AM

SEC source: 0001104659-23-006297 · tm234284-1_4seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,102,737

F1 · shares: In connection with the vesting and settlement of restricted stock units through the issuance of common stock of the Issuer ("Common Stock") pursuant to the Antero Midstream Corporation Long Term Incentive Plan, the Issuer withheld Common Stock that would otherwise have been issued to the Reporting Person to satisfy his tax withholding obligations. The number of shares of Common Stock withheld was determined based on the closing price per share of Common Stock on January 20, 2023.

F2 · balance_after: Includes 307,936 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-23-004631 · tm233777-1_4seq1.xml · nonDerivative · entry 1

Pearce Sheri · CIK 0001808080 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 120,378

F1 · shares: In connection with the vesting and settlement of restricted stock units through the issuance of common stock ("Common Stock") of Antero Midstream Corporation pursuant to the Antero Midstream Corporation Long Term Incentive Plan, the Issuer withheld Common Stock that would otherwise have been issued to the Reporting Person to satisfy her tax withholding obligations. The number of shares of Common Stock withheld was determined based on the closing price per share of Common Stock on January 13, 2023.

F2 · balance_after: Includes 102,430 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-23-003450 · tm233189-4_4seq1.xml · nonDerivative · entry 1

Chisholm Nancy · CIK 0001957253 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 858

SEC source: 0001104659-23-003443 · tm233189-1_4seq1.xml · nonDerivative · entry 1

DEA PETER A · CIK 0001132295 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,224

SEC source: 0001104659-23-003449 · tm233189-7_4seq1.xml · nonDerivative · entry 1

MOLLENKOPF JOHN C · CIK 0001235082 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,216

SEC source: 0001104659-23-003444 · tm233189-5_4seq1.xml · nonDerivative · entry 1

KLIMLEY BROOKS J · CIK 0001235158 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,854

SEC source: 0001104659-23-003448 · tm233189-3_4seq1.xml · nonDerivative · entry 1

KEYTE DAVID H · CIK 0001215004 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,373

SEC source: 0001104659-23-003446 · tm233189-6_4seq1.xml · nonDerivative · entry 1

MCARDLE JANINE J · CIK 0001250240 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,889

SEC source: 0001104659-23-003445 · tm233189-2_4seq1.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 124,341

SEC source: 0001104659-22-108124 · tm2228001-1_4seq1.xml · nonDerivative · entry 1

DEA PETER A · CIK 0001132295 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,299

SEC source: 0001104659-22-108133 · tm2228001-6_4seq1.xml · nonDerivative · entry 1

MOLLENKOPF JOHN C · CIK 0001235082 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,291

SEC source: 0001104659-22-108125 · tm2228001-2_4seq1.xml · nonDerivative · entry 1

KLIMLEY BROOKS J · CIK 0001235158 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,929

SEC source: 0001104659-22-108129 · tm2228001-4_4seq1.xml · nonDerivative · entry 1

KEYTE DAVID H · CIK 0001215004 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,448

SEC source: 0001104659-22-108131 · tm2228001-5_4seq1.xml · nonDerivative · entry 1

MCARDLE JANINE J · CIK 0001250240 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,964

SEC source: 0001104659-22-108127 · tm2228001-3_4seq1.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,416

SEC source: 0001104659-23-012038 · tm235725-1_5seq1.xml · nonDerivative · entry 2

RADY PAUL M · CIK 0001234637 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,943,663

F1 · shares: The reporting person transferred these shares of common stock of Antero Midstream Corporation ("Common Stock") to the Western Opportunity Fund, a charitable foundation primarily supporting Western Colorado University, of which the reporting person is Director and President.

F2 · balance_after: Includes 1,223,554 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-23-012038 · tm235725-1_5seq1.xml · nonDerivative · entry 1

RADY PAUL M · CIK 0001234637 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · shares: The reporting person transferred these shares of common stock of Antero Midstream Corporation ("Common Stock") to the Western Opportunity Fund, a charitable foundation primarily supporting Western Colorado University, of which the reporting person is Director and President.

F1 · ownership.nature: The reporting person transferred these shares of common stock of Antero Midstream Corporation ("Common Stock") to the Western Opportunity Fund, a charitable foundation primarily supporting Western Colorado University, of which the reporting person is Director and President.

