| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Stice Travis D. | Executive Chairman, Director | 500 WEST TEXAS AVENUE, SUITE 100, MIDLAND | /s/ Matt Zmigrosky, as attorney-in-fact for Travis D. Stice | 10 Mar 2026 | 0001559933 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FANG | Common Stock | Sale | $11,377,745 | -62,808 | -17% | $181.15 | 306,463 | 06 Mar 2026 | By Stice Investments, Ltd. | F1, F2 |
| transaction | FANG | Common Stock | Sale | $208,741 | -1,149 | -0.37% | $181.67 | 305,314 | 06 Mar 2026 | By Stice Investments, Ltd. | F2, F3 |
| transaction | FANG | Common Stock | Sale | $6,349,778 | -35,070 | -22% | $181.06 | 124,718 | 06 Mar 2026 | Direct | F4 |
| transaction | FANG | Common Stock | Sale | $176,771 | -973 | -0.78% | $181.68 | 123,745 | 06 Mar 2026 | Direct | F5 |
| Id | Content |
|---|---|
| F1 | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $180.59 per share to $181.56 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., 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 and in footnote 3. |
| F2 | These securities are held by Stice Investments, Ltd., which is managed by Stice Management, LLC, its general partner. Mr. Stice and his spouse hold 100% of the membership interests in Stice Management, LLC, of which Mr. Stice is the manager. |
| F3 | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $181.60 per share to $181.77 per share, inclusive. |
| F4 | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $180.57 per share to $181.56 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., 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 and in footnote 5. |
| F5 | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $181.57 per share to $181.785 per share, inclusive. |