#1 Represents full vesting of shares earned under a performance stock award granted in September 2021 under the Microsoft Corporation Executive Incentive Plan for the 3-year performance period that ended on June 30, 2024.

#2 Includes 67.4091 shares acquired on March 28, 2024 under the Microsoft Employee Stock Purchase Plan.

#1 Represents full vesting of shares earned under a performance stock award granted in September 2021 under the Microsoft Corporation Executive Incentive Plan for the 3-year performance period that ended on June 30, 2024.

#2 Includes 67.4091 shares acquired on March 28, 2024 under the Microsoft Employee Stock Purchase Plan.

#1 Deferred stock units (DSUs) granted under the Alaska Air Group, Inc. (the "Issuer") 2016 Performance Incentive Plan in connection with the reporting person's re-election to serve on the Board of Directors until the 2025 Annual Stockholders Meeting. The DSUs are 100% vested and payable in shares of the Issuer's common stock on a one-for-one basis following the resignation of the reporting person from the Issuer's Board of Directors.

#2 Includes 10,302 DSUs previously granted under the Issuer's 2016 Performance Incentive Plan.

#1 This transaction was executed in multiple trades at prices ranging from $411.80 to $411.94. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and prices at which the transactions were effected.