| As Of | Filing | | Doc. | | Page | | Title | Docs. |
|---|
| | |  |
| 3/4/24 | | DEF 14A | | | | 1 | | A-1 | 2 |
| 7/7/23 | | S-3ASR | | | | 1 | | About This Prospectus | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Additional Information | 2 |
| | | | | | 1 | | Advisory Vote on the Compensation of the Company's Named Executive Officers for 2023 (Say-On-Pay) | 2 |
| 6/22/23 | | 11-K | | | | 1 | | And 202 | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Appendices | 2 |
| | | | | | 1 | | Appendix A -- Non-GAAP Financial Information | 2 |
| | | | | | 1 | | Appendix B -- Equitrans Midstream Corporation 2024 Long-Term Incentive Plan | 2 |
| | | | | | 1 | | Appendix C -- Proposed Amendments to Fifth Amended and Restated Bylaws | 2 |
| | | | | | 1 | | Approval of an Amendment to the Company's Bylaws to Reflect New Pennsylvania Law Provisions Regarding Officer Exculpation | 2 |
| | | | | | 1 | | Approval of the Equitrans Midstream Corporation 2024 Long-Term Incentive Plan | 2 |
| | | | | | 1 | | B-1 | 2 |
| | | | | | 1 | | Board Leadership Structure | 2 |
| | | | | | 1 | | Board Meetings and Committees | 2 |
| | | | | | 1 | | Board's Role in Risk Oversight | 2 |
| 2/20/24 | | 10-K | | | | 1 | | Business | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | C-1 | 2 |
| 7/7/23 | | S-3ASR | | | | 1 | | Cautionary Note Regarding Forward-Looking Statements | 1 |
| 2/20/24 | | 10-K | | | | 1 | | Cautionary Statements | 1 |
| | | | | | 1 | | Certain Relationships and Related Transactions and Director Independence | 1 |
| | | | | | 1 | | Changes in and Disagreements with Accountants on Accounting and Financial Disclosure | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Compensation Committee Interlocks and Insider Participation | 2 |
| | | | | | 1 | | Compensation Discussion and Analysis | 2 |
| | | | | | 1 | | Compensation Philosophy and Practices | 2 |
| | | | | | 1 | | Compensation Process | 2 |
| 8/1/23 | | 10-Q | | | | 1 | | Consolidated Balance Sheets as of June 30, 2023 and December 31, 2022 | 1 |
| 5/2/23 | | 10-Q | | | | 1 | | Consolidated Balance Sheets as of March 31, 2023 and December 31, 2022 | 1 |
| 10/31/23 | | 10-Q | | | | 1 | | Consolidated Balance Sheets as of September 30, 2023 and December 31, 2022 | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Contacting the Board | 2 |
| 2/20/24 | | 10-K | | | | 1 | | Controls and Procedures | 4 |
| 3/4/24 | | DEF 14A | | | | 1 | | Corporate Governance and Board Matters | 2 |
| | | | | | 1 | | Corporate Secretary Contact Information | 2 |
| 2/20/24 | | 10-K | | | | 1 | | Cybersecurity | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Deferred Compensation | 2 |
| 7/7/23 | | S-3ASR | | | | 1 | | Description of Capital Stock | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Director Nominations | 2 |
| | | | | | 1 | | Director Nominees | 2 |
| | | | | | 1 | | Directors' Compensation | 2 |
| 2/20/24 | | 10-K | | | | 1 | | Directors, Executive Officers and Corporate Governance | 1 |
| | | | | | 1 | | Disclosure Regarding Foreign Jurisdictions that Prevent Inspections | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Election of Directors | 2 |
| | | | | | 1 | | Employee, Officer and Director Hedging | 2 |
| | | | | | 1 | | Equitrans Midstream Corporation 2024 Long-Term Incentive Plan | 2 |
| | | | | | 1 | | Equitrans Midstream Corporation Directors' Deferred Compensation Plan | 2 |
| | | | | | 1 | | Equity Ownership | 2 |
| | | | | | 1 | | Equity Ownership of Directors and Executive Officers | 2 |
| | | | | | 1 | | Equity-Based Compensation | 2 |
| 2/20/24 | | 10-K | | | | 1 | | Executive Compensation | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Executive Compensation Information | 2 |
