---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-183040"
form_type: "8-K"
ticker: null
cik: "0001602065"
company_name: "VNOM Sub, Inc."
filed_at: "2025-08-19T23:59:59+00:00"
generated_at: "2026-05-17T11:29:10.318744+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Viper Energy completes merger with Sitio Royalties; shares convert at 0.4855:1

## Summary
- Merger closed Aug 19, 2025; Sitio shareholders get 0.4855 New Viper Class A shares per Sitio share.
- Former Viper Class A and B shares convert 1:1 into New Viper Class A and B shares, respectively.
- New Viper (f/k/a New Cobra Pubco, Inc.) becomes successor issuer; ticker VNOM unchanged.
- Former Viper renamed VNOM Sub, Inc.; directors West, Argo, Armour, Hu, Perry, Rubin, Stice depart.
- Austen Gilfillian and Matt Zmigrosky appointed to Former Viper board; Van't Hof remains.

## SEC filing metadata
- accession: 0001193125-25-183040
- form_type: 8-K
- cik: 0001602065
- company_name: VNOM Sub, Inc.
- filed_at: 2025-08-19T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.02, 2.01, 3.01, 3.03, 1.01, 5.03, 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1602065/000119312525183040/0001193125-25-183040-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1602065/000119312525183040/d65540d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-183040
- JSON: https://secwatch.observer/filing/0001193125-25-183040.json
- Plain text: https://secwatch.observer/filing/0001193125-25-183040.txt

## Key facts
- Governance Changes
  VNOM Sub, Inc.: Former Viper amended and restated its bylaws in their entirety in connection with the Mergers (effective 2025-08-19).
  - Change: bylaw amendment
  - Effective: 2025-08-19
  source text: on August 19, 2025, Former Viper amended and restated its certificate of incorporation and bylaws
  evidence_url: https://www.sec.gov/Archives/edgar/data/1602065/000119312525183040/0001193125-25-183040-index.htm
- Governance Changes
  VNOM Sub, Inc.: Former Viper amended and restated its certificate of incorporation in its entirety in connection with the Mergers (effective 2025-08-19).
  - Change: charter amendment
  - Effective: 2025-08-19
  source text: on August 19, 2025, Former Viper amended and restated its certificate of incorporation
  evidence_url: https://www.sec.gov/Archives/edgar/data/1602065/000119312525183040/0001193125-25-183040-index.htm
- M&A Transactions
  VNOM Sub, Inc. underwent a change of control involving New Cobra Pubco, Inc. for all-equity transaction (closed 2025-08-19).
  - Action: change of control
  - Counterparty: New Cobra Pubco, Inc.
  - Consideration: all-equity transaction
  - Closing: 2025-08-19
  source text: the Mergers were consummated in accordance with the Merger Agreement (the “Closing”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1602065/000119312525183040/0001193125-25-183040-index.htm
- M&A Transactions
  VNOM Sub, Inc. completed an acquisition involving Sitio Royalties Corp. for all-equity transaction (closed 2025-08-19).
  - Action: acquisition
  - Counterparty: Sitio Royalties Corp.
  - Consideration: all-equity transaction
  - Closing: 2025-08-19
  source text: the acquisition of Sitio by Former Viper in an all-equity transaction
  evidence_url: https://www.sec.gov/Archives/edgar/data/1602065/000119312525183040/0001193125-25-183040-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.