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No actual shares of common stock were delivered to or sold by the Reporting Person. The remaining underlying RSUs continue to be unvested and subject to the original time-based vesting conditions the award was granted under. These transactions are exempt from Section 16(b) pursuant to Rule 16b-3(e)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The RSUs being disposed were from a grant of 23,280 RSUs, that subsequent to the reported transaction will now vest in three annual installments as follows:  6,891 shares on February 10, 2027; 7,760 shares on February 10, 2028; and 7,760 shares on February 10, 2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs being disposed were from a grant of 23,280 RSUs, that subsequent to the reported transaction will now vest in three annual installments as follows:  6,891 shares on February 10, 2027; 7,760 shares on February 10, 2028; and 7,760 shares on February 10, 2029."}],"balance_after":22411,"derivative":{"underlying":"COMMON STOCK","underlying_shares":869},"source":{"system":"sec-edgar","filing":"0001544030-26-000012","document":"wk-form4_1790285609.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1544030/000154403026000012/wk-form4_1790285609.xml","form_type":"4"}},{"id":4626344,"issuer":{"id":3976,"kind":"organization","name":"ALASKA AIR GROUP, INC.","symbol":"ALK"},"owners":[{"id":26999,"kind":"person","name":"HARRISON ANDREW R","position":1,"cik":"0001544030","reported_name":"HARRISON ANDREW R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP AND CCO"}}],"security":"COMMON STOCK","published_at":"2026-09-24T21:33:32.000Z","date":"2026-09-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":869,"price":41.91,"value":36419.79,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported on Table I and Table II represent the simultaneous settlement of a portion of unvested RSUs and the subsequent withholding of the underlying shares by the Issuer solely to satisfy mandatory FICA and related payroll tax obligations triggered by the original RSU grant no longer being subject to a substantial risk of forfeiture.  No actual shares of common stock were delivered to or sold by the Reporting Person. The remaining underlying RSUs continue to be unvested and subject to the original time-based vesting conditions the award was granted under. These transactions are exempt from Section 16(b) pursuant to Rule 16b-3(e)."}],"balance_after":25528,"source":{"system":"sec-edgar","filing":"0001544030-26-000012","document":"wk-form4_1790285609.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1544030/000154403026000012/wk-form4_1790285609.xml","form_type":"4"}},{"id":4626343,"issuer":{"id":3976,"kind":"organization","name":"ALASKA AIR GROUP, INC.","symbol":"ALK"},"owners":[{"id":26999,"kind":"person","name":"HARRISON ANDREW R","position":1,"cik":"0001544030","reported_name":"HARRISON ANDREW R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP AND CCO"}}],"security":"COMMON STOCK","published_at":"2026-09-24T21:33:32.000Z","date":"2026-09-22","kind":"exercise","planned":false,"acquired":true,"shares":869,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported on Table I and Table II represent the simultaneous settlement of a portion of unvested RSUs and the subsequent withholding of the underlying shares by the Issuer solely to satisfy mandatory FICA and related payroll tax obligations triggered by the original RSU grant no longer being subject to a substantial risk of forfeiture.  No actual shares of common stock were delivered to or sold by the Reporting Person. The remaining underlying RSUs continue to be unvested and subject to the original time-based vesting conditions the award was granted under. These transactions are exempt from Section 16(b) pursuant to Rule 16b-3(e)."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each restricted stock unit (RSUs) represents a contingent right to receive one share of ALK common stock."}],"balance_after":26397,"source":{"system":"sec-edgar","filing":"0001544030-26-000012","document":"wk-form4_1790285609.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1544030/000154403026000012/wk-form4_1790285609.xml","form_type":"4"}},{"id":698373,"issuer":{"id":3976,"kind":"organization","name":"ALASKA AIR GROUP, INC.","symbol":"ALK"},"owners":[{"id":26999,"kind":"person","name":"HARRISON ANDREW R","position":1,"cik":"0001544030","reported_name":"HARRISON ANDREW R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP AND CCO"}}],"security":"COMMON STOCK","published_at":"2026-08-04T20:17:40.000Z","date":"2026-08-03","kind":"sale","planned":false,"acquired":false,"shares":5300,"price":49.671,"value":263256.3,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The price reported in column 4 is a weighted average price. These shares sold in multiple transactions at prices ranging from $49.63 to $49.70, inclusive. The reporting person undertakes to provide to Alaska Air Group, Inc., any security holder of Alaska Air Group, Inc., 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."