SEC source: 0001104659-22-079194 · tm2220798-1_4seq1.xml · nonDerivative · entry 1

DEA PETER A · CIK 0001132295 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,928

SEC source: 0001104659-22-079200 · tm2220798-4_4seq1.xml · nonDerivative · entry 1

KLIMLEY BROOKS J · CIK 0001235158 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,558

SEC source: 0001104659-22-079203 · tm2220798-5_4seq1.xml · nonDerivative · entry 1

MCARDLE JANINE J · CIK 0001250240 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,593

SEC source: 0001104659-22-079206 · tm2220798-6_4seq1.xml · nonDerivative · entry 1

MOLLENKOPF JOHN C · CIK 0001235082 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,920

SEC source: 0001104659-22-079198 · tm2220798-3_4seq1.xml · nonDerivative · entry 1

KEYTE DAVID H · CIK 0001215004 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,077

SEC source: 0001104659-22-079196 · tm2220798-2_4seq1.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,045

SEC source: 0001140361-22-020635 · form4.xml · nonDerivative · entry 6

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.38 to $10.58, inclusive.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F6 · ownership.nature: These securities are owned directly by Yorktown Energy Partners VIII, L.P. ("Yorktown VIII"). The reporting person is a member and manager of Yorktown VIII Associates LLC, the general partner of Yorktown VIII Company LP, the general partner of Yorktown VIII.

SEC source: 0001140361-22-020635 · form4.xml · nonDerivative · entry 5

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.38 to $10.58, inclusive.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F5 · ownership.nature: These securities are owned directly by Yorktown Energy Partners VII, L.P. ("Yorktown VII"). The reporting person is a member and manager of Yorktown VII Associates LLC, the general partner of Yorktown VII Company LP, the general partner of Yorktown VII.

SEC source: 0001140361-22-020635 · form4.xml · nonDerivative · entry 4

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 147,367

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.15 to $10.36, inclusive.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F6 · ownership.nature: These securities are owned directly by Yorktown Energy Partners VIII, L.P. ("Yorktown VIII"). The reporting person is a member and manager of Yorktown VIII Associates LLC, the general partner of Yorktown VIII Company LP, the general partner of Yorktown VIII.

SEC source: 0001140361-22-020635 · form4.xml · nonDerivative · entry 3

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 95,501

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.15 to $10.36, inclusive.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F5 · ownership.nature: These securities are owned directly by Yorktown Energy Partners VII, L.P. ("Yorktown VII"). The reporting person is a member and manager of Yorktown VII Associates LLC, the general partner of Yorktown VII Company LP, the general partner of Yorktown VII.

SEC source: 0001140361-22-020635 · form4.xml · nonDerivative · entry 2

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 328,806

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.17 to $10.40, inclusive. The reporting person undertakes 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 footnotes (2), (3) and (4).

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F6 · ownership.nature: These securities are owned directly by Yorktown Energy Partners VIII, L.P. ("Yorktown VIII"). The reporting person is a member and manager of Yorktown VIII Associates LLC, the general partner of Yorktown VIII Company LP, the general partner of Yorktown VIII.

SEC source: 0001140361-22-020635 · form4.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 213,081

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.17 to $10.40, inclusive. The reporting person undertakes 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 footnotes (2), (3) and (4).

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F5 · ownership.nature: These securities are owned directly by Yorktown Energy Partners VII, L.P. ("Yorktown VII"). The reporting person is a member and manager of Yorktown VII Associates LLC, the general partner of Yorktown VII Company LP, the general partner of Yorktown VII.

SEC source: 0001140361-22-020126 · form4.xml · nonDerivative · entry 6

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 481,105

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.15 to $10.23, inclusive.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F6 · ownership.nature: These securities are owned directly by Yorktown VIII ("Yorktown VIII"). The reporting person is a member and manager of Yorktown VIII Associates, the general partner of Yorktown VIII Company, the general partner of Yorktown VIII.

SEC source: 0001140361-22-020126 · form4.xml · nonDerivative · entry 5

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 311,778

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.15 to $10.23, inclusive.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F5 · ownership.nature: These securities are owned directly by Yorktown VII ("Yorktown VII"). The reporting person is a member and manager of Yorktown VII Associates, the general partner of Yorktown VII Company, the general partner of Yorktown VII.

SEC source: 0001140361-22-020126 · form4.xml · nonDerivative · entry 4

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 522,671

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.09 to $10.30, inclusive.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F6 · ownership.nature: These securities are owned directly by Yorktown VIII ("Yorktown VIII"). The reporting person is a member and manager of Yorktown VIII Associates, the general partner of Yorktown VIII Company, the general partner of Yorktown VIII.

