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  4. [Form 4] Diamondback Energy, Inc. Insider Trading Activity

Diamondback Energy (FANG) CAO sells 5,000 shares in open market

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Diamondback Energy, Inc. executive Teresa L. Dick, the CAO and Executive VP, reported an open-market sale of 5,000 shares of Common Stock at $200 per share. Following this Form 4 transaction, she directly holds 97,755 shares, suggesting a modest reduction relative to her remaining stake.

Positive

  • None.

Negative

  • None.
Insider Dick Teresa L.
Role CAO, Exec. VP, Assist. Sec.
Sold 5,000 shs ($1.00M)
Type Security Shares Price Value
Sale Common Stock 5,000 $200.00 $1.00M
Holdings After Transaction: Common Stock — 97,755 shares (Direct, null)
Footnotes (1)
Shares sold 5,000 shares Open-market sale of Common Stock
Sale price $200.00 per share Price for the 5,000-share sale
Shares owned after 97,755 shares Direct holdings following the transaction
Net shares sold 5,000 shares Net-sell direction in transaction summary
open-market sale financial
"reported an open-market sale of 5,000 shares of Common Stock"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
Common Stock financial
"open-market sale of 5,000 shares of Common Stock at $200 per share"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
Form 4 regulatory
"The transaction was reported on a Form 4 insider filing"
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
transaction code S regulatory
"This was classified as an open-market sale under transaction code S"
insider transaction regulatory
"What insider transaction did Diamondback Energy (FANG) report"
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
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*
Dick Teresa L.
(Last)(First)(Middle)
500 WEST TEXAS AVENUE
SUITE 100
(Street)
MIDLAND TEXAS 79701
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Diamondback Energy, Inc. [ FANG ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
CAO, Exec. VP, Assist. Sec.
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock05/14/2026S5,000D$20097,755D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
Remarks:
/s/ Matt Zmigrosky, as attorney-in-fact for Teresa L. Dick05/14/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Diamondback Energy (FANG) report for Teresa L. Dick?

Diamondback Energy reported that CAO and Executive VP Teresa L. Dick executed an open-market sale of 5,000 shares of Common Stock at $200 per share. The transaction was reported on a Form 4 insider filing for regulatory disclosure.

How many Diamondback Energy (FANG) shares did Teresa L. Dick sell and at what price?

Teresa L. Dick sold 5,000 shares of Diamondback Energy Common Stock at a price of $200 per share. This was classified as an open-market sale under transaction code S in the Form 4 filing.

How many Diamondback Energy (FANG) shares does Teresa L. Dick hold after this Form 4 sale?

After the reported sale, Teresa L. Dick directly owns 97,755 shares of Diamondback Energy Common Stock. This figure reflects her position immediately following the 5,000-share open-market sale disclosed in the Form 4.

What does transaction code S mean in the Diamondback Energy (FANG) Form 4?

Transaction code S in the Form 4 indicates a sale of securities in an open market or private transaction. In this case, it describes Teresa L. Dick’s 5,000-share sale of Diamondback Energy Common Stock at $200 per share.

Was the Diamondback Energy (FANG) Form 4 transaction by Teresa L. Dick a buy or a sell?

The Form 4 reports a sell transaction by Teresa L. Dick. She completed an open-market sale of 5,000 shares of Diamondback Energy Common Stock, categorized as a sale under transaction code S with a transaction direction of “sell.”