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Filing Details

Accession Number:: 0001181431-11-049486
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2011-09-15 20:04:18
Reporting Period:: 2011-09-13

Filing Date:: 2011-09-15
Accepted Time:: 2011-09-15 20:04:18
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1387467	Alpha & Omega Semiconductor Ltd	AOSL	Semiconductors & Related Devices (3674)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1199039	A Mark Stevens	C/O Sequoia Capital 3000 Sand Hill Road, 4-250 Menlo Park CA 94025		Yes	No	Yes	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Shares	Acquisiton	2011-09-13	5,000	$7.88	5,000	No	4	P	Indirect	By Third Millennium Trust
Common Shares	Acquisiton	2011-09-14	7,600	$8.04	12,600	No	4	P	Indirect	By Third Millennium Trust
Common Shares	Disposition	2011-09-14	2,200	$8.00	14,800	No	4	P	Indirect	By Third Millennium Trust
Common Shares	Disposition	2011-09-15	7,400	$8.36	22,200	No	4	P	Indirect	By Third Millennium Trust
Common Shares	Disposition	2011-09-15	17,800	$8.35	40,000	No	4	P	Indirect	By Third Millennium Trust

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	By Third Millennium Trust
No	4	P	Indirect	By Third Millennium Trust
No	4	P	Indirect	By Third Millennium Trust
No	4	P	Indirect	By Third Millennium Trust
No	4	P	Indirect	By Third Millennium Trust

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Shares	2,823,300	Indirect	By Sequoia Capital Growth Fund III AIV LP
Common Shares	145,800	Indirect	By Sequoia Capital Growth III Principals Fund
Common Shares	30,900	Indirect	By Sequoia Capital Growth Partners III LP

Footnotes

The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $7.77 to $7.90, inclusive. The reporting person undertakes to provide to Alpha and Omega Semiconductor Limited, any security holder of Alpha and Omega Semiconductor Limited, or the staff of the Securities and Exchange Commission, upon requet, full information regarding the number of shares acquired at each separate price within the ranges set forth in footnotes (1), (2), (3), (4) and (5) to this Form 4.
The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $7.94 to $8.23, inclusive.
The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $7.98 to $8.02, inclusive.
The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $8.29 to $8.43, inclusive.
The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $8.24 to $8.44, inclusive.
The reporting person and his wife are co-trustees of Third Millennium Trust.
The reporting person and his wife are co-trustees of Third Millenium Trust, which is a non-managing member of SCGF Management LLC ("SCGF LLC"), which is the general partner of each of Sequoia Capital Growth Fund III AIV L.P. and Sequoia Capital Growth Partners III, L.P., and the managing member of Sequoia Capital Growth III Principals Fund (collectively, the "Sequoia Funds"). The reporting person disclaims beneficial ownership of the securities held by SCGF LLC and the Sequoia Funds except to the extent of his pecuniary interest therein.