Ownership Submission
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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(Print or Type Responses)
1. Name and Address of Reporting Person *
SCHUELKE KATHERINE
  2. Issuer Name and Ticker or Trading Symbol
ALTERA CORP [ALTR]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr VP,General Counsel & Secret
(Last)
(First)
(Middle)
101 INNOVATION DRIVE
3. Date of Earliest Transaction (Month/Day/Year)
04/30/2011
(Street)

SAN JOSE, CA 95134
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 Stock 04/30/2011   M   5,500 A $ 0 25,013 D  
Common Stock 04/30/2011   F   2,018 D $ 48.7 22,995 D  
Common Stock 04/30/2011   M   6,250 A $ 0 29,245 D  
Common Stock 04/30/2011   F   2,293 D $ 48.7 26,952 (1) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
Performance Restricted Stock Unit (2) 04/30/2011   M     5,500   (3)   (3) Common Stock 5,500 $ 0 62,900 D  
Performance Restricted Stock Unit (2) 04/30/2011   M     6,250   (4)   (4) Common Stock 6,250 $ 0 56,650 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SCHUELKE KATHERINE
101 INNOVATION DRIVE
SAN JOSE, CA 95134
      Sr VP,General Counsel & Secret  

Signatures

 Katherine E. Schuelke   05/03/2011
**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 220 shares acquired under the Altera Corporation 1987 Employee Stock Purchase Plan on April 29, 2011.
(2) Each Restricted Stock Unit represents a contingent right to receive one share of Altera common stock at no cost.
(3) 25% of the restricted stock unit granted on April 30, 2007 became vested on April 30, 2011 and shares were delivered to the reporting person on that date.
(4) 25% of the restricted stock unit granted on April 28, 2008 became vested on April 30, 2011 and shares were delivered to the reporting person on that date.

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