A. Robert Klosterboer

Insider Trading: Sales

Company	Symbol	Price	Amount	Relationship	Remaining Holdings	Date	Form 4
On Semiconductor Corp	ONNN	$7.67	5,000	Officer	83,605	2011-11-22	Filing
On Semiconductor Corp	ONNN	$7.27	5,000	Officer	88,605	2011-11-21	Filing
On Semiconductor Corp	ONNN	$10.45	3,000	Officer	69,469	2011-06-09	Filing
On Semiconductor Corp	ONNN	$11.75	5,000	Officer	72,469	2011-05-12	Filing
On Semiconductor Corp	ONNN	$11.75	5,000	Officer	77,469	2011-05-12	Filing
On Semiconductor Corp	ONNN	$11.47	5,000	Officer	77,469	2011-05-09	Filing
On Semiconductor Corp	ONNN	$11.47	5,000	Officer	82,469	2011-05-09	Filing
On Semiconductor Corp	ONNN	$11.00	2,989	Officer	68,512	2011-05-05	Filing
On Semiconductor Corp	ONNN	$9.77	1,967	Officer	71,501	2011-04-07	Filing
On Semiconductor Corp	ONNN	$10.16	3,629	Officer	73,468	2011-03-14	Filing
On Semiconductor Corp	ONNN	$11.20	18,332	Officer	52,697	2011-02-10	Filing
On Semiconductor Corp	ONNN	$11.20	943	Officer	71,029	2011-02-10	Filing
On Semiconductor Corp	ONNN	$11.73	30,000	Officer	53,640	2011-02-07	Filing
On Semiconductor Corp	ONNN	$11.50	4,030	Officer	53,640	2011-01-13	Filing
On Semiconductor Corp	ONNN	$8.47	15,000	Officer	57,670	2010-12-01	Filing
On Semiconductor Corp	ONNN	$8.69	12,982	Officer	72,670	2010-12-01	Filing
On Semiconductor Corp	ONNN	$7.95	3,000	Officer	24,321	2010-05-12	Filing
On Semiconductor Corp	ONNN	$7.79	3,000	Officer	27,321	2010-05-10	Filing
On Semiconductor Corp	ONNN	$7.25	3,000	Officer	30,321	2010-05-07	Filing
On Semiconductor Corp	ONNN	$8.31	7,500	Officer	19,181	2010-03-02	Filing