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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
833640	Power Integrations Inc	POWI	Semiconductors & Related Devices (3674)	943065014

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1182405	Balu Balakrishnan	5245 Hellyer Ave San Jose CA 95138	President And Ceo	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2013-07-15	17,925	$46.76	373,374	No	4	S	Indirect	by Trust
Common Stock	Disposition	2013-07-15	2,075	$47.51	371,299	No	4	S	Indirect	by Trust
Common Stock	Disposition	2013-07-15	30,000	$48.75	341,299	No	4	S	Indirect	by Trust
Common Stock	Acquisiton	2013-07-15	114,494	$17.18	455,793	No	4	M	Indirect	by Trust
Common Stock	Disposition	2013-07-15	13,203	$45.21	442,590	No	4	S	Indirect	by Trust
Common Stock	Disposition	2013-07-15	7,605	$46.49	434,985	No	4	S	Indirect	by Trust
Common Stock	Disposition	2013-07-15	69,192	$47.41	365,793	No	4	S	Indirect	by Trust
Common Stock	Disposition	2013-07-15	24,494	$49.90	341,299	No	4	S	Indirect	by Trust

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust
No	4	M	Indirect	by Trust
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2013-07-15	114,494	$0.00	114,494	$17.18

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2005-01-24	2015-01-24	No	4	M	Indirect

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	108,788	Direct

Footnotes

This sale is pursuant to a 10B5-1 Sales Plan
The range of prices for the enclosed transactions were $46.42 to $47.39.Upon request by the SEC staff, the issuer, or any security holder of the issuer we will provide full information regarding the number of shares sold at each separate price.
The range of prices for the enclosed transactions were $47.44 to $47.60.Upon request by the SEC staff, the issuer, or any security holder of the issuer we will provide full information regarding the number of shares sold at each separate price.
The range of prices for the enclosed transactions were $44.85 to $45.83Upon request by the SEC staff, the issuer, or any security holder of the issuer we will provide full information regarding the number of shares sold at each separate price.
The range of prices for the enclosed transactions were $45.88 to $46.83Upon request by the SEC staff, the issuer, or any security holder of the issuer we will provide full information regarding the number of shares sold at each separate price.
The range of prices for the enclosed transactions were $46.93 to $47.60.Upon request by the SEC staff, the issuer, or any security holder of the issuer we will provide full information regarding the number of shares sold at each separate price.