}],"balance_after":25528,"source":{"system":"sec-edgar","filing":"0001544030-26-000010","document":"wk-form4_1785874656.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/766421/000154403026000010/wk-form4_1785874656.xml","form_type":"4"}},{"id":892059,"issuer":{"id":3976,"kind":"organization","name":"ALASKA AIR GROUP, INC.","symbol":"ALK"},"owners":[{"id":26999,"kind":"person","name":"HARRISON ANDREW R","position":1,"cik":"0001544030","reported_name":"HARRISON ANDREW R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP AND CCO"}}],"security":"COMMON STOCK","published_at":"2026-02-20T22:19:37.000Z","date":"2026-02-18","kind":"sale","planned":false,"acquired":false,"shares":5500,"price":56.634,"value":311487.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in column 4 is a weighted average price. These shares sold in multiple transactions at prices ranging from $56.59 to $56.665, inclusive. The reporting person undertakes to provide to Alaska Air Group, Inc., any security holder of Alaska Air Group, Inc., 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."}],"balance_after":30828,"source":{"system":"sec-edgar","filing":"0001544030-26-000008","document":"wk-form4_1771625974.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/766421/000154403026000008/wk-form4_1771625974.xml","form_type":"4"}},{"id":903766,"issuer":{"id":3976,"kind":"organization","name":"ALASKA AIR GROUP, INC.","symbol":"ALK"},"owners":[{"id":26999,"kind":"person","name":"HARRISON ANDREW R","position":1,"cik":"0001544030","reported_name":"HARRISON ANDREW R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP AND 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on February 13, 2026; and 8,860 shares on February 13, 2027."}],"balance_after":8860,"derivative":{"exercise_price":0,"underlying":"COMMON STOCK","underlying_shares":8860},"source":{"system":"sec-edgar","filing":"0001544030-26-000006","document":"wk-form4_1771371141.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/766421/000154403026000006/wk-form4_1771371141.xml","form_type":"4"}},{"id":903765,"issuer":{"id":3976,"kind":"organization","name":"ALASKA AIR GROUP, INC.","symbol":"ALK"},"owners":[{"id":26999,"kind":"person","name":"HARRISON ANDREW R","position":1,"cik":"0001544030","reported_name":"HARRISON ANDREW R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP AND CCO"}}],"security":"RESTRICTED STOCK 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withheld were an exempt disposition to the Issuer under Rule 16b-3(e) to satisfy tax withholding obligations arising out of the vesting of RSUs and settled with shares by the reporting person."}],"balance_after":36328,"source":{"system":"sec-edgar","filing":"0001544030-26-000006","document":"wk-form4_1771371141.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/766421/000154403026000006/wk-form4_1771371141.xml","form_type":"4"}},{"id":903763,"issuer":{"id":3976,"kind":"organization","name":"ALASKA AIR GROUP, INC.","symbol":"ALK"},"owners":[{"id":26999,"kind":"person","name":"HARRISON ANDREW R","position":1,"cik":"0001544030","reported_name":"HARRISON ANDREW R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP AND CCO"}}],"security":"COMMON 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stock unit (RSUs) represents a contingent right to receive one share of ALK common stock."}],"balance_after":37215,"source":{"system":"sec-edgar","filing":"0001544030-26-000006","document":"wk-form4_1771371141.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/766421/000154403026000006/wk-form4_1771371141.xml","form_type":"4"}},{"id":903760,"issuer":{"id":3976,"kind":"organization","name":"ALASKA AIR GROUP, INC.","symbol":"ALK"},"owners":[{"id":26999,"kind":"person","name":"HARRISON ANDREW R","position":1,"cik":"0001544030","reported_name":"HARRISON ANDREW R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP AND CCO"}}],"security":"COMMON 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These shares sold in multiple transactions at prices ranging from $54.78 to $54.945, inclusive. The reporting person undertakes to provide to Alaska Air Group, Inc., any security holder of Alaska Air Group, Inc., 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."}],"balance_after":20195,"source":{"system":"sec-edgar","filing":"0001544030-26-000006","document":"wk-form4_1771371141.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/766421/000154403026000006/wk-form4_1771371141.xml","form_type":"4"}},{"id":906724,"issuer":{"id":3976,"kind":"organization","name":"ALASKA AIR GROUP, INC.","symbol":"ALK"},"owners":[{"id":26999,"kind":"person","name":"HARRISON ANDREW R","position":1,"cik":"0001544030","reported_name":"HARRISON ANDREW R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP AND 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