Diamondback Energy insider plans $2,146,608 stock sale

Rhea-AI Filing Summary

Diamondback Energy, Inc. (FANG) insider Matthew Kaes Van't Hof has filed a Rule 144 notice to sell up to 10,000 shares of common stock through Charles Schwab & Co., Inc., with an aggregate market value of $2,146,608.00, with a proposed sale date of 08/20/2026 on NASDAQ. The shares were acquired on 03/01/2024 via a performance stock lapse as equity compensation. The filing also reports prior sales of 15,000 shares on 06/03/2026 for $3,125,000.00 and 5,000 shares on 08/11/2026 for $1,012,316.00.

Key Figures

Proposed shares to be sold: 10,000 shares of common stock Aggregate market value of proposed sale: $2,146,608.00 Proposed date of sale: 08/20/2026 +3 more

6 metrics

Proposed shares to be sold 10,000 shares of common stock Planned Rule 144 sale through Charles Schwab & Co., Inc.

Aggregate market value of proposed sale $2,146,608.00 Value for 10,000 shares of Diamondback Energy, Inc. common stock

Proposed date of sale 08/20/2026 Date listed for Rule 144 sale of 10,000 shares on NASDAQ

Acquisition date of shares 03/01/2024 Shares acquired via Performance Stock Lapse as equity compensation

Shares sold on 06/03/2026 15,000 shares for $3,125,000.00 Reported prior sale of Diamondback Energy, Inc. common stock

Shares sold on 08/11/2026 5,000 shares for $1,012,316.00 Reported prior sale of Diamondback Energy, Inc. common stock

Key Terms

Rule 144, Performance Stock Lapse, Equity Compensation

3 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.

Performance Stock Lapse financial

"Common | 03/01/2024 | Performance Stock Lapse | Diamondback Energy, Inc."

Equity Compensation financial

"10000 | 03/01/2024 | 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.

FAQ

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

Who is selling shares of Diamondback Energy, Inc. (FANG) under this Form 144?

The notice relates to sales for the account of Matthew Kaes Van't Hof, associated with Diamondback Energy, Inc. The filing provides his name and address and is made under Rule 144 for the planned disposition of the company’s common stock.

How many FANG shares are proposed to be sold and when?

The filing covers a proposed sale of up to 10,000 shares of Diamondback Energy, Inc. common stock, with a stated date of sale of 08/20/2026. The shares are expected to be sold on NASDAQ through Charles Schwab & Co., Inc.

What is the aggregate market value of the FANG shares covered by this Form 144?

The 10,000 shares of Diamondback Energy, Inc. common stock listed for sale have an aggregate market value of $2,146,608.00 as stated in the securities information section, based on the filer’s calculation for this Rule 144 notice.

How and when were the FANG shares to be sold acquired by the insider?

The 10,000 shares proposed for sale were acquired on 03/01/2024 from Diamondback Energy, Inc. via a Performance Stock Lapse, identified as Equity Compensation in the acquisition information section of the notice.

What FANG share sales has Matthew Kaes Van't Hof made in the past three months?

The filing reports that Matthew Kaes Van't Hof sold 15,000 shares of Diamondback Energy, Inc. on 06/03/2026 for $3,125,000.00 and 5,000 shares on 08/11/2026 for $1,012,316.00, both identified as sales of the issuer’s common stock.

Which broker is handling the proposed FANG share sale under Rule 144?

The proposed sale of 10,000 shares of Diamondback Energy, Inc. common stock is listed as being through Charles Schwab & Co., Inc., located at 3000 Schwab Way, Westlake, Texas, in the securities information section of the notice.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 08/20/2026 - 04:03 PM Accepted by SEC EDGAR 08/20/2026 - 04:01 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	0001704666
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	Van't Hof Matthew Kaes
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
Relationship to Issuer	Director

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	10000	2146608.00	280024353	08/20/2026	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	03/01/2024	Performance Stock Lapse	Diamondback Energy, Inc.			10000	03/01/2024	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Matthew Kaes Van't Hof 500 WEST TEXAS AVENUE SUITE 100 MIDLAND TX 79701	Diamondback Energy, Inc.	06/03/2026	15000	3125000.00
Matthew Kaes Van't Hof 500 WEST TEXAS AVENUE SUITE 100 MIDLAND TX 79701	Diamondback Energy, Inc.	08/11/2026	5000	1012316.00

144: Remarks and Signature

Remarks
Date of Notice	08/20/2026
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	Matthew Kaes Van't Hof
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)