POWER INTEGRATIONS INC

Ticker: POWI CUSIP: 739276103 Class: Common Stock

ARDSLEY ADVISORY PARTNERS LP's Holding History (CIK: 0000900529)

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

Q2 2017

Shares 7,000 Value ($000) $510 Avg Close $30.45 Range $28.41 - $34.96

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	7,000	$510	$30.45	$28.41 - $34.96