| | | | | | 1 | | Executive Compensation Tables | 2 |
| | | | | | 1 | | Executive Summary | 2 |
| 10/31/23 | | 10-Q | | | | 1 | | Exhibits | 3 |
| 2/20/24 | | 10-K | | | | 1 | | Exhibits and Financial Statement Schedules | 1 |
| 7/7/23 | | S-3ASR | | | | 1 | | Experts | 1 |
| 10/31/23 | | 10-Q | | | | 1 | | Financial Information | 3 |
| | | | | | 1 | | Financial Statements (Unaudited) | 3 |
| 2/20/24 | | 10-K | | | | 1 | | Financial Statements and Supplementary Data | 1 |
| 7/7/23 | | S-3ASR | | | | 1 | | Global Securities | 1 |
| 2/20/24 | | 10-K | | | | 1 | | Glossary of Commonly Used Terms, Abbreviations and Measurements | 4 |
| 3/4/24 | | DEF 14A | | | | 1 | | Governance Principles | 2 |
| | | | | | 1 | | How We Determine Executive Compensation | 2 |
| 6/22/23 | | 11-K | | | | 1 | | Index to Exhibit | 1 |
| 2/20/24 | | 10-K | | | | 1 | | Information About Our Executive Officers | 1 |
| | | | | | 1 | | Item 1 | 4 |
| | | | | | 1 | | Item 10 | 1 |
| | | | | | 1 | | Item 11 | 1 |
| | | | | | 1 | | Item 12 | 1 |
| | | | | | 1 | | Item 13 | 1 |
| | | | | | 1 | | Item 14 | 1 |
| | | | | | 1 | | Item 15 | 1 |
| | | | | | 1 | | Item 1A | 4 |
| | | | | | 1 | | Item 1B | 1 |
| | | | | | 1 | | Item 1C | 1 |
| | | | | | 1 | | Item 2 | 4 |
| | | | | | 1 | | Item 3 | 4 |
| | | | | | 1 | | Item 4 | 4 |
| | | | | | 1 | | Item 5 | 3 |
| | | | | | 1 | | Item 6 | 4 |
| | | | | | 1 | | Item 7 | 1 |
| | | | | | 1 | | Item 7A | 1 |
| | | | | | 1 | | Item 8 | 1 |
| | | | | | 1 | | Item 9 | 1 |
| | | | | | 1 | | Item 9A | 1 |
| | | | | | 1 | | Item 9B | 1 |
| | | | | | 1 | | Item 9C | 1 |
| 7/7/23 | | S-3ASR | | | | 1 | | Legal Matters | 1 |
| 2/20/24 | | 10-K | | | | 1 | | Legal Proceedings | 4 |
| | | | | | 1 | | Management's Discussion and Analysis of Financial Condition and Results of Operations | 4 |
| | | | | | 1 | | Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities | 1 |
| | | | | | 1 | | Mine Safety Disclosures | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Narrative Disclosure to Summary Compensation Table and 2023 Grants of Plan-Based Awards Table | 2 |
| | | | | | 1 | | Non-GAAP Financial Information | 2 |
| 10/31/23 | | 10-Q | | | | 1 | | Notes to Consolidated Financial Statements | 3 |
| 6/22/23 | | 11-K | | | | 1 | | Notes to Financial Statements | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Notice of Internet Availability of Proxy Materials | 2 |
| | | | | | 1 | | Other | 2 |
| | | | | | 1 | | Other Considerations Important to Our Compensation Program | 2 |
| 2/20/24 | | 10-K | | | | 1 | | Other Information | 4 |
| 3/4/24 | | DEF 14A | | | | 1 | | Other Matters | 2 |
| | | | | | 1 | | Our 2023 Named Executive Officers | 2 |
| | | | | | 1 | | Outstanding Equity Awards at Fiscal Year-End | 2 |
| 10/31/23 | | 10-Q | | | | 1 | | Part I | 3 |
| | | | | | 1 | | Part II | 3 |
| 3/4/24 | | DEF 14A | | | | 1 | | Participating in the Annual Meeting | 2 |
| | | | | | 1 | | Pay Ratio Disclosure | 2 |
| | | | | | 1 | | Pay Versus Performance | 2 |
| 7/7/23 | | S-3ASR | | | | 1 | | Plan of Distribution | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Potential Payments Upon Termination or Change of Control | 2 |
| 7/7/23 | | S-3ASR | | | | 1 | | Powers of Attorney (incorporated by reference to the signature page hereto) | 1 |
| 2/20/24 | | 10-K | | | | 1 | | Principal Accounting Fees and Services | 1 |
| | | | | | 1 | | Properties | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Proposals, Board Recommendations, Vote Required, and Broker Non-Votes | 2 |
| | | | | | 1 | | Proposed Amendments to Fifth Amended and Restated Bylaws | 2 |
| | | | | | 1 | | Proxy Statement Summary | 2 |
| 2/20/24 | | 10-K | | | | 1 | | Quantitative and Qualitative Disclosures About Market Risk | 4 |
