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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1038074	Silicon Laboratories Inc	SLAB	Semiconductors & Related Devices (3674)	742793174

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1255711	G Laurence Walker	22 Normandie Rd Dover PA 02030		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock, $0.0001 Par Value	Acquisiton	2014-02-10	2,500	$31.77	2,539	No	4	M	Direct
Common Stock, $0.0001 Par Value	Disposition	2014-02-10	2,500	$46.79	39	No	4	S	Direct
Common Stock, $0.0001 Par Value	Disposition	2014-02-11	2,000	$46.90	13,385	No	4	S	Indirect	L.G. Walker 2001 Revocable Trust uad 02/15/01 L.G. Walker TTEE

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct
No	4	S	Indirect	L.G. Walker 2001 Revocable Trust uad 02/15/01 L.G. Walker TTEE

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock, $0.0001 Par Value	Non-Qualified Stock Option (right to buy)	Disposition	2014-02-10	2,500	$0.00	2,500	$31.77

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
2,500	2004-12-10	2014-12-10	No	4	M	Direct

Footnotes

Price represents the weighted average selling price. Prices range between $46.75 and $46.84.
Price represents the weighted average selling price. Prices range between $46.84 and $46.94.
These shares are held in a trust for the benefit of Reporting Person. Reporting Person is trustee of the trust.
Option is immediately exercisable but the shares vest upon the Optionee's completion of one year of board service measured from the grant date.
Not applicable per instruction 4(c)(iii).