AM

SEC source: 0001104659-26-115583 · tm2627465-8_4seq1.xml · nonDerivative · entry 1

MCARDLE JANINE J · CIK 0001250240 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,439

SEC source: 0001104659-26-115582 · tm2627465-7_4seq1.xml · nonDerivative · entry 1

Munoz Jeffrey S. · CIK 0002043289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,419

SEC source: 0001104659-26-115579 · tm2627465-6_4seq1.xml · nonDerivative · entry 1

MOLLENKOPF JOHN C · CIK 0001235082 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,581

SEC source: 0001104659-26-115577 · tm2627465-5_4seq1.xml · nonDerivative · entry 1

Chisholm Nancy · CIK 0001957253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,223

SEC source: 0001104659-26-115574 · tm2627465-4_4seq1.xml · nonDerivative · entry 1

DEA PETER A · CIK 0001132295 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,823

SEC source: 0001104659-26-115568 · tm2627465-3_4seq1.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,706

SEC source: 0001104659-26-115565 · tm2627465-2_4seq1.xml · nonDerivative · entry 1

KLIMLEY BROOKS J · CIK 0001235158 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,219

SEC source: 0001104659-26-115558 · tm2627465-1_4seq1.xml · nonDerivative · entry 1

KEYTE DAVID H · CIK 0001215004 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,311

SEC source: 0001104659-26-092194 · tm2622491-1_4seq1.xml · nonDerivative · entry 1

KLIMLEY BROOKS J · CIK 0001235158 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,204

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.21 to $21.30, inclusive. The reporting person undertakes to provide to Antero Midstream Corporation (the "Issuer"), any security holder of the Issuer, 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 range set forth in this footnote (1).

SEC source: 0001104659-26-091154 · tm2622312-1_4seq1.xml · nonDerivative · entry 1

Pearce Sheri · CIK 0001808080 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,900

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.96 to $22.06, inclusive. The reporting person undertakes to provide to Antero Midstream Corporation (the "Issuer"), any security holder of the Issuer, 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 range set forth in this footnote (1).

F2 · balance_after: Includes 81,755 shares of common stock, par value $0.01 per share, of the Issuer subject to previously granted restricted stock units that remain subject to vesting.

SEC source: 0001104659-26-083579 · tm2620325-7_4seq1.xml · nonDerivative · entry 1

DEA PETER A · CIK 0001132295 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,808

SEC source: 0001104659-26-083572 · tm2620325-4_4seq1.xml · nonDerivative · entry 1

Munoz Jeffrey S. · CIK 0002043289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,404

SEC source: 0001104659-26-083576 · tm2620325-6_4seq1.xml · nonDerivative · entry 1

Chisholm Nancy · CIK 0001957253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,208

SEC source: 0001104659-26-083574 · tm2620325-5_4seq1.xml · nonDerivative · entry 1

MOLLENKOPF JOHN C · CIK 0001235082 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,566

SEC source: 0001104659-26-083565 · tm2620325-1_4seq1.xml · nonDerivative · entry 1

KLIMLEY BROOKS J · CIK 0001235158 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,204

SEC source: 0001104659-26-083568 · tm2620325-2_4seq1.xml · nonDerivative · entry 1

KEYTE DAVID H · CIK 0001215004 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,903

SEC source: 0001104659-26-083569 · tm2620325-3_4seq1.xml · nonDerivative · entry 1

MCARDLE JANINE J · CIK 0001250240 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,424

SEC source: 0001104659-26-083582 · tm2620325-8_4seq1.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 157,691

SEC source: 0001104659-26-055123 · tm2613566-1_4seq1.xml · nonDerivative · entry 1

Kennedy Michael N. · CIK 0001477679 · Director · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,500,594

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 6, 2025.

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.57 to $22.06, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 range set forth in this footnote (2).

F3 · balance_after: Includes 472,354 shares of Common Stock subject to previously granted restricted stock units that remain subject to vesting.

