DINO · HF Sinclair Corp

The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $85.20 to $85.35, inclusive. The reporting person undertakes to provide to HF Sinclair Corporation, any security holder of HF Sinclair Corporation, 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.

These shares were sold by the Reporting Person to the Issuer in a private transaction pursuant to the Stock Purchase Agreement between the Reporting Person and the Issuer dated August 2, 2026.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest on December 1, 2026, provided that the reporting person continues to provide services to the Issuer through such vesting date. The vested restricted stock units will be paid on May 1, 2028 in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest on December 1, 2026, provided that the reporting person continues to provide services to the Issuer through such vesting date. The vested restricted stock units will be paid on May 1, 2028 in the form of the Issuer's common stock equal to the number of vested restricted stock units.

The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $66.32 to $66.35, inclusive. The reporting person undertakes to provide to HF Sinclair Corporation, any security holder of HF Sinclair Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.73 to $69.76, inclusive. The reporting person undertakes to provide to HF Sinclair Corporation, any security holder of HF Sinclair Corporation, 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.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest on December 1, 2026, provided that the reporting person continues to provide services to the Issuer through such vesting date. The vested restricted stock units will be paid on May 1, 2028 in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Represents a bona fide gift of shares to a family trust.

These shares were sold by the Reporting Person to the Issuer in a private transaction pursuant to the Stock Purchase Agreement between the Reporting Person and the Issuer dated May 18, 2026.

The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $68.95 to $69.17, inclusive. The reporting person undertakes to provide to HF Sinclair Corporation, any security holder of HF Sinclair Corporation, 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.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.81 to $69.32, inclusive. The reporting person undertakes to provide to HF Sinclair Corporation, any security holder of HF Sinclair Corporation, 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.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest on December 1, 2026, provided that the reporting person continues to provide services to the Issuer through such vesting date. The vested restricted stock units will be paid on May 1, 2028 in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest on December 1, 2026, provided that the reporting person continues to provide services to the Issuer through such vesting date. The vested restricted stock units will be paid on May 1, 2028 in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest in two equal annual installments beginning December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided that the reporting person remains in the employ of the Issuer from the grant date through each such vesting date. The vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

These shares were deemed surrendered to satisfy the reporting person's tax liability incident to the vesting of restricted stock unit grants previously reported.

These shares were deemed surrendered to satisfy the reporting person's tax liability incident to the issuance of the shares reported on the preceding line.

These shares were deemed issued to the reporting person to settle performance share units that were not derivative securities under the Issuer's Amended and Restated 2020 Long Term Incentive Plan.

These shares were deemed surrendered to satisfy the reporting person's tax liability incident to the vesting of restricted stock unit grants previously reported.

These shares were deemed surrendered to satisfy the reporting person's tax liability incident to the vesting of restricted stock unit grants previously reported.

These shares were deemed surrendered to satisfy the reporting person's tax liability incident to the issuance of the shares reported on the preceding line.

These shares were deemed surrendered to satisfy the reporting person's tax liability incident to the vesting of restricted stock unit grants previously reported.

These shares were deemed issued to the reporting person to settle performance share units that were not derivative securities under the Issuer's Amended and Restated 2020 Long Term Incentive Plan.

These shares were deemed surrendered to satisfy the reporting person's tax liability incident to the vesting of restricted stock unit grants previously reported.

These shares were deemed issued to the reporting person to settle performance share units that were not derivative securities under the Issuer's Amended and Restated 2020 Long Term Incentive Plan.

These shares were deemed surrendered to satisfy the reporting person's tax liability incident to the vesting of restricted stock unit grants previously reported.

These shares were deemed surrendered to satisfy the reporting person's tax liability incident to the issuance of the shares reported on the preceding line.

