POWER INTEGRATIONS INC

Ticker: POWI CUSIP: 739276103 Class: Common Stock

Cornerstone Investment Partners, LLC's Holding History (CIK: 0001328062)

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

Q3 2021

Shares 2,500 Value ($000) $247 Avg Close $92.08 Range $72.50 - $105.27

Q2 2021

Shares 3,100 Value ($000) $254 Avg Close $76.63 Range $69.29 - $83.54

Q1 2021

Shares 3,100 Value ($000) $253 Avg Close $82.50 Range $71.90 - $93.83

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	2,500	$247	$92.08	$72.50 - $105.27
Q2 2021	3,100	$254	$76.63	$69.29 - $83.54
Q1 2021	3,100	$253	$82.50	$71.90 - $93.83