SEC source: 0001104659-26-055125 · tm2613566-2_4seq1.xml · nonDerivative · entry 1

Schultz Yvette K · CIK 0001904142 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 580,565

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.55 to $22.00, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 range set forth in this footnote (1).

F2 · balance_after: Includes 226,850 shares of common stock subject to previously granted restricted stock units that remain subject to vesting.

SEC source: 0001104659-26-043288 · tm2611722-7_4seq1.xml · nonDerivative · entry 1

DEA PETER A · CIK 0001132295 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,901

SEC source: 0001104659-26-043281 · tm2611722-5_4seq1.xml · nonDerivative · entry 1

Munoz Jeffrey S. · CIK 0002043289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,497

SEC source: 0001104659-26-043285 · tm2611722-6_4seq1.xml · nonDerivative · entry 1

Chisholm Nancy · CIK 0001957253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,301

SEC source: 0001104659-26-043260 · tm2611722-2_4seq1.xml · nonDerivative · entry 1

MOLLENKOPF JOHN C · CIK 0001235082 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,659

SEC source: 0001104659-26-043255 · tm2611722-1_4seq1.xml · nonDerivative · entry 1

KLIMLEY BROOKS J · CIK 0001235158 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,297

SEC source: 0001104659-26-043276 · tm2611722-4_4seq1.xml · nonDerivative · entry 1

KEYTE DAVID H · CIK 0001215004 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 114,678

SEC source: 0001104659-26-043268 · tm2611722-3_4seq1.xml · nonDerivative · entry 1

MCARDLE JANINE J · CIK 0001250240 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,517

SEC source: 0001104659-26-043291 · tm2611722-8_4seq1.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,784

SEC source: 0001104659-26-027228 · tm268704-1_4seq1.xml · nonDerivative · entry 1

KLIMLEY BROOKS J · CIK 0001235158 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,680

SEC source: 0001104659-26-026032 · tm268378-5_4seq1.xml · nonDerivative · entry 3

Pearce Sheri · CIK 0001808080 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,900

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.66 to $22.87, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 range set forth in this footnote (5).

F4 · balance_after: Includes 81,755 shares of Common Stock subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026027 · tm268378-1_4seq1.xml · nonDerivative · entry 3

Schultz Yvette K · CIK 0001904142 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 649,834

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.68 to $22.90, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 range set forth in this footnote (5).

F4 · balance_after: Includes 226,850 shares of Common Stock subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026032 · tm268378-5_4seq1.xml · nonDerivative · entry 2

Pearce Sheri · CIK 0001808080 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 113,900

F3 · shares: In connection with the vesting and settlement of RSUs through the issuance of Common Stock pursuant to the Plan, the Issuer withheld shares of Common Stock that would otherwise have been issued to the Reporting Person to satisfy their tax withholding obligations. The number of shares of Common Stock withheld was determined based on the closing price per share of Common Stock on March 6, 2026.

F4 · balance_after: Includes 81,755 shares of Common Stock subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026032 · tm268378-5_4seq1.xml · nonDerivative · entry 1

Pearce Sheri · CIK 0001808080 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 139,140

F1 · shares: Reflects the grant of restricted stock units ("RSUs") pursuant to the Amended and Restated Antero Midstream Corporation Long Term Incentive Plan (the "Plan") which vest as to 1/3 of the total amount granted on each of the first three anniversaries of March 7, 2026, generally subject to continued employment through each vesting date.

F2 · balance_after: Includes 139,140 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Midstream Corporation (the "Issuer") subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026028 · tm268378-2_4seq1.xml · nonDerivative · entry 2

Krueger Brendan E. · CIK 0001860656 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 674,952

F3 · shares: In connection with the vesting and settlement of RSUs through the issuance of Common Stock pursuant to the Plan, the Issuer withheld shares of Common Stock that would otherwise have been issued to the Reporting Person to satisfy their tax withholding obligations. The number of shares of Common Stock withheld was determined based on the closing price per share of Common Stock on March 6, 2026.

