Delek US director plans sale of 27,688 shares

Delek US Holdings, Inc. (symbol DK) received a Rule 144 notice from director Gary M. Sullivan Jr., for whose account up to 27,688 shares of common stock held at Fidelity Brokerage Services LLC may be sold.

Rhea-AI Filing Summary

Delek US Holdings, Inc. (symbol DK) received a Rule 144 notice from director Gary M. Sullivan Jr., for whose account up to 27,688 shares of common stock held at Fidelity Brokerage Services LLC may be sold. The filing lists these shares as having an aggregate market value of $1,910,832.64, with 61,232,174 shares of common stock outstanding and a proposed sale date of August 24, 2026 on the NYSE. The shares derive from multiple restricted stock vesting awards granted as compensation between March 2018 and June 2025.

Key Figures

Shares to be sold under Rule 144: 27,688 shares Aggregate market value of securities to be sold: $1,910,832.64 Shares outstanding: 61,232,174 shares +1 more

4 metrics

Shares to be sold under Rule 144 27,688 shares Common stock of Delek US Holdings, Inc. proposed for sale

Aggregate market value of securities to be sold $1,910,832.64 Value of the 27,688 Delek US Holdings, Inc. shares covered by the notice

Shares outstanding 61,232,174 shares Delek US Holdings, Inc. common stock outstanding as listed in the notice

Proposed sale date 08/24/2026 Date on which the covered Delek US Holdings, Inc. shares may be sold

Key Terms

Rule 144, Restricted Stock Vesting, attorney-in-fact

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.

Restricted Stock Vesting financial

"Common | 03/10/2018 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

attorney-in-fact regulatory

"as attorney-in-fact for Gary Sullivan Jr."

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

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

What does the Form 144 filing disclose for Delek US Holdings, Inc. (DK)?

It discloses that director Gary M. Sullivan Jr. filed a Rule 144 notice covering up to 27,688 shares of Delek US Holdings, Inc. common stock, held at Fidelity Brokerage Services LLC, with a proposed sale date of August 24, 2026 on the NYSE.

How many Delek US Holdings (DK) shares are covered and what is their value?

The notice covers up to 27,688 shares of Delek US Holdings, Inc. common stock, with an aggregate market value stated as $1,910,832.64 in the filing.

What is the percentage context of the planned sale relative to Delek US (DK) shares outstanding?

The filing lists 61,232,174 shares of Delek US Holdings, Inc. common stock outstanding. The notice relates to 27,688 shares; this outstanding figure is a baseline and not the amount being sold.

How were the Delek US Holdings (DK) shares in the Form 144 acquired?

The shares were acquired through multiple Restricted Stock Vesting events from Delek US Holdings, Inc. as compensation, with vesting dates spanning from March 10, 2018 through June 10, 2025.

Who is selling the Delek US Holdings (DK) shares and who signed the Form 144?

The securities are for the account of director Gary M. Sullivan Jr.. The notice is signed by /s/ Daniel Tucci, a duly authorized representative of Fidelity Brokerage Services LLC, acting as attorney-in-fact for Gary Sullivan Jr.

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

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Available on EDGAR 08/24/2026 - 12:52 PM EDT Accepted by SEC EDGAR 08/24/2026 - 12:50 PM EDT 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	0001561068
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	Delek US Holdings, Inc.
SEC File Number	001-38142
Address of Issuer	310 SEVEN SPRINGS WAY SUITE 500 BRENTWOOD TENNESSEE 37027
Phone	615-771-6701
Name of Person for Whose Account the Securities are To Be Sold	Sullivan Gary M Jr.
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	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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	27688	1910832.64	61232174	08/24/2026	NYSE

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	03/10/2018	Restricted Stock Vesting	Issuer			1187	03/10/2018	Compensation
Common	06/10/2018	Restricted Stock Vesting	Issuer			1187	06/10/2018	Compensation
Common	12/10/2018	Restricted Stock Vesting	Issuer			1102	12/10/2018	Compensation
Common	03/10/2019	Restricted Stock Vesting	Issuer			551	03/10/2019	Compensation
Common	06/10/2019	Restricted Stock Vesting	Issuer			551	06/10/2019	Compensation
Common	09/10/2019	Restricted Stock Vesting	Issuer			872	09/10/2019	Compensation
Common	12/10/2019	Restricted Stock Vesting	Issuer			873	12/10/2019	Compensation
Common	03/10/2020	Restricted Stock Vesting	Issuer			872	03/10/2020	Compensation
Common	06/10/2020	Restricted Stock Vesting	Issuer			873	06/10/2020	Compensation
Common	03/10/2021	Restricted Stock Vesting	Issuer			1561	03/10/2021	Compensation
Common	06/10/2021	Restricted Stock Vesting	Issuer			1562	06/10/2021	Compensation
Common	09/10/2021	Restricted Stock Vesting	Issuer			1315	09/10/2021	Compensation
Common	12/10/2021	Restricted Stock Vesting	Issuer			1316	12/10/2021	Compensation
Common	03/10/2022	Restricted Stock Vesting	Issuer			1316	03/10/2022	Compensation
Common	06/10/2022	Restricted Stock Vesting	Issuer			1316	06/10/2022	Compensation
Common	09/10/2022	Restricted Stock Vesting	Issuer			935	09/10/2022	Compensation
Common	12/10/2022	Restricted Stock Vesting	Issuer			936	12/10/2022	Compensation
Common	03/10/2023	Restricted Stock Vesting	Issuer			936	03/10/2023	Compensation
Common	06/10/2023	Restricted Stock Vesting	Issuer			936	06/10/2023	Compensation
Common	09/09/2023	Restricted Stock Vesting	Issuer			1508	09/09/2023	Compensation
Common	12/09/2023	Restricted Stock Vesting	Issuer			1509	12/09/2023	Compensation
Common	03/09/2024	Restricted Stock Vesting	Issuer			1508	03/09/2024	Compensation
Common	06/09/2024	Restricted Stock Vesting	Issuer			1509	06/09/2024	Compensation
Common	06/10/2025	Restricted Stock Vesting	Issuer			1457	06/10/2025	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
Date of Notice	08/24/2026
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	/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Gary Sullivan Jr.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)