Delek US Holdings Inc

PROXY STATEMENT

SUMMARY

This summary highlights information contained elsewhere in this Proxy Statement. This is only a summary and

may not contain all of the information that is important to you. For more complete information, please review

this Proxy Statement in its entirety, as well as our 2023 Annual Report. The 2023 Annual Report is not proxy

soliciting material.

2024 Meeting Information

This Proxy Statement is first being furnished to stockholders on or about March 22, 2024 in connection with the solicitation by the Board of Directors (the “Board”) of Delek US Holdings, Inc. (“we,” “us,” “our” or the “Company”) of proxies to be voted at the 2024 Annual Meeting of Stockholders (the “Annual Meeting”), and at any adjournment or postponement of such meeting.

Matters to Be Voted Upon

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

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 May 1, 2024.

VOTING ELIGIBILITY

Only stockholders as of the close of business on March 8, 2024 (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 INTERNET Go to www.proxyvote.com for 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 May 1, 2024.

BY TELEPHONE You may call 1-800-690-6903 on a touch-tone telephone and follow the instructions provided by the recorded message to vote your shares by telephone by 11:59 p.m. (Eastern Daylight Time) on May 1, 2024.

BY MAIL You may promptly mail your completed and executed proxy card in the postage-paid envelope, which must be received by the Company on or prior to May 1, 2024.

DURING THE MEETING

VIRTUAL MEETING Go to www.virtualshareholdermeeting.com/DK2024 and follow the posted instructions. You will need the 16-digit control number included on your Notice of Internet Availability, your proxy card, or the voting instructions that accompany your proxy materials.