F4 · balance_after: Includes 217,185 shares of Common Stock subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026028 · tm268378-2_4seq1.xml · nonDerivative · entry 1

Krueger Brendan E. · CIK 0001860656 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 731,498

F1 · shares: Reflects the grant of restricted stock units ("RSUs") pursuant to the Amended and Restated Antero Midstream Corporation Long Term Incentive Plan (the "Plan") which vest as to 1/3 of the total amount granted on each of the first three anniversaries of March 7, 2026, generally subject to continued employment through each vesting date.

F2 · balance_after: Includes 345,752 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Midstream Corporation (the "Issuer") subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026029 · tm268378-3_4seq1.xml · nonDerivative · entry 3

Kennedy Michael N. · CIK 0001477679 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,600,594

F4 · balance_after: Includes 472,354 shares of Common Stock subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026029 · tm268378-3_4seq1.xml · nonDerivative · entry 2

Kennedy Michael N. · CIK 0001477679 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,615,594

F3 · shares: In connection with the vesting and settlement of RSUs through the issuance of Common Stock pursuant to the Plan, the Issuer withheld shares of Common Stock that would otherwise have been issued to the Reporting Person to satisfy their tax withholding obligations. The number of shares of Common Stock withheld was determined based on the closing price per share of Common Stock on March 6, 2026.

F4 · balance_after: Includes 472,354 shares of Common Stock subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026029 · tm268378-3_4seq1.xml · nonDerivative · entry 1

Kennedy Michael N. · CIK 0001477679 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,724,120

F1 · shares: Reflects the grant of RSUs pursuant to the Amended and Restated Antero Midstream Corporation Long Term Incentive Plan (the "Plan") which vest as to 1/3 of the total amount granted on each of the first three anniversaries of March 7, 2026, generally subject to continued employment through each vesting date.

F2 · balance_after: Includes 719,114 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Midstream Corporation (the "Issuer") subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026030 · tm268378-4_4seq1.xml · nonDerivative · entry 2

Agnew Justin J. · CIK 0002083169 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 208,895

F3 · shares: In connection with the vesting and settlement of RSUs through the issuance of Common Stock pursuant to the Plan, the Issuer withheld shares of Common Stock that would otherwise have been issued to the Reporting Person to satisfy their tax withholding obligations. The number of shares of Common Stock withheld was determined based on the closing price per share of Common Stock on March 6, 2026.

F4 · balance_after: Includes 64,061 shares of Common Stock subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026030 · tm268378-4_4seq1.xml · nonDerivative · entry 1

Agnew Justin J. · CIK 0002083169 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 224,394

F1 · shares: Reflects the grant of restricted stock units ("RSUs") pursuant to the Amended and Restated Antero Midstream Corporation Long Term Incentive Plan (the "Plan") which vest as to 1/3 of the total amount granted on each of the first three anniversaries of March 7, 2026, generally subject to continued employment through each vesting date.

F2 · balance_after: Includes 99,299 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Midstream Corporation (the "Issuer") subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026027 · tm268378-1_4seq1.xml · nonDerivative · entry 2

Schultz Yvette K · CIK 0001904142 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 674,834

F3 · shares: In connection with the vesting and settlement of RSUs through the issuance of Common Stock pursuant to the Plan, the Issuer withheld shares of Common Stock that would otherwise have been issued to the Reporting Person to satisfy their tax withholding obligations. The number of shares of Common Stock withheld was determined based on the closing price per share of Common Stock on March 6, 2026.

F4 · balance_after: Includes 226,850 shares of Common Stock subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-026027 · tm268378-1_4seq1.xml · nonDerivative · entry 1

Schultz Yvette K · CIK 0001904142 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 741,086

F1 · shares: Reflects the grant of restricted stock units ("RSUs") pursuant to the Amended and Restated Antero Midstream Corporation Long Term Incentive Plan (the "Plan") which vest as to 1/3 of the total amount granted on each of the first three anniversaries of March 7, 2026, generally subject to continued employment through each vesting date.