SEC source: 0001140361-22-020126 · form4.xml · nonDerivative · entry 3

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 338,714

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.09 to $10.30, inclusive.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F5 · ownership.nature: These securities are owned directly by Yorktown VII ("Yorktown VII"). The reporting person is a member and manager of Yorktown VII Associates, the general partner of Yorktown VII Company, the general partner of Yorktown VII.

SEC source: 0001140361-22-020126 · form4.xml · nonDerivative · entry 2

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 797,998

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.18 to $10.67, inclusive. The reporting person undertakes 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 footnotes (2), (3) and (4).

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F6 · ownership.nature: These securities are owned directly by Yorktown VIII ("Yorktown VIII"). The reporting person is a member and manager of Yorktown VIII Associates, the general partner of Yorktown VIII Company, the general partner of Yorktown VIII.

SEC source: 0001140361-22-020126 · form4.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 517,138

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.18 to $10.67, inclusive. The reporting person undertakes 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 footnotes (2), (3) and (4).

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F5 · ownership.nature: These securities are owned directly by Yorktown VII ("Yorktown VII"). The reporting person is a member and manager of Yorktown VII Associates, the general partner of Yorktown VII Company, the general partner of Yorktown VII.

SEC source: 0001104659-22-059595 · tm2215430-1_4seq1.xml · nonDerivative · entry 1

KEYTE DAVID H · CIK 0001215004 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,587

SEC source: 0001104659-22-056605 · tm2214661-1_4seq1.xml · nonDerivative · entry 2

Krueger Brendan E. · CIK 0001860656 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 287,430

F2 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $10.39 to $10.69, inclusive.

F3 · balance_after: Includes 203,527 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-056605 · tm2214661-1_4seq1.xml · nonDerivative · entry 1

Krueger Brendan E. · CIK 0001860656 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 280,430

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $10.52 to $10.59, inclusive. The reporting person undertakes to provide to Antero Midstream Corporation, any securityholder 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 footnotes (1) and (2) to this Form 4.

F3 · balance_after: Includes 203,527 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-047481 · tm2213053-3_4seq1.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 45,904 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Each performance share unit ("PSU") represented a contingent right to receive one share of Common Stock. On April 18, 2022, the Compensation Committee of the Issuer certified performance with respect to these PSUs originally granted on April 15, 2019, which vested based on the Issuer's return on invested capital over a three year period.

F5 · price: Each performance share unit ("PSU") represented a contingent right to receive one share of Common Stock. On April 18, 2022, the Compensation Committee of the Issuer certified performance with respect to these PSUs originally granted on April 15, 2019, which vested based on the Issuer's return on invested capital over a three year period.

F5 · derivative.exercise_date: Each performance share unit ("PSU") represented a contingent right to receive one share of Common Stock. On April 18, 2022, the Compensation Committee of the Issuer certified performance with respect to these PSUs originally granted on April 15, 2019, which vested based on the Issuer's return on invested capital over a three year period.

F5 · derivative.expiration_date: Each performance share unit ("PSU") represented a contingent right to receive one share of Common Stock. On April 18, 2022, the Compensation Committee of the Issuer certified performance with respect to these PSUs originally granted on April 15, 2019, which vested based on the Issuer's return on invested capital over a three year period.

SEC source: 0001104659-22-047481 · tm2213053-3_4seq1.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,146,538

F6 · shares: In connection with the vesting and settlement of PSUs through the issuance of Common Stock pursuant to the 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 April 18, 2022.

F4 · balance_after: Includes 406,156 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-047481 · tm2213053-3_4seq1.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,166,727

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · price: Each performance share unit ("PSU") represented a contingent right to receive one share of Common Stock. On April 18, 2022, the Compensation Committee of the Issuer certified performance with respect to these PSUs originally granted on April 15, 2019, which vested based on the Issuer's return on invested capital over a three year period.

F4 · balance_after: Includes 406,156 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-047485 · tm2213053-5_4seq1.xml · derivative · entry 6

RADY PAUL M · CIK 0001234637 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 155,368 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: In connection with the vesting and settlement of PSUs through the issuance of Common Stock pursuant to the 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 April 18, 2022.

