{"transactions":[{"id":4624527,"issuer":{"id":4796,"kind":"organization","name":"Frontier Group Holdings, Inc.","symbol":"ULCC"},"owners":[{"id":67244,"kind":"person","name":"Mathew Jeffrey","position":1,"cik":"0002088895","reported_name":"Mathew Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Chief Information Officer"}}],"security":"Restricted Stock Units","published_at":"2026-09-22T20:04:13.000Z","date":"2026-09-22","kind":"exercise","planned":false,"acquired":false,"shares":65445,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Issuer Common Stock. The Restricted Stock Units have no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The remaining Restricted Stock Units vest in three equal annual installments beginning on September 22, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Issuer Common Stock. The Restricted Stock Units have no expiration date."}],"balance_after":196335,"derivative":{"underlying":"Common Stock","underlying_shares":65445},"source":{"system":"sec-edgar","filing":"0002088895-26-000003","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2088895/000208889526000003/primarydocument.xml","form_type":"4"}},{"id":4624526,"issuer":{"id":4796,"kind":"organization","name":"Frontier Group Holdings, Inc.","symbol":"ULCC"},"owners":[{"id":67244,"kind":"person","name":"Mathew Jeffrey","position":1,"cik":"0002088895","reported_name":"Mathew Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Chief Information Officer"}}],"security":"Common Stock","published_at":"2026-09-22T20:04:13.000Z","date":"2026-09-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":18818,"price":6.12,"value":115166.16,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents shares of Issuer Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of Issuer Common Stock delivered to the Reporting Person on September 22, 2026, from the vesting of Restricted Stock Units, and does not represent a sale by the Reporting Person."}],"balance_after":46627,"source":{"system":"sec-edgar","filing":"0002088895-26-000003","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2088895/000208889526000003/primarydocument.xml","form_type":"4"}},{"id":4624525,"issuer":{"id":4796,"kind":"organization","name":"Frontier Group Holdings, Inc.","symbol":"ULCC"},"owners":[{"id":67244,"kind":"person","name":"Mathew Jeffrey","position":1,"cik":"0002088895","reported_name":"Mathew Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Chief Information Officer"}}],"security":"Common Stock","published_at":"2026-09-22T20:04:13.000Z","date":"2026-09-22","kind":"exercise","planned":false,"acquired":true,"shares":65445,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Relates solely to the settlement of previously granted Restricted Stock Units upon vesting. No shares were sold by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Issuer Common Stock. The Restricted Stock Units have no expiration date."}],"balance_after":65445,"source":{"system":"sec-edgar","filing":"0002088895-26-000003","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2088895/000208889526000003/primarydocument.xml","form_type":"4"}},{"id":914450,"issuer":{"id":4796,"kind":"organization","name":"Frontier Group Holdings, Inc.","symbol":"ULCC"},"owners":[{"id":67244,"kind":"person","name":"Mathew Jeffrey","position":1,"cik":"0002088895","reported_name":"Mathew Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Chief Information Officer"}}],"security":"Restricted Stock Units","published_at":"2026-02-09T21:30:49.000Z","date":"2026-02-05","kind":"grant","planned":false,"acquired":true,"shares":61947,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Issuer Common Stock. The Restricted Stock Units have no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Stock Units vest in three substantially equal annual installments beginning on February 5, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Issuer Common Stock. The Restricted Stock Units have no expiration date."}],"balance_after":61947,"derivative":{"underlying":"Common Stock","underlying_shares":61947},"source":{"system":"sec-edgar","filing":"0002088895-26-000001","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1670076/000208889526000001/primarydocument.xml","form_type":"4"}},{"id":1010652,"issuer":{"id":4796,"kind":"organization","name":"Frontier Group Holdings, Inc.","symbol":"ULCC"},"owners":[{"id":67244,"kind":"person","name":"Mathew Jeffrey","position":1,"cik":"0002088895","reported_name":"Mathew Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Chief Information Officer"}}],"security":"Restricted Stock Units","published_at":"2025-10-31T20:02:42.000Z","date":"2025-10-29","kind":"grant","planned":false,"acquired":true,"shares":261780,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Issuer Common Stock. The Restricted Stock Units have no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Stock Units vest in four substantially equal annual installments beginning on September 22, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Issuer Common Stock. The Restricted Stock Units have no expiration date."}],"balance_after":261780,"derivative":{"underlying":"Common Stock","underlying_shares":261780},"source":{"system":"sec-edgar","filing":"0002088895-25-000001","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1670076/000208889525000001/primarydocument.xml","form_type":"4"}}]}