F2 · balance_after: Includes 377,488 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Midstream Corporation (the "Issuer") subject to previously granted RSUs that remain subject to vesting.

SEC source: 0001104659-26-020886 · tm267315-2_4seq1.xml · nonDerivative · entry 2

Krueger Brendan E. · CIK 0001860656 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 633,545

F3 · shares: In connection with the vesting and settlement of PSUs through the issuance of Common Stock pursuant to the Amended and Restated Antero Midstream Corporation Long Term Incentive Plan, the Issuer withheld Common Stock that would otherwise have been issued to the Reporting Person to satisfy their tax withholding obligations. The number of shares of Common Stock withheld was determined based on the closing price per share of Common Stock on February 24, 2026.

F2 · balance_after: Includes 247,799 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-26-020886 · tm267315-2_4seq1.xml · nonDerivative · entry 1

Krueger Brendan E. · CIK 0001860656 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 677,392

F1 · shares: Each performance share unit ("PSU") represented a contingent right to receive one share of common stock ("Common Stock") of Antero Midstream Corporation (the "Issuer"). On February 24, 2026, the Compensation Committee of the Issuer certified performance and authorized settlement with respect to PSUs originally granted on April 15, 2023, which vested based on the Issuer's return on invested capital over a three year period.

F2 · balance_after: Includes 247,799 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-26-020884 · tm267315-1_4seq1.xml · nonDerivative · entry 2

Kennedy Michael N. · CIK 0001477679 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,462,910

F3 · shares: In connection with the vesting and settlement of PSUs through the issuance of Common Stock pursuant to the Amended and Restated Antero Midstream Corporation Long Term Incentive Plan, the Issuer withheld Common Stock that would otherwise have been issued to the Reporting Person to satisfy their tax withholding obligations. The number of shares of Common Stock withheld was determined based on the closing price per share of Common Stock on February 24, 2026.

F2 · balance_after: Includes 457,904 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-26-020884 · tm267315-1_4seq1.xml · nonDerivative · entry 1

Kennedy Michael N. · CIK 0001477679 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,552,302

F1 · shares: Each performance share unit ("PSU") represented a contingent right to receive one share of common stock ("Common Stock") of Antero Midstream Corporation (the "Issuer"). On February 24, 2026, the Compensation Committee of the Issuer certified performance and authorized settlement with respect to PSUs originally granted on April 15, 2023, which vested based on the Issuer's return on invested capital over a three year period.

F2 · balance_after: Includes 457,904 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-26-020887 · tm267315-3_4seq1.xml · nonDerivative · entry 2

Schultz Yvette K · CIK 0001904142 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 643,133

F3 · shares: In connection with the vesting and settlement of PSUs through the issuance of Common Stock pursuant to the Amended and Restated Antero Midstream Corporation Long Term Incentive Plan, the Issuer withheld Common Stock that would otherwise have been issued to the Reporting Person to satisfy their tax withholding obligations. The number of shares of Common Stock withheld was determined based on the closing price per share of Common Stock on February 24, 2026.

F2 · balance_after: Includes 279,535 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-26-020887 · tm267315-3_4seq1.xml · nonDerivative · entry 1

Schultz Yvette K · CIK 0001904142 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 697,918

F1 · shares: Each performance share unit ("PSU") represented a contingent right to receive one share of common stock ("Common Stock") of Antero Midstream Corporation (the "Issuer"). On February 24, 2026, the Compensation Committee of the Issuer certified performance and authorized settlement with respect to PSUs originally granted on April 15, 2023, which vested based on the Issuer's return on invested capital over a three year period.

F2 · balance_after: Includes 279,535 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-26-002671 · tm262857-4_4seq1.xml · nonDerivative · entry 1

DEA PETER A · CIK 0001132295 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,284

SEC source: 0001104659-26-002637 · tm262857-1_4seq1.xml · nonDerivative · entry 1

Munoz Jeffrey S. · CIK 0002043289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,880