POWER INTEGRATIONS INC

Ticker: POWI CUSIP: 739276103 Class: Common Stock

BAMCO INC /NY/'s Holding History (CIK: 0001017918)

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

Q4 2014

Shares 13,500 Value ($000) $698 Avg Close $22.81 Range $19.04 - $25.19

Q3 2014

Shares 21,200 Value ($000) $1,143 Avg Close $25.20 Range $22.98 - $28.86

Q2 2014

Shares 10,400 Value ($000) $598 Avg Close $24.97 Range $16.99 - $30.03

Q1 2014

Shares 8,490 Value ($000) $558 Avg Close $27.03 Range $24.11 - $30.73

Q4 2013

Shares 4,000 Value ($000) $223 Avg Close $24.04 Range $22.49 - $26.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2014	13,500	$698	$22.81	$19.04 - $25.19
Q3 2014	21,200	$1,143	$25.20	$22.98 - $28.86
Q2 2014	10,400	$598	$24.97	$16.99 - $30.03
Q1 2014	8,490	$558	$27.03	$24.11 - $30.73
Q4 2013	4,000	$223	$24.04	$22.49 - $26.82