X0306 4 2012-09-07 0 0000768251 ALTERA CORP ALTR 0001255731 MCGARITY KEVIN J 101 INNOVATION DRIVE SAN JOSE CA 95134 1 0 0 0 Common Stock 2012-09-07 4 M 0 10000 20.73 A 24371 D Common Stock 2012-09-07 4 S 0 10000 38.017 D 14371 D Non-Qualified Stock Option (right to buy) 20.73 2012-09-07 4 M 0 10000 0 D 2006-06-01 2015-05-10 Common Stock 10000 0 D The 10,000 shares were sold in 5 lots ranging from 15 shares to 4,305 shares per lot. The sale price ranged between $38.01 and $38.03. The price reported above represents the weighted average sale price. The Reporting Person undertakes to provide to any security holder of Altera Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares and prices at which the transactions were affected. The grant shall expire ten years from the date of grant. KEVIN MCGARITY 2012-09-11