X0306 4 2022-02-28 0 0000100517 United Airlines Holdings, Inc. UAL 0001249555 KIRBY J SCOTT P. O. BOX 66100 HDQLD CHICAGO IL 60666 1 1 0 0 Chief Executive Officer Common Stock 2022-02-28 4 M 0 11654 0.00 A 256782 D Common Stock 2022-02-28 4 M 0 42936 0.00 A 299718 D Common Stock 2022-02-28 4 M 0 28849 0.00 A 328207 D Common Stock 2022-02-28 4 F 0 32683 44.40 D 295524 D Common Stock 5000 I See Footnote Common Stock 8000 I See Footnote Restricted Stock Units 2022-02-28 4 M 0 11654 0.00 D Common Stock 11654 0 D Restricted Stock Units 2022-02-28 4 M 0 42936 0.00 D Common Stock 42936 42937 D Restricted Stock Units 2022-02-28 4 M 0 28849 0.00 D Common Stock 28849 56982 D Represents the settlement upon vesting of restricted stock units ("RSUs") into UAL common stock. The RSUs were granted on February 27, 2019 and vest in 1/3 annual installments on February 28, 2020, 2021 and 2022. The RSUs were granted on February 21, 2020 and May 21, 2020 and vest in 1/3 annual installments on February 28, 2022, 2023 and 2024. The RSUs were granted on March 1, 2021 and May 27, 2021 and vest in four installments on August 31, 2021, February 28, 2022, August 31, 2022 and on February 28, 2023. This transaction represents the withholding of shares to pay tax withholding obligations associated with the vesting of the RSU awards referenced in footnotes 2-4 above. Represents shares held in a trust for the benefit of Mr. Kirby's children and other relatives in which Mr. Kirby serves as the trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report is not an admission that the reporting person is the beneficial owner of all the reported shares for purposes of Section 16 or for any other purpose. Represents shares held in a trust for the benefit of Mr. Kirby's children in which Mr. Kirby's brother serves as the trustee. The reporting person disclaims beneficial ownership of these securities, and the filing of this report is not an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose. Each RSU represents the economic equivalent of one share of UAL common stock and is settled in shares of UAL common stock upon vesting. /s/ Sarah Hagy for J. Scott Kirby 2022-03-02