Delek US EVP sells 20,000 shares under 10b5-1 plan

Delek US Holdings, Inc. (DK) reported that Mark Wayne Hobbs, EVP of Delek Logistics, sold a total of 20,000 shares of common stock on 2026-08-17 in open-market transactions under a Rule 10b5-1 trading plan.

Rhea-AI Filing Summary

Delek US Holdings, Inc. (DK) reported that Mark Wayne Hobbs, EVP of Delek Logistics, sold a total of 20,000 shares of common stock on 2026-08-17 in open-market transactions under a Rule 10b5-1 trading plan. The sales occurred in two tranches at weighted average prices of $64.364 and $65.284 per share, with each price representing multiple trades within specified ranges. The filing notes that these transactions complete this 10b5-1 plan.

Insider Trade Summary 10b5-1

Net Seller: 20,000 shares

Net Sell 2 txns

Insider Hobbs Mark Wayne

Role EVP, Delek Logistics

Sold 20,000 shs ($1.29M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	15,124	$64.364	$973K
Sale	Common Stock F1, F3	4,876	$65.284	$318K

Holdings After Transaction: Common Stock — 104,326 shares (Direct)

Footnotes (3)

1. F1. This transaction was made pursuant to a 10b5-1 plan and is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). These transactions complete this plan.
2. F2. This price reflects the weighted average sale price of multiple transactions ranging from a low sale price of $63.750 per share to a high sale price of $64.740 per share. Upon the written request of the SEC, the Issuer or a security holder of the Issuer, the reporting person agrees to provide the number of shares sold at each sale price.
3. F3. This price reflects the weighted average sale price of multiple transactions ranging from a low sale price of $64.790 per share to a high sale price of $65.530 per share. Upon the written request of the SEC, the Issuer or a security holder of the Issuer, the reporting person agrees to provide the number of shares sold at each sale price.

Key Figures

Total Shares Sold: 20,000 shares First Tranche Shares: 15,124 shares First Tranche Weighted Average Price: $64.364 per share +2 more

5 metrics

Total Shares Sold 20,000 shares Aggregate DK common stock sold by Mark Wayne Hobbs on 2026-08-17

First Tranche Shares 15,124 shares First sale of DK common stock on 2026-08-17

First Tranche Weighted Average Price $64.364 per share Weighted average sale price; trades ranged from $63.750 to $64.740

Second Tranche Shares 4,876 shares Second sale of DK common stock on 2026-08-17

Second Tranche Weighted Average Price $65.284 per share Weighted average sale price; trades ranged from $64.790 to $65.530

Key Terms

Rule 10b5-1, affirmative defense, weighted average sale price

3 terms

Rule 10b5-1 regulatory

"This transaction was made pursuant to a 10b5-1 plan and is intended"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

affirmative defense regulatory

"intended to satisfy the affirmative defense conditions of Rule 10b5-1(c)"

weighted average sale price financial

"This price reflects the weighted average sale price of multiple transactions"

FAQ

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

What insider transaction did Delek US Holdings (DK) report for Mark Wayne Hobbs?

Delek US Holdings reported that EVP Mark Wayne Hobbs sold 20,000 shares of DK common stock on 2026-08-17. The sales were open-market transactions executed under a pre-arranged Rule 10b5-1 trading plan that is now completed.

How many Delek US Holdings (DK) shares did Mark Wayne Hobbs sell and at what prices?

Mark Wayne Hobbs sold 20,000 DK shares in two blocks: 15,124 shares at $64.364 and 4,876 shares at $65.284 weighted average prices. Each average reflects multiple trades within disclosed high-low price ranges.

Were the recent DK insider sales by Mark Wayne Hobbs under a Rule 10b5-1 plan?

Yes. The filing states the sales were made pursuant to a Rule 10b5-1 trading plan intended to satisfy Rule 10b5-1(c) affirmative defense conditions. It also specifies that these transactions complete this plan.

What price ranges applied to the 15,124-share DK sale by Mark Wayne Hobbs?

For the 15,124-share sale, the $64.364 weighted average price covers trades from $63.750 to $64.740 per share. The insider agreed to provide detailed share counts at each price upon written request from specified parties.

What price ranges applied to the 4,876-share DK sale by Mark Wayne Hobbs?

For the 4,876-share sale, the $65.284 weighted average price reflects trades from $64.790 to $65.530 per share. Exact share amounts at each price level are available upon written request to the insider.

What is the role of Mark Wayne Hobbs at Delek US Holdings (DK)?

Mark Wayne Hobbs is reported as EVP, Delek Logistics, an officer position associated with Delek US Holdings. His Form 4 filing covers personal transactions in DK common stock executed in that capacity as a reporting person.

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

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Available on EDGAR 08/18/2026 - 08:12 PM EDT Accepted by SEC EDGAR 08/18/2026 - 08:12 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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).

X

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^*

Hobbs Mark Wayne

(Last) (First) (Middle)

310 SEVEN SPRINGS WAY

SUITE 500

(Street)

BRENTWOOD TENNESSEE 37027

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Delek US Holdings, Inc. [ DK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Delek Logistics

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/17/2026		S		15,124(1)	D	$64.364(2)	109,202	D
Common Stock	08/17/2026		S		4,876(1)	D	$65.284(3)	104,326	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This transaction was made pursuant to a 10b5-1 plan and is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). These transactions complete this plan.

2. This price reflects the weighted average sale price of multiple transactions ranging from a low sale price of $63.750 per share to a high sale price of $64.740 per share. Upon the written request of the SEC, the Issuer or a security holder of the Issuer, the reporting person agrees to provide the number of shares sold at each sale price.

3. This price reflects the weighted average sale price of multiple transactions ranging from a low sale price of $64.790 per share to a high sale price of $65.530 per share. Upon the written request of the SEC, the Issuer or a security holder of the Issuer, the reporting person agrees to provide the number of shares sold at each sale price.

Remarks:

	/s/ Misty Lavender, Attorney in Fact	08/18/2026
	** Signature of Reporting Person	Date
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)