Stock Trading History of Norris Peter

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Norris Peter since year 2005. The trader's CIK number is 1230576. At the time of this reporting, Norris Peter is the EXEC VP, STRATEGIC BUS DEVELOP of Komag Inc /de/ (stock ticker symbol KOMG).

Stock purchases, sales, and option exercises reported by *Norris Peter* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-02-28	KOMG	Komag Inc /de/	Option Exercise	3,894	.01	38
2006-11-09	KOMG	Komag Inc /de/	Option Exercise	2,838	9.82	27,869
2006-11-09	KOMG	Komag Inc /de/	Sale	2,838	40.00	113,520
2006-11-06	KOMG	Komag Inc /de/	Sale	5,000	38.00	189,978
2006-11-01	KOMG	Komag Inc /de/	Option Exercise	12,500	.00	0
2006-05-08	KOMG	Komag Inc /de/	Sale	1,047	44.65	46,748
2006-05-08	KOMG	Komag Inc /de/	Option Exercise	1,047	18.85	19,735
2006-03-08	KOMG	Komag Inc /de/	Option Exercise	12,000	.01	120
2006-02-27	KOMG	Komag Inc /de/	Sale	100	47.95	4,795
2006-02-27	KOMG	Komag Inc /de/	Option Exercise	3,127	9.82	30,707
2006-02-27	KOMG	Komag Inc /de/	Sale	15,527	47.44	736,660

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Norris Peter (EXEC VP, STRATEGIC BUS DEVELOP of Komag Inc /de/ at the time of this reporting) see the Securities and Exchange Commission (SEC) website.