SILICON LABORATORIES INC

Ticker: SLAB CUSIP: 826919102 Class: Common Stock

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q4 2019

Shares 34,057 Value ($000) $3,950 Avg Close $109.67 Range $101.93 - $117.39

Q2 2017

Shares 33,798 Value ($000) $2,310 Avg Close $72.28 Range $66.85 - $78.45

Q1 2017

Shares 35,843 Value ($000) $2,636 Avg Close $69.95 Range $63.15 - $75.60

Q4 2016

Shares 65,942 Value ($000) $4,286 Avg Close $62.93 Range $55.97 - $68.95

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	34,057	$3,950	$109.67	$101.93 - $117.39
Q2 2017	33,798	$2,310	$72.28	$66.85 - $78.45
Q1 2017	35,843	$2,636	$69.95	$63.15 - $75.60
Q4 2016	65,942	$4,286	$62.93	$55.97 - $68.95