POWER INTEGRATIONS INC

Ticker: POWI CUSIP: 739276103 Class: Common Stock

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

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

Q2 2020

Shares 32,534 Value ($000) $3,843 Avg Close $49.57 Range $37.10 - $57.79

Q1 2020

Shares 31,464 Value ($000) $2,779 Avg Close $45.43 Range $36.34 - $52.44

Q4 2019

Shares 54,575 Value ($000) $5,398 Avg Close $43.28 Range $39.70 - $46.87

Q3 2019

Shares 51,398 Value ($000) $4,648 Avg Close $40.65 Range $35.95 - $47.94

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2020	32,534	$3,843	$49.57	$37.10 - $57.79
Q1 2020	31,464	$2,779	$45.43	$36.34 - $52.44
Q4 2019	54,575	$5,398	$43.28	$39.70 - $46.87
Q3 2019	51,398	$4,648	$40.65	$35.95 - $47.94