X0306 4 2012-09-26 false 0000766421 ALASKA AIR GROUP, INC. ALK 0001263108 JOHNSON GLENN S 19300 INTERNATIONAL BLVD SEATTLE WA 98188 false true false false PRESIDENT/HORIZON AIR COMMON STOCK 401(K) 2278 I ESOP TRUST RESTRICTED STOCK UNIT 23600 D COMMON STOCK 2012-09-26 4 S false 749 35.324 D 15736 D SHARES HELD IN THE ALASKA AIR GROUP INC. EMPLOYEE STOCK OWNERSHIP 401(K) PLAN TRUST AS OF DECEMBER 31, 2011. STOCK UNITS AWARDED UNDER THE 2008 PERFORMANCE INCENTIVE PLAN; NOT VESTED BUT NO LONGER SUBJECT TO FORFEITURE. SALE OF COMMON SHARES EFFECTED PURSUANT TO A RULE 10b5-1 TRADING PLAN ADOPTED BY MR. JOHNSON ON 7/31/12. THE PRICE REPORTED IN COLUMN 4 IS A WEIGHTED AVERAGE PRICE. THESE SHARES SOLD IN MULTIPLE TRANSACTIONS AT PRICES RANGING FROM $35.00 TO $35.79, INCLUSIVE. THE REPORTING PERSON UNDERTAKES TO PROVIDE TO ALASKA AIR GROUP, ANY SECURITY HOLDER OF ALASKA AIR GROUP, OR THE STAFF OF THE SECURITIES AND EXCHANGE COMMISSION, UPON REQUEST, FULL INFORMATION REGARDING THE NUMBER OF SHARES SOLD AT EACH SEPARATE PRICE WITHIN THE RANGES SET FORTH IN THIS FOOTNOTE. /s/ Jeanne Gammon Attorney-in-Fact for Glenn S. Johnson 2012-09-28