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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
932111	Micrel Inc	MCRL	Semiconductors & Related Devices (3674)	942526744

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1276261	Guy James Gandenberger		Vp Ww Operations And Foundry	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
Common Stock	Acquisiton	2011-02-07	23,999	$10.72	32,787	No	4	M	Direct
Common Stock	Disposition	2011-02-07	23,999	$13.24	8,788	No	4	S	Direct
Common Stock	Acquisiton	2011-02-08	21,400	$10.72	30,188	No	4	M	Direct
Common Stock	Disposition	2011-02-08	21,400	$13.22	8,788	No	4	S	Direct
Common Stock	Acquisiton	2011-02-09	26,500	$11.43	35,288	No	4	M	Direct
Common Stock	Disposition	2011-02-09	26,500	$13.25	8,788	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-qual Stock Options	Disposition	2011-02-07	23,999	$10.72	23,999	$10.72
Common Stock	Non-qual Stock Options	Disposition	2011-02-08	21,400	$10.72	21,400	$10.72
Common Stock	Non-qual Stock Options	Disposition	2011-02-09	26,500	$11.43	26,500	$11.43

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
316,600	2004-06-13	2013-06-13	No	4	M	Direct
295,200	2004-06-13	2013-03-13	No	4	M	Direct
268,700	2006-09-26	2015-09-26	No	4	M	Direct

Footnotes

This transaction was executed in two trades at prices $13.25 and $13.30. The price reported above relects the weighted average sales price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request of the SEC staff, the issuer, or a security holder of the issuer.
Pursuant to the terms of the 2003 Incentive Award Plan, this option was granted on 06/13/2003 and vested annually at 20% per year over 5 years.
Pursuant to the terms of the 2003 Incentive Award Plan, this option was granted on 09/26/2005 and vested annually at 20% per year over 5 years.
This cashless exercise and sale of employee stock options is made pursuant to a domestic relations court order under which the reporting person will exercise and sell options to purchase approximately 235,100 shares of Micrel common stock.