F5 · price: Each performance share unit ("PSU") represented a contingent right to receive one share of Common Stock. On April 18, 2022, the Compensation Committee of the Issuer certified performance with respect to these PSUs originally granted on April 15, 2019, which vested based on the Issuer's return on invested capital over a three year period.

F5 · derivative.exercise_date: Each performance share unit ("PSU") represented a contingent right to receive one share of Common Stock. On April 18, 2022, the Compensation Committee of the Issuer certified performance with respect to these PSUs originally granted on April 15, 2019, which vested based on the Issuer's return on invested capital over a three year period.

F5 · derivative.expiration_date: Each performance share unit ("PSU") represented a contingent right to receive one share of Common Stock. On April 18, 2022, the Compensation Committee of the Issuer certified performance with respect to these PSUs originally granted on April 15, 2019, which vested based on the Issuer's return on invested capital over a three year period.

F5 · derivative.underlying_shares: Each performance share unit ("PSU") represented a contingent right to receive one share of Common Stock. On April 18, 2022, the Compensation Committee of the Issuer certified performance with respect to these PSUs originally granted on April 15, 2019, which vested based on the Issuer's return on invested capital over a three year period.

SEC source: 0001104659-22-047485 · tm2213053-5_4seq1.xml · nonDerivative · entry 4

RADY PAUL M · CIK 0001234637 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,507,657

F6 · shares: In connection with the vesting and settlement of PSUs through the issuance of Common Stock pursuant to the 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 April 18, 2022.

F4 · balance_after: Includes 1,223,555 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-047485 · tm2213053-5_4seq1.xml · nonDerivative · entry 3

RADY PAUL M · CIK 0001234637 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,575,988

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · price: Each performance share unit ("PSU") represented a contingent right to receive one share of Common Stock. On April 18, 2022, the Compensation Committee of the Issuer certified performance with respect to these PSUs originally granted on April 15, 2019, which vested based on the Issuer's return on invested capital over a three year period.

F4 · balance_after: Includes 1,223,555 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-047483 · tm2213053-4_4seq1.xml · nonDerivative · entry 2

Pearce Sheri · CIK 0001808080 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,373

F3 · shares: Reflects the grant of restricted stock units pursuant to the Plan which vest as to 1/3 of the total amount granted on each of the first three anniversaries of April 15, 2022, subject to continued employment through each vesting date.

F4 · balance_after: Includes 104,449 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-047483 · tm2213053-4_4seq1.xml · nonDerivative · entry 1

Pearce Sheri · CIK 0001808080 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,317

F1 · shares: In connection with the vesting and settlement of restricted stock units through the issuance of common stock ("Common Stock") of Antero Midstream Corporation (the "Issuer") pursuant to the Antero Midstream Corporation Long Term Incentive Plan (the "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 April 14, 2022.

F2 · balance_after: Includes 42,393 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-047481 · tm2213053-3_4seq1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,120,823

F3 · shares: Reflects the grant of restricted stock units pursuant to the Plan which vest as to 1/3 of the total amount granted on each of the first three anniversaries of April 15, 2022, subject to continued employment through each vesting date.

F4 · balance_after: Includes 406,156 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-047481 · tm2213053-3_4seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 904,733

F1 · shares: In connection with the vesting and settlement of restricted stock units through the issuance of common stock ("Common Stock") of Antero Midstream Corporation (the "Issuer") pursuant to the Antero Midstream Corporation Long Term Incentive Plan (the "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 April 14, 2022.

F2 · balance_after: Includes 190,066 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-047478 · tm2213053-1_4seq1.xml · nonDerivative · entry 2

Krueger Brendan E. · CIK 0001860656 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 277,430

F3 · shares: Reflects the grant of restricted stock units pursuant to the Plan which vest as to 1/3 of the total amount granted on each of the first three anniversaries of April 15, 2022, subject to continued employment through each vesting date.

F4 · balance_after: Includes 203,527 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-22-047478 · tm2213053-1_4seq1.xml · nonDerivative · entry 1

Krueger Brendan E. · CIK 0001860656 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 144,452

F1 · shares: In connection with the vesting and settlement of restricted stock units through the issuance of common stock ("Common Stock") of Antero Midstream Corporation (the "Issuer") pursuant to the Antero Midstream Corporation Long Term Incentive Plan (the "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 April 14, 2022.

F2 · balance_after: Includes 70,549 shares of Common Stock subject to previously granted restricted stock unit awards that remain subject to vesting.