SILICON LABORATORIES INC. — Director's Dealing 2015

May 11, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SILICON LABORATORIES INC (SLAB)
CIK: 0001038074
Period of Report: 2015-05-08

Reporting Person: WALKER LAURENCE G (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-08	Common Stock, $0.0001 par value	M	2500	$39.16	Acquired	15611	Direct
2015-05-08	Common Stock, $0.0001 par value	M	5000	$34.68	Acquired	20611	Direct
2015-05-08	Common Stock, $0.0001 par value	M	5000	$32.29	Acquired	25611	Direct
2015-05-08	Common Stock, $0.0001 par value	M	5000	$38.2	Acquired	30611	Direct
2015-05-08	Common Stock, $0.0001 par value	M	5000	$33.85	Acquired	35611	Direct
2015-05-08	Common Stock, $0.0001 par value	M	5000	$21.13	Acquired	40611	Direct
2015-05-08	Common Stock, $0.0001 par value	S	27500	$51.217	Disposed	13111	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-05-08	Non-Qualified Stock Option (right to buy)	$39.16	M	2500	Disposed	2015-12-09	Common Stock, $0.0001 par value (2500)	Direct
2015-05-08	Non-Qualified Stock Option (right to buy)	$34.68	M	5000	Disposed	2016-12-14	Common Stock, $0.0001 par value (5000)	Direct
2015-05-08	Non-Qualified Stock Option (right to buy)	$32.29	M	5000	Disposed	2017-04-19	Common Stock, $0.0001 par value (5000)	Direct
2015-05-08	Non-Qualified Stock Option (right to buy)	$38.2	M	5000	Disposed	2017-12-07	Common Stock, $0.0001 par value (5000)	Direct
2015-05-08	Non-Qualified Stock Option (right to buy)	$33.85	M	5000	Disposed	2018-04-24	Common Stock, $0.0001 par value (5000)	Direct
2015-05-08	Non-Qualified Stock Option (right to buy)	$21.13	M	5000	Disposed	2018-12-12	Common Stock, $0.0001 par value (5000)	Direct

Footnotes

F1: Price represents the weighted average selling price. Prices range between $51.00 and $51.72 per share.

F2: Option is immediately exercisable but the shares vest upon the Optionee's completion of one year of board service measured from the grant date.

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