Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Yeung Norman
2. Date of Event Requiring Statement (Month/Day/Year)
04/12/2012
3. Issuer Name and Ticker or Trading Symbol
INPHI Corp [IPHI]
(Last)
(First)
(Middle)
3945 FREEDOM CIRCLE, SUITE 1100
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
See Remarks
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SANTA CLARA, CA 95054
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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock (1) 22,500
D
 
Common Stock (2) 20,000
D
 
Common Stock 4,285
D
 
Common Stock 17,142
I
Held by children

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (right to buy)   (3) 08/15/2017 Common Stock 84,642 $ 1.78 D  
Employee Stock Option (right to buy)   (4) 02/25/2019 Common Stock 21,428 $ 1.47 D  
Employee Stock Option (right to buy)   (5) 04/30/2020 Common Stock 42,856 $ 9.29 D  
Employee Stock Option (right to buy)   (4) 07/14/2020 Common Stock 428 $ 12.02 D  
Employee Stock Option (right to buy)   (6) 04/07/2021 Common Stock 22,500 $ 22.07 D  
Employee Stock Option (right to buy)   (7) 01/18/2022 Common Stock 20,000 $ 12.34 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Yeung Norman
3945 FREEDOM CIRCLE
SUITE 1100
SANTA CLARA, CA 95054
      See Remarks  

Signatures

/s/ Norman Yeung 04/16/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) These restricted stock units vest in three annual installments, with the first installment vesting on 4/7/13.
(2) These restricted stock units vest in four annual installments, with the first installment vesting on 1/18/13.
(3) This option is fully vested and 185,357 shares underlying this option have been previously exercised.
(4) This option is fully vested.
(5) This option vests in 48 monthly installments from 4/30/11 to 4/30/15.
(6) This option vests in three annual installments, with the first installment vesting on 4/7/13.
(7) This option vests as to 25% of the shares on 1/18/13 and the remaining shares vests in 36 monthly installments thereafter from 1/18/13 to 1/18/16.
 
Remarks:
Senior Vice President, Engineering

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