These shares were sold by the Reporting Person to the Issuer in a private transaction pursuant to the Stock Purchase Agreement between the Reporting Person and the Issuer dated November 18, 2025.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units are subject to restrictions that will lapse on December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided the reporting person has served on the board of directors of the Issuer from the grant date until such vesting date. Unless settlement is deferred pursuant to the Issuer's deferred compensation arrangement for directors, the vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units are subject to restrictions that will lapse on December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided the reporting person has served on the board of directors of the Issuer from the grant date until such vesting date. Unless settlement is deferred pursuant to the Issuer's deferred compensation arrangement for directors, the vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units are subject to restrictions that will lapse on December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided the reporting person has served on the board of directors of the Issuer from the grant date until such vesting date. Unless settlement is deferred pursuant to the Issuer's deferred compensation arrangement for directors, the vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units are subject to restrictions that will lapse on December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided the reporting person has served on the board of directors of the Issuer from the grant date until such vesting date. Unless settlement is deferred pursuant to the Issuer's deferred compensation arrangement for directors, the vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units are subject to restrictions that will lapse on December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided the reporting person has served on the board of directors of the Issuer from the grant date until such vesting date. Unless settlement is deferred pursuant to the Issuer's deferred compensation arrangement for directors, the vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units are subject to restrictions that will lapse on December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided the reporting person has served on the board of directors of the Issuer from the grant date until such vesting date. Unless settlement is deferred pursuant to the Issuer's deferred compensation arrangement for directors, the vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units are subject to restrictions that will lapse on December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided the reporting person has served on the board of directors of the Issuer from the grant date until such vesting date. Unless settlement is deferred pursuant to the Issuer's deferred compensation arrangement for directors, the vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units are subject to restrictions that will lapse on December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided the reporting person has served on the board of directors of the Issuer from the grant date until such vesting date. Unless settlement is deferred pursuant to the Issuer's deferred compensation arrangement for directors, the vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units are subject to restrictions that will lapse on December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided the reporting person has served on the board of directors of the Issuer from the grant date until such vesting date. Unless settlement is deferred pursuant to the Issuer's deferred compensation arrangement for directors, the vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units are subject to restrictions that will lapse on December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided the reporting person has served on the board of directors of the Issuer from the grant date until such vesting date. Unless settlement is deferred pursuant to the Issuer's deferred compensation arrangement for directors, the vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest in three equal annual installments beginning December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided that the reporting person remains in the employ of the Issuer from the grant date through each such vesting date. The vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Due to an administrative error, the reporting person filed a Form 4 which reported a grant of 56,616 Restricted Stock Unit awards ("RSUs") granted pursuant to the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan ("LTIP"). This amendment is intended to report that the reporting person received a grant of 63,615 RSUs on the original transaction date.

Restricted stock units granted under the LTIP. The restricted stock units vest in three equal annual installments beginning December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided that the reporting person remains in the employ of the Issuer from the grant date through each such vesting date. The vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest in three equal annual installments beginning December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided that the reporting person remains in the employ of the Issuer from the grant date through each such vesting date. The vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest in three equal annual installments beginning December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided that the reporting person remains in the employ of the Issuer from the grant date through each such vesting date. The vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest in three equal annual installments beginning December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided that the reporting person remains in the employ of the Issuer from the grant date through each such vesting date. The vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

Restricted stock units granted under the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan. The restricted stock units vest in three equal annual installments beginning December 1, 2026 (or on the first business day thereafter if such date falls on a weekend), provided that the reporting person remains in the employ of the Issuer from the grant date through each such vesting date. The vested restricted stock units will be paid within 30 days following the vesting date in the form of the Issuer's common stock equal to the number of vested restricted stock units.

These shares were sold by the Reporting Person to the Issuer in a private transaction pursuant to the Stock Purchase Agreement between the Reporting Person and the Issuer dated November 3, 2025.

These shares were sold by the Reporting Person to the Issuer in a private transaction pursuant to the Stock Purchase Agreement between the Reporting Person and the Issuer dated September 16, 2025.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.46 to $42.62, inclusive. The reporting person undertakes to provide to HF Sinclair Corporation, any security holder of HF Sinclair Corporation, 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.