| 3/4/24 | | DEF 14A | | | | 1 | | Ratification of Appointment of Independent Registered Public Accounting Firm | 2 |
| 6/22/23 | | 11-K | | | | 1 | | Report of Independent Registered Public Accounting Firm | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Report of the Audit Committee | 2 |
| | | | | | 1 | | Report of the Human Capital and Compensation Committee | 2 |
| 2/20/24 | | 10-K | | | | 1 | | Reserved | 1 |
| | | | | | 1 | | Risk Factors | 5 |
| 6/22/23 | | 11-K | | | | 1 | | Schedule H, Line 4i -- Schedule of Assets (Held at End of Year) | 1 |
| | | | | | 1 | | Schedule of Assets (Held at End of Year) | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Securities Authorized for Issuance Under Equity Compensation Plans | 2 |
| 2/20/24 | | 10-K | | | | 1 | | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters | 1 |
| 7/7/23 | | S-3ASR | | | | 1 | | Selling Shareholders | 1 |
| 10/31/23 | | 10-Q | | | | 1 | | Signature | 4 |
| 2/20/24 | | 10-K | | | | 1 | | Signatures | 1 |
| 6/22/23 | | 11-K | | | | 1 | | Statement of Changes in Net Assets Available for Benefits for the year ended December 31, 202 | 1 |
| 10/31/23 | | 10-Q | | | | 1 | | Statements of Consolidated Cash Flows for the Nine Months Ended September 30, 2023 and 2022 | 1 |
| 8/1/23 | | 10-Q | | | | 1 | | Statements of Consolidated Cash Flows for the Six Months Ended June 30, 2023 and 2022 | 1 |
| 5/2/23 | | 10-Q | | | | 1 | | Statements of Consolidated Cash Flows for the Three Months Ended March 31, 2023 and 2022 | 1 |
| 10/31/23 | | 10-Q | | | | 1 | | Statements of Consolidated Comprehensive Income for the Three and Nine Months Ended September 30, 2023 and 2022 | 1 |
| 8/1/23 | | 10-Q | | | | 1 | | Statements of Consolidated Comprehensive Income for the Three and Six Months Ended June 30, 2023 and 2022 | 1 |
| 5/2/23 | | 10-Q | | | | 1 | | Statements of Consolidated Comprehensive Income for the Three Months Ended March 31, 2023 and 2022 | 1 |
| 10/31/23 | | 10-Q | | | | 1 | | Statements of Consolidated Equity and Mezzanine Equity for the Three and Nine Months Ended September 30, 2023 and 2022 | 1 |
| 8/1/23 | | 10-Q | | | | 1 | | Statements of Consolidated Equity and Mezzanine Equity for the Three and Six Months Ended June 30, 2023 and 2022 | 1 |
| 5/2/23 | | 10-Q | | | | 1 | | Statements of Consolidated Equity and Mezzanine Equity for the Three Months Ended March 31, 2023 and 2022 | 1 |
| 6/22/23 | | 11-K | | | | 1 | | Statements of Net Assets Available for Benefits as of December 31, 202 | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Stock Ownership Guidelines | 2 |
| | | | | | 1 | | Stock Ownership of Significant Shareholders | 2 |
| | | | | | 1 | | Stock Vested | 2 |
| 7/7/23 | | S-3ASR | | | | 1 | | Summary | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Summary Compensation Table | 2 |
| 6/22/23 | | 11-K | | | | 1 | | Supplementary Financial Information | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Table of Contents | 7 |
| 10/31/23 | | 10-Q | | | | 1 | | Unregistered Sales of Equity Securities and Use of Proceeds | 3 |
| 2/20/24 | | 10-K | | | | 1 | | Unresolved Staff Comments | 1 |
| 7/7/23 | | S-3ASR | | | | 1 | | Use of Proceeds | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | Voting Instructions | 2 |
| 7/7/23 | | S-3ASR | | | | 1 | | Where You Can Find More Information; Incorporation by Reference | 1 |
| 2/20/24 | | 10-K | | | | 1 | | 131 | 1 |
| | | | | | 1 | | 133 | 1 |
| | | | | | 1 | | 134 | 1 |
| | | | | | 1 | | 142 | 1 |
| 3/4/24 | | DEF 14A | | | | 1 | | 2023 Compensation Program Elements | 2 |
| | | | | | 1 | | 2023 Directors' Compensation Table | 2 |
| | | | | | 1 | | 2023 Grants of Plan-Based Awards Table | 2 |
