144 0001237636 XXXXXXXX LIVE 0002024218 Summit Midstream Corp 001-42201 910 LOUISIANA STREET, SUITE 4200 HOUSTON TX 77002 832-413-4770 PETERS JERRY L Director Common Charles Schwab Corporation

3000 Schwab Way Westlake TX 76262

10000 317000.00 13814286 05/18/2026 NYSE Common 03/15/2022 Director Compensation Grant Issuer N 1675 03/15/2022 Equity Compensation Common 03/15/2023 Director Compensation Grant Issuer N 1530 03/15/2023 Equity Compensation Common 03/14/2025 Director Compensation Grant Issuer N 3062 03/14/2025 Equity Compensation Common 03/16/2026 Director Compensation Grant Issuer N 3733 03/16/2026 Equity Compensation Y Shares to be sold in JERRY L PETERS AND KARI A PETERS REVOCABLE TRUST 05/18/2026 JERRY L PETERS