Company: DK
Filing Date: 2025-03-20
Form Type: DEF 14A
Source: 0001140361-25-009658
Chunk: 3

Company: Delek US Holdings, Inc.
Filing Date: 2025-03-20
Form: DEF 14A
Chunk 3
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the “Annual Meeting”), and at any adjournment or postponement of such meeting.

| Record Date      
 Meeting Date     |     | March 10, 2025                           
 April 29, 2025                           |
|:-----------------|:----|:-----------------------------------------|
| Meeting Time     |     | 11:30 a.m., central time                 |
| Meeting Location |     | Online at                                
 www.virtualshareholdermeeting.com/DK2025 |

Matters to Be Voted Upon

|                                                                        |     | Board                
 Recommendation       |     |      Page 
 Reference |
| Proposal 1. Election of Ten Directors                                  |     | FOReach Company      
 nominee named herein |     |        27 |
| Proposal 2. Advisory Resolution on Executive Compensation              |     | FOR                  |     |        77 |
| Proposal 3. Approve the Amendment to our 2016 Long-Term Incentive Plan |     | FOR                  |     |        84 |
| Proposal 4. Ratify the Appointment of Auditors                         |     | FOR                  |     |        93 |

Stockholders will also transact any other business that may properly come before the Annual Meeting or any adjournment or postponement thereof.

TABLE OF CONTENTS

How to Vote Your vote is important. Even if you plan to attend the Annual Meeting, to ensure that your shares are represented and voted at the Annual Meeting, we encourage you to submit your proxy card or voting instructions form as soon as possible or to vote by Internet or phone prior to the Annual Meeting by following the instructions on your proxy card (though holders in “street name” should follow the instructions given to them by their bank, broker or other nominee to vote their shares). Internet and phone voting will close at 11:59 p.m. eastern time on April 28, 2025. VOTING ELIGIBILITY Only stockholders as of the close of business on March 10, 2025 (the “Record Date”) are eligible to vote at the Annual Meeting or by proxy and each such stockholder shall have one vote for each share of Common Stock held on the Record Date.

| VOTING METHODS     
 BEFORE THE MEETING |     | BY INTERNETGo towww.proxyvote.comfor voting instructions or scan the QR code on your Important Notice Regarding the Availability of Proxy Materials or proxy card with your smartphone, then cast your vote electronically by 11:59 p.m. (Eastern Daylight Time) on April 28