SILICON LABORATORIES INC

Ticker: SLAB CUSIP: 826919102 Class: Common Stock

WASATCH ADVISORS LP's Holding History (CIK: 0000814133)

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

Q4 2015

Shares 433,034 Value ($000) $21,019 Avg Close $49.45 Range $40.03 - $54.72

Q3 2015

Shares 438,877 Value ($000) $18,231 Avg Close $45.65 Range $39.33 - $55.08

Q2 2015

Shares 458,095 Value ($000) $24,742 Avg Close $53.48 Range $49.62 - $58.54

Q1 2015

Shares 466,888 Value ($000) $23,704 Avg Close $48.54 Range $42.61 - $52.83

Q4 2014

Shares 466,594 Value ($000) $22,219 Avg Close $44.13 Range $36.29 - $48.50

Q3 2014

Shares 505,875 Value ($000) $20,559 Avg Close $43.99 Range $39.28 - $50.05

Q2 2014

Shares 783,998 Value ($000) $38,612 Avg Close $47.57 Range $42.41 - $53.78

Q1 2014

Shares 790,728 Value ($000) $41,316 Avg Close $48.31 Range $41.19 - $54.00

Q4 2013

Shares 797,362 Value ($000) $34,534 Avg Close $40.96 Range $37.57 - $44.19

Q3 2013

Shares 896,631 Value ($000) $38,295 Avg Close $41.35 Range $38.16 - $46.21

Q2 2013

Shares 985,896 Value ($000) $40,826 Avg Close $41.29 Range $38.04 - $44.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	433,034	$21,019	$49.45	$40.03 - $54.72
Q3 2015	438,877	$18,231	$45.65	$39.33 - $55.08
Q2 2015	458,095	$24,742	$53.48	$49.62 - $58.54
Q1 2015	466,888	$23,704	$48.54	$42.61 - $52.83
Q4 2014	466,594	$22,219	$44.13	$36.29 - $48.50
Q3 2014	505,875	$20,559	$43.99	$39.28 - $50.05
Q2 2014	783,998	$38,612	$47.57	$42.41 - $53.78
Q1 2014	790,728	$41,316	$48.31	$41.19 - $54.00
Q4 2013	797,362	$34,534	$40.96	$37.57 - $44.19
Q3 2013	896,631	$38,295	$41.35	$38.16 - $46.21
Q2 2013	985,896	$40,826	$41.29	$38.04 - $44.00