Diamondback officer plans $1.05M stock sale

An officer of Diamondback Energy, Inc. has filed a Rule 144 notice to sell 5,000 FANG common shares for an aggregate $1,050,000.

Rhea-AI Filing Summary

Diamondback Energy, Inc. (FANG) has an officer, Teresa L. Dick, filing a notice of proposed sale of company securities under Rule 144. The notice covers the planned sale of 5,000 shares of common stock of Diamondback Energy through Charles Schwab & Co., Inc. on the NASDAQ market. The filing lists an aggregate sale value of $1,050,000. The shares were originally acquired as equity compensation, including RSUs/PSUs granted on May 23, 2019 and paid for between May 23, 2019 and March 1, 2025.

Key Figures

Shares proposed to be sold: 5,000 shares Aggregate sale value: $1,050,000 Acquisition period for shares: May 23, 2019 to March 1, 2025 +2 more

5 metrics

Shares proposed to be sold 5,000 shares Common stock of Diamondback Energy, Inc. under Rule 144

Aggregate sale value $1,050,000 Listed for the 5,000 common shares proposed to be sold

Acquisition period for shares May 23, 2019 to March 1, 2025 Period during which the equity compensation shares were acquired and paid for

Date of notice September 15, 2026 Date the Rule 144 notice was signed and submitted

Broker Charles Schwab & Co., Inc. Broker designated for the sale of the 5,000 common shares

Key Terms

Rule 144, Equity Compensation, RSU / PSU, Common

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Equity Compensation financial

"05/23/2019 | Equity Compensation"

Equity compensation is pay given to employees, executives or contractors in the form of company ownership—such as stock, stock options or restricted shares—rather than just cash. It matters to investors because it can align workers' incentives with shareholders (like paying someone in slices of the same pie they help grow), but it also increases the number of shares outstanding and company expenses, affecting ownership percentages and earnings per share.

RSU / PSU financial

"05/23/2019 | RSU / PSU - See Remarks"

Common financial

"Common | 05/23/2019 | RSU / PSU - See Remarks"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing involving FANG disclose?

It discloses that officer Teresa L. Dick plans to sell 5,000 shares of Diamondback Energy, Inc. common stock under Rule 144, through Charles Schwab & Co., Inc., with an aggregate sale value listed as $1,050,000 on the NASDAQ market.

How many Diamondback Energy (FANG) shares are covered by this Form 144?

The notice covers a proposed sale of 5,000 shares of Diamondback Energy, Inc. common stock. These shares are to be sold through Charles Schwab & Co., Inc. on the NASDAQ market.

What is the aggregate value of FANG shares to be sold in this Form 144?

The filing lists an aggregate sale value of $1,050,000 for the 5,000 shares of Diamondback Energy, Inc. common stock proposed to be sold under Rule 144.

When were the FANG shares in this Form 144 originally acquired?

According to the remarks, the shares in this filing were acquired and paid for between May 23, 2019 and March 1, 2025, originating from equity compensation awards such as RSUs and PSUs granted on May 23, 2019.

How were the Diamondback Energy (FANG) shares obtained before this planned Rule 144 sale?

The shares were obtained through equity compensation, with the security type described as “RSU / PSU – See Remarks”. The remarks state the shares were acquired and paid for between May 23, 2019 and March 1, 2025.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/15/2026 - 04:11 PM Accepted by SEC EDGAR 09/15/2026 - 04:10 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001559931
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Diamondback Energy, Inc.
SEC File Number	001-35700
Address of Issuer	500 WEST TEXAS AVENUE SUITE 100 MIDLAND TEXAS 79701
Phone	432-221-7400
Name of Person for Whose Account the Securities are To Be Sold	Dick Teresa L.
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Charles Schwab & Co., Inc. 3000 Schwab Way Westlake TX 76262	5000	1050000.00	280024353	09/15/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/23/2019	RSU / PSU - See Remarks	Diamondback Energy, Inc.			5000	05/23/2019	Equity Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks	Shares in this filing acquired and paid for between 05/23/2019 and 03/01/2025.
Date of Notice	09/15/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Teresa L. Dick
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)