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DEFA14A

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

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Exchange Act of 1934 (Amendment No. )

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ALTERA CORPORATION

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ALTERA CORPORATION

ALTERA CORPORATION
101 INNOVATION DR
SAN JOSE, CA 95134

Meeting Information

Meeting Type: Annual
For holders as of: March 8, 2010
Date: May 6, 2010 Time: 1:30 p.m., Pacific Time


Location:		Altera Corporation 101 Innovation Drive San Jose, California 95134

You are receiving this communication because you hold shares in the above-named company.

This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).

We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

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NOTICE AND PROXY STATEMENT ANNUAL REPORT LETTER TO STOCKHOLDERS

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Voting Items
The Board of Directors recommends you vote FOR the following proposals: 1. Election of Directors Nominees: 1a. John P. Daane 1b. Robert J. Finocchio, Jr. 1c. Kevin McGarity 1d. T. Michael Nevens 1e. Krish A. Prabhu 1f. John Shoemaker 1g. Susan Wang 2. To reapprove the Internal Revenue Code Section 162(m) provisions of the 2005 Equity Incentive Plan to preserve our ability to deduct for corporate income tax purposes compensation that qualifies as performance-based compensation under Section 162(m). 3. To approve an amendment to the 2005 Equity Incentive Plan to increase by 5,000,000 the number of shares of common stock reserved for issuance under the plan.				4. To approve an amendment to the 1987 Employee Stock Purchase Plan to increase by 1,000,000 the number of shares of common stock reserved for issuance under the plan. 5. To ratify the appointment of PricewaterhouseCoopers LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2010. The Board of Directors recommends you vote AGAINST the following proposal: 6. If properly presented at the annual meeting, to consider a stockholder proposal requesting that the board take the steps necessary so that each stockholder voting requirement in Altera’s certificate of incorporation and by-laws that calls for greater than a simple majority vote (including each 80% supermajority provision) be changed to a majority of the votes cast for and against the proposal in compliance with applicable laws. NOTE: Such other business as may properly come before the meeting or any adjournment thereof.