L John Piotrowski

Insider Trading: Sales

Company	Symbol	Price	Amount	Relationship	Remaining Holdings	Date	Form 4
Semtech Corp	SMTC	$19.18	1,300	Director	211	2010-09-21	Filing
Semtech Corp	SMTC	$19.17	400	Director	1,511	2010-09-21	Filing
Semtech Corp	SMTC	$19.16	215	Director	1,911	2010-09-21	Filing
Semtech Corp	SMTC	$19.16	2,300	Director	2,126	2010-09-21	Filing
Semtech Corp	SMTC	$19.16	400	Director	4,426	2010-09-21	Filing
Semtech Corp	SMTC	$19.15	1,000	Director	4,826	2010-09-21	Filing
Semtech Corp	SMTC	$19.15	2,100	Director	5,826	2010-09-21	Filing
Semtech Corp	SMTC	$19.15	700	Director	7,926	2010-09-21	Filing
Semtech Corp	SMTC	$19.15	200	Director	8,626	2010-09-21	Filing
Semtech Corp	SMTC	$19.14	1,200	Director	8,826	2010-09-21	Filing
Semtech Corp	SMTC	$19.13	1,600	Director	10,026	2010-09-21	Filing
Semtech Corp	SMTC	$19.13	200	Director	11,626	2010-09-21	Filing
Semtech Corp	SMTC	$19.13	400	Director	11,826	2010-09-21	Filing
Semtech Corp	SMTC	$19.12	300	Director	12,226	2010-09-21	Filing
Semtech Corp	SMTC	$19.12	1,400	Director	12,526	2010-09-21	Filing
Semtech Corp	SMTC	$19.11	519	Director	13,926	2010-09-21	Filing
Semtech Corp	SMTC	$19.10	5	Director	14,445	2010-09-21	Filing