FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Chang Daniel Kuang Ming   2. Issuer Name and Ticker or Trading Symbol ALPHA & OMEGA SEMICONDUCTOR Ltd [AOSL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Senior VP of Marketing (Last) (First) (Middle) 475 OAKMEAD PARKWAY 3. Date of Earliest Transaction (Month/Day/Year) 03/31/2016 (Street) SUNNYVALE, CA 94085 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Share 03/31/2016   M   21,000 A $ 7.6 65,060 (1) D   Common Share 03/31/2016   S   21,000 (2) D $ 11 (3) 44,060 (1) D   Common Share 03/31/2016   M   7,875 A $ 8.45 51,935 (1) D   Common Share 03/31/2016   S   7,875 (2) D $ 11.5 (3) 44,060 (1) D   Common Share 03/31/2016   M   16,770 A $ 7.44 60,830 (1) D   Common Share 03/31/2016   S   16,770 (2) D $ 11 (3) 44,060 (1) D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Share Option (right to buy)

$ 7.6

03/31/2016

M

21,000

(4)

05/04/2019

Common Shares

21,000

$ 0

0

D

Employee Share Option (right to buy)

$ 8.45

03/31/2016

M

7,875

(5)

02/13/2023

Common Shares

7,875

$ 0

2,625

D

Employee Share Option (right to buy)

$ 7.44

03/31/2016

M

16,770

(6)

03/16/2024

Common Shares

16,770

$ 0

18,230

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Chang Daniel Kuang Ming 475 OAKMEAD PARKWAY SUNNYVALE, CA 94085			Senior VP of Marketing

Signatures

/s/ Yanbing Hong, attorney-in-fact for Daniel Kuang Ming Chang		04/04/2016
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Includes an aggregate of 38,666 shares subject to restricted share unit awards granted on April 26, 2012, February 14, 2013, March 17, 2014, March 16, 2015, and March 15, 2016, which will be issued as such units vest in accordance with their terms.
(2)	The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 24, 2016.
(3)	The price reported in Column 4 is the exact price at which all shares were sold.
(4)	The option is fully vested and immediately exercisable for all option shares.
(5)	The option was granted on February 14, 2013 and became exercisable with respect to one-fourth (1/4) of the underlying shares on the first anniversary of the grant date, and thereafter the balance of the option shares became exercisable in a series of thirty-six (36) successive equal monthly installments.
(6)	The option was granted on March 17, 2014 and became exercisable with respect to one-fourth (1/4) of the underlying shares on March 15, 2015, and thereafter the balance of the option shares became exercisable in a series of thirty-six (36) successive equal monthly installments.

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