# EDGAR Filing Document

**Accession Number:** 0001539838
**File Stem:** 0001602065-25-000100
**Filing Date:** 2025-8
**Character Count:** 9395
**Document Hash:** 970b4ff88ab505e327c61cb5df4b0864
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001602065-25-000100.hdr.sgml**: 20250819

**ACCESSION NUMBER**: 0001602065-25-000100

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250819

**FILED AS OF DATE**: 20250819

**DATE AS OF CHANGE**: 20250819

**REPORTING-OWNER**: 

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

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36505
- **FILM NUMBER:** 251233311

**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
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** VNOM Sub, Inc.
- **CENTRAL INDEX KEY:** 0001602065
- **STANDARD INDUSTRIAL CLASSIFICATION:** CRUDE PETROLEUM & NATURAL GAS [1311]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 465001985
- **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

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Viper Energy, Inc.
- **DATE OF NAME CHANGE:** 20231109

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Viper Energy Partners LP
- **DATE OF NAME CHANGE:** 20140307

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[x] 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>Diamondback Energy, Inc.<br><sub>(Last) (First) (Middle)</sub><br>500 WEST TEXAS AVENUE, 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>2025-08-19 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [X] Other (specify below)<br>_Director by Deputization_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>VNOM Sub, Inc. [ VNOM ] | **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 |
|  |  |  |  |  |  |  |  |  |  |  |

---

## 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 |
| Class B Common Stock | <sup>(1)</sup> | 2025-08-19 |  | D |  |  | 77364925 | <sup>(1)</sup> | <sup>(1)</sup> | Class A Common Stock | 77364925 | <sup>(2)</sup> | 0 | D |  |
| Operating Company Units | <sup>(1)</sup> | 2025-08-19 |  | D |  |  | 77364925 | <sup>(1)</sup> | <sup>(1)</sup> | Class A Common Stock | 77364925 | <sup>(2)</sup> | 0 | D |  |
| Class B Common Stock | 0<sup>(1)</sup> | 2025-08-19 |  | D |  |  | 69626640 | <sup>(1)</sup> | <sup>(1)</sup> | Class A Common Stock | 69626640 | <sup>(2)</sup> | 0 | I | See Footnote<sup>(3)</sup> |
| Operating Company Units | 0<sup>(1)</sup> | 2025-08-19 |  | D |  |  | 69626640 | <sup>(1)</sup> | <sup>(1)</sup> | Class A Common Stock | 69626640 | <sup>(2)</sup> | 0 | I | See footnote<sup>(3)</sup> |
| Class B Common Stock | <sup>(1)</sup> | 2025-08-19 |  | D |  |  | 8066528 | <sup>(1)</sup> | <sup>(1)</sup> | Class A Common Stock | 8066528 | <sup>(2)</sup> | 0 | I | See Footnote<sup>(4)</sup> |
| Operating Company Units | <sup>(1)</sup> | 2025-08-19 |  | D |  |  | 8066528 | <sup>(1)</sup> | <sup>(1)</sup> | Class A Common Stock | 8066528 | <sup>(2)</sup> | 0 | I | See footnote<sup>(4)</sup> |

---

### Footnotes:

(1) These derivatives securities are represented by (i) shares of Class B Common Stock, par value $001 per share (the "Class B Common Stock"), of VNOM Sub, Inc. (f/k/a Viper Energy, Inc.) (the "Issuer") and (ii) an equal number of units representing limited liability company interests ("Operating Company Units") in Viper Energy Partners LLC, the Issuer's operating company (the "Operating Company"). The Operating Company Units and shares of Class B Common Stock are exchangeable from time to time, at the discretion of their holders, for an equivalent number of shares of the Issuer's Class A common stock, par value $001 per share (the "Class A Common Stock") (that is, one Operating Company Unit and one share of Class B Common Stock, together, are exchangeable for one share of Class A Common Stock).

(2) Pursuant to the Agreement and Plan of Merger (the "Sitio Merger Agreement"), dated June 2, 2025, by and among VNOM Sub, Inc. (f/k/a Viper Energy, Inc.) ("Viper"), Sitio Royalties Corp., Sitio Royalties Operating Partnership, LP, a subsidiary of Sitio, Viper Energy, Inc. (f/k/a New Cobra Pubco Inc.), a wholly owned subsidiary of Viper ("New Viper"), Cobra Merger Sub, Inc., a wholly owned subsidiary of New Viper ("Viper Merger Sub") and Scorpion Merger Sub, Inc., a wholly owned subsidiary of New Viper, upon close of the Sitio Merger Agreement Viper Merger Sub will merge with and into Viper, with Viper continuing as the surviving corporation and a wholly owned subsidiary of New Viper (the "Viper Pubco Merger"). At the effective time of the Viper Pubco Merger, each share of Viper's Class A Common Stock then issued and outstanding will be cancelled and automatically converted into one share of New Viper's Class A common stock.

(3) 69,626,640 shares of Class B Common Stock and 69,626,640 Operating Company Units are held by Endeavor Energy Resources, L.P., a wholly-owned subsidiary of the Reporting Person.

(4) 8,066,528 shares of Class B Common Stock and 8,066,528 Operating Company Units are held by Diamondback E&P LLC, a wholly-owned subsidiary of the Reporting Person.

**Signature:** /s/ Teresa L. Dick as Executive Vice President, Chief Accounting Officer and Assistant Secretary of Diamondback Energy, Inc.  
**Date:** 2025-08-19

### 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.**