POWER INTEGRATIONS INC

Ticker: POWI CUSIP: 739276103 Class: Common Stock

LORD, ABBETT & CO. LLC's Holding History (CIK: 0000728100)

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

Q1 2014

Shares 927,019 Value ($000) $60,979 Avg Close $27.03 Range $24.11 - $30.73

Q4 2013

Shares 781,170 Value ($000) $43,605 Avg Close $24.04 Range $22.49 - $26.82

Q3 2013

Shares 497,462 Value ($000) $26,938 Avg Close $23.02 Range $17.96 - $25.46

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	927,019	$60,979	$27.03	$24.11 - $30.73
Q4 2013	781,170	$43,605	$24.04	$22.49 - $26.82
Q3 2013	497,462	$26,938	$23.02	$17.96 - $25.46