Albert Barkmann - 10 Sep 2026 Form 4 Insider Report for Diamondback Energy, Inc. (FANG)

Reporting relationship: Exec. VP and Chief Engineer
Issuer ticker: FANG
Reported as of: 10 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 14 Sep 2026, 16:03:39 UTC
Prior SEC filing: 19 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Matt Zmigrosky, as attorney-in-fact for Albert Barkmann

Key filing fact

Albert Barkmann filed Form 4 for Diamondback Energy, Inc. (FANG) on 14 Sep 2026.

Key facts

This page summarizes Albert Barkmann's Form 4 filing for Diamondback Energy, Inc. (FANG).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 14 Sep 2026, 16:03.

Change

Previous filing in this sequence was filed on 19 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002012976 Primary reporting owner

Barkmann Albert

Relationship: Exec. VP and Chief Engineer
Address: 500 WEST TEXAS AVENUE, SUITE 100, MIDLAND
Signature: /s/ Matt Zmigrosky, as attorney-in-fact for Albert Barkmann
Signature date: 14 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

FANG transaction

Common Stock

Tax liability

Transaction value
Shares: -682
Change %: -2.8%
Price: $202.63^*
Shares after: 23,889
Date: 10 Sep 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The issuer withheld shares of common stock that would have otherwise been issuable to the reporting person to satisfy the issuer's tax withholding obligations in connection with the vesting and settlement on September 10, 2026 of the second tranche of the time-based restricted stock units granted to the reporting person on September 10, 2024. The number of shares of common stock withheld was determined based on the closing price per share of the issuer's common stock on September 9, 2026.