# EDGAR Filing Document

**Accession Number:** 0001539838
**File Stem:** 0001539838-25-000131
**Filing Date:** 2025-8
**Character Count:** 9538
**Document Hash:** b8539ad296f720d24bec628c3fe2e324
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001539838-25-000131.hdr.sgml**: 20250811

**ACCESSION NUMBER**: 0001539838-25-000131

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250807

**FILED AS OF DATE**: 20250811

**DATE AS OF CHANGE**: 20250811

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Stice Travis D.
- **CENTRAL INDEX KEY:** 0001559933

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-35700
- **FILM NUMBER:** 251201915

**MAIL ADDRESS:**
- **STREET 1:** 500 WEST TEXAS
- **STREET 2:** SUITE 100
- **CITY:** MIDLAND
- **STATE:** TX
- **ZIP:** 79701
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Diamondback Energy, Inc.
- **CENTRAL INDEX KEY:** 0001539838
- **STANDARD INDUSTRIAL CLASSIFICATION:** CRUDE PETROLEUM & NATURAL GAS [1311]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 500 WEST TEXAS AVENUE
- **STREET 2:** SUITE 100
- **CITY:** MIDLAND
- **STATE:** TX
- **ZIP:** 79701
- **BUSINESS PHONE:** 432-221-7400

**MAIL ADDRESS:**
- **STREET 1:** 500 WEST TEXAS AVENUE
- **STREET 2:** SUITE 100
- **CITY:** MIDLAND
- **STATE:** TX
- **ZIP:** 79701

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Stice Travis D.<br><sub>(Last) (First) (Middle)</sub><br>500 WEST TEXAS AVENUE<br>SUITE 100<br><sub>(Street)</sub><br>MIDLAND, TX 79701<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-08-07 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Executive Chairman_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Diamondback Energy, Inc. [ FANG ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2025-08-07 |  | S |  | 4478<sup>(1)</sup> | D | 141.3635<sup>(2)</sup> | 15922 | I<sup>(3)</sup> | TBS Legacy Investments, Ltd.<sup>(3)</sup> |
| Common Stock | 2025-08-07 |  | S |  | 10223<sup>(1)</sup> | D | 142.3668<sup>(4)</sup> | 5699 | I<sup>(3)</sup> | TBS Legacy Investments, Ltd.<sup>(3)</sup> |
| Common Stock | 2025-08-07 |  | S |  | 2478<sup>(1)</sup> | D | 143.5437<sup>(5)</sup> | 3221 | I<sup>(3)</sup> | TBS Legacy Investments, Ltd.<sup>(3)</sup> |
| Common Stock | 2025-08-07 |  | S |  | 1292<sup>(1)</sup> | D | 144.4238<sup>(6)</sup> | 1929 | I<sup>(3)</sup> | TBS Legacy Investments, Ltd.<sup>(3)</sup> |
| Common Stock | 2025-08-07 |  | S |  | 975<sup>(1)</sup> | D | 145.6476<sup>(7)</sup> | 954 | I<sup>(3)</sup> | TBS Legacy Investments, Ltd.<sup>(3)</sup> |
| Common Stock | 2025-08-07 |  | S |  | 474<sup>(1)</sup> | D | 146.6345<sup>(8)</sup> | 480 | I<sup>(3)</sup> | TBS Legacy Investments, Ltd.<sup>(3)</sup> |
| Common Stock | 2025-08-07 |  | S |  | 480<sup>(1)</sup> | D | 147.4388<sup>(9)</sup> | 0 | I<sup>(3)</sup> | TBS Legacy Investments, Ltd.<sup>(3)</sup> |
| Common Stock |  |  |  |  |  |  |  | 102145 | D |  |
| Common Stock |  |  |  |  |  |  |  | 419271 | I<sup>(10)</sup> | By Stice Investments, Ltd.<sup>(10)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) These securities were sold by TBS Legacy Investments, Ltd. in which the Stice 2023 Children's Trust holds 100% of the limited partnership units. Mr. Stice's adult children are the beneficiaries of the Stice 2023 Children's Trust.

(2) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $140.91 per share to $141.89 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 footnotes 4 through 9.

(3) The Stice 2023 Children's Trust for the benefit of Mr. Stice's adult children is the limited partner of TBS Legacy Investments, Ltd. Mr. Stice and his spouse serve as the trustees of the Stice 2023 Children's Trust and, as a result, may be deemed to have beneficial ownership of the securities in which their adult children have a pecuniary interest. Further, Stice Management, LLC serves as the general partner of TBS Legacy Investments, Ltd. Mr. Stice and his spouse hold 100% of the membership interests in Stice Management, LLC, of which Mr. Stice is the manager.

(4) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $141.92 per share to $142.91 per share, inclusive.

(5) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $143.00 per share to $143.92 per share, inclusive.

(6) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $144.025 per share to $145.00 per share, inclusive.

(7) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $145.08 per share to $146.025 per share, inclusive.

(8) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $146.165 per share to $147.08 per share, inclusive.

(9) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $147.36 per share to $147.51 per share, inclusive.

(10) 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.

**Signature:** /s/ Teresa L. Dick, as attorney-in-fact for Travis D. Stice  
**Date:** 2025-08-11

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**