Chad McAllaster - 01 Mar 2026 Form 4 Insider Report for Diamondback Energy, Inc. (FANG)

Role
EVP-Operations
Signature
/s/ Matt Zmigrosky, as attorney-in-fact for Chad McAllaster
Issuer symbol
FANG
Transactions as of
01 Mar 2026
Net transactions value
-$168,684
Form type
4
Filing time
03 Mar 2026, 17:51:30 UTC
Previous filing
04 Mar 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
McAllaster Chad EVP-Operations 500 WEST TEXAS AVENUE, SUITE 100, MIDLAND /s/ Matt Zmigrosky, as attorney-in-fact for Chad McAllaster 03 Mar 2026 0002035975

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction FANG Common Stock Award $0 +3,966 +137% $0.000000 6,858 01 Mar 2026 Direct F1, F2
transaction FANG Common Stock Tax liability $77,988 -448 -6.5% $174.08 6,410 01 Mar 2026 Direct F2, F3
transaction FANG Common Stock Tax liability $90,696 -521 -8.1% $174.08 5,889 01 Mar 2026 Direct F2, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These securities are restricted stock units, each representing a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer. These restricted stock units were granted under the issuer's equity incentive plan and will vest in three equal installments beginning on March 1, 2026.
F2 These shares of common stock are jointly owned by the reporting person and his spouse.
F3 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 March 1, 2026 of the second tranche of the time-based restricted stock units granted to the reporting person on March 1, 2025. The number of shares of common stock withheld was determined based on the closing price per share of the issuer's common stock on February 27, 2026.
F4 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 March 1, 2026 of the first tranche of the time-based restricted stock units granted to the reporting person on March 1, 2026. The number of shares of common stock withheld was determined based on the closing price per share of the issuer's common stock on February 27, 2026.