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Filing Details

Accession Number:: 0001413753-10-000082
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-09-24 19:33:46
Reporting Period:: 2010-09-23

Filing Date:: 2010-09-24
Accepted Time:: 2010-09-24 19:33:46
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
88941	Semtech Corp	SMTC	Semiconductors & Related Devices (3674)	952119684

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1388432	Jungsup James Kim	200 Flynn Road Camarillo CA 93012-8790	Senior Vice President	No	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2010-09-23	15,000	$15.38	31,996	No	4	M	Direct
Common Stock	Disposition	2010-09-23	193	$19.02	31,803	No	4	S	Direct
Common Stock	Disposition	2010-09-23	500	$19.03	31,303	No	4	S	Direct
Common Stock	Disposition	2010-09-23	700	$19.03	30,603	No	4	S	Direct
Common Stock	Disposition	2010-09-23	900	$19.04	29,703	No	4	S	Direct
Common Stock	Disposition	2010-09-23	400	$19.04	29,303	No	4	S	Direct
Common Stock	Disposition	2010-09-23	311	$19.06	28,992	No	4	S	Direct
Common Stock	Disposition	2010-09-23	400	$19.07	28,592	No	4	S	Direct
Common Stock	Disposition	2010-09-23	500	$19.07	28,092	No	4	S	Direct
Common Stock	Disposition	2010-09-23	200	$19.08	27,892	No	4	S	Direct
Common Stock	Disposition	2010-09-23	300	$19.08	27,592	No	4	S	Direct
Common Stock	Disposition	2010-09-23	400	$19.08	27,192	No	4	S	Direct
Common Stock	Disposition	2010-09-23	100	$19.10	27,092	No	4	S	Direct
Common Stock	Disposition	2010-09-23	202	$19.10	26,890	No	4	S	Direct
Common Stock	Disposition	2010-09-23	200	$19.10	26,690	No	4	S	Direct
Common Stock	Disposition	2010-09-23	103	$19.10	26,587	No	4	S	Direct
Common Stock	Disposition	2010-09-23	200	$19.11	26,387	No	4	S	Direct
Common Stock	Disposition	2010-09-23	600	$19.11	25,787	No	4	S	Direct
Common Stock	Disposition	2010-09-23	1,500	$19.11	24,287	No	4	S	Direct
Common Stock	Disposition	2010-09-23	1,100	$19.11	23,187	No	4	S	Direct
Common Stock	Disposition	2010-09-23	200	$19.12	22,987	No	4	S	Direct
Common Stock	Disposition	2010-09-23	200	$19.12	22,787	No	4	S	Direct
Common Stock	Disposition	2010-09-23	700	$19.12	22,087	No	4	S	Direct
Common Stock	Disposition	2010-09-23	300	$19.13	21,787	No	4	S	Direct
Common Stock	Disposition	2010-09-23	200	$19.13	21,587	No	4	S	Direct
Common Stock	Disposition	2010-09-23	700	$19.13	20,887	No	4	S	Direct
Common Stock	Disposition	2010-09-23	1,691	$19.13	19,196	No	4	S	Direct
Common Stock	Disposition	2010-09-23	100	$19.14	19,096	No	4	S	Direct
Common Stock	Disposition	2010-09-23	200	$19.14	18,896	No	4	S	Direct
Common Stock	Disposition	2010-09-23	200	$19.15	18,696	No	4	S	Direct

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

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Options (right to buy)	Disposition	2010-09-23	15,000	$0.00	15,000	$15.38

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2010-12-22	No	4	M	Direct

Footnotes

This option vested in four equal annual installments beginning on December 22, 2001.