par value	8850	Indirect

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.

F3: These shares are held in a trust for the benefit of Reporting Person's child. Reporting Person is co-trustee of the trust.

F4: Option becomes exercisable as it vests in a series of twelve (12) successive equal monthly installments measured from the date exercisable.

F5: Not applicable per instruction 4(c)(iii).