SILICON LABORATORIES INC

Ticker: SLAB CUSIP: 826919102 Class: Common Stock

Artisan Partners Limited Partnership's Holding History (CIK: 0001466153)

Note: Option positions (PUT/CALL) are excluded.

Q2 2013

Shares 11,400 Value ($000) $472,074 Avg Close $41.29 Range $38.04 - $44.00

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2013	11,400	$472,074	$41.29	$38.04 - $44.00