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Diamondback adjusts Viper Energy (VNOM) stake after March secondary sale

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13D/A

Rhea-AI Filing Summary

Diamondback Energy amended its ownership filing for Viper Energy to reflect a March 2026 secondary share sale and updated structure. Diamondback agreed to sell 12,391,304 Viper Class A shares at $45.69 per share, with underwriters holding a 30-day option for up to 2,163,958 additional shares.

After the transaction, Diamondback beneficially owned 142,666,789 shares of Class A common stock, or 42.4% of the class, based on 194,114,585 shares outstanding as of March 4, 2026. Its subsidiaries Diamondback E&P and Endeavor held additional exchangeable Class B shares and New OpCo units under a new LLC agreement that permits one-for-one exchanges into Class A shares or, in some cases, cash redemptions.

Positive

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Insights

Large holder trims stake via secondary sale while retaining significant control.

Diamondback Energy updated its Viper Energy stake after a $45.69-per-share secondary sale of 12,391,304 Class A shares. The transaction was underwritten by major banks with a 30-day option for up to 2,163,958 additional shares, indicating organized distribution through the capital markets.

Post-transaction, Diamondback still beneficially owns 142,666,789 Class A shares, representing 42.4% of Viper’s outstanding Class A stock as of March 4, 2026, so it remains a dominant shareholder. Subsidiaries Diamondback E&P and Endeavor hold Class B shares and New OpCo units exchangeable into Class A, preserving potential future equity influence.

The new New OpCo LLC Agreement formalizes mechanics for exchanging or redeeming Paired Units into Class A shares or, subject to member consent, cash based on a 20-day average price. Future ownership levels and float will depend on how often these exchange and redemption rights are exercised over time.






Teresa L. Dick
Diamondback Energy, Inc., 900 NW 63rd Street, Suite 200
Oklahoma City, OK, 73116
(432) 221-7400


Zachary S. Podolsky
Latham & Watkins LLP, 1271 Avenue of the Americas
New York, NY, 10020
(212) 906-1200

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
03/02/2026

(Date of Event Which Requires Filing of This Statement)


If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D


Diamondback Energy, Inc.
Signature:/s/ Teresa L. Dick
Name/Title:Teresa L. Dick/Executive Vice President, Chief Accounting Officer and Assistant Secretary
Date:03/04/2026
Diamondback E&P LLC
Signature:/s/ Teresa L. Dick
Name/Title:By: Diamondback Energy, Inc., its sole member Teresa L. Dick/Executive Vice President, Chief Accounting Officer and Assistant Secretary
Date:03/04/2026
Endeavor Energy Resources, L.P.
Signature:/s/ Teresa L. Dick
Name/Title:Teresa L. Dick/Executive Vice President, Chief Accounting Officer and Assistant Secretary
Date:03/04/2026

FAQ

What change in ownership does Diamondback report in this VNOM Schedule 13D/A?

Diamondback Energy reports its updated beneficial ownership in Viper Energy after a March 2026 secondary offering. It now beneficially owns 142,666,789 Class A shares, representing 42.4% of the outstanding Class A stock as of March 4, 2026.

How many Viper Energy (VNOM) shares did Diamondback sell in the March 2026 secondary offering?

Diamondback sold 12,391,304 Viper Energy Class A shares at $45.69 per share in the March 2026 secondary offering. Underwriters also received a 30-day option to purchase up to an additional 2,163,958 Class A shares at the same price.

What lock-up agreement applies to Diamondback’s Viper Energy (VNOM) shares after the offering?

Diamondback agreed not to sell or dispose of additional Viper Class A shares for 30 days after the March 2, 2026 underwriting agreement date. Any exception during this period requires prior written consent from the underwriters, subject to specified carve-outs in the agreement.

What percentage of Viper Energy (VNOM) does Endeavor Energy Resources beneficially own?

Endeavor Energy Resources beneficially owns 69,626,640 Viper Class A shares on an as-exchanged basis, representing 26.4% of the Class A common stock. These holdings consist of Class B shares and New OpCo units that can be exchanged one-for-one into Class A shares.

How do New OpCo Units convert into Viper Energy (VNOM) Class A shares?

Under the New OpCo LLC Agreement, holders can require Viper to redeem Paired Units—one Class B share plus one New OpCo Unit—for an equal number of Class A shares. Alternatively, subject to written acceptance, Viper may pay cash based on a 20-day average Class A share price for some Tendered Units.

What is the total Class A share count used to calculate ownership percentages for Viper Energy (VNOM)?

Ownership percentages in the filing are based on 194,114,585 Viper Class A shares outstanding as of March 4, 2026. Diamondback’s 142,666,789 beneficially owned shares therefore correspond to a 42.4% interest in the outstanding Class A common stock.
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