MARRIOTT INTERNATIONAL INC /MD/

Only stockholders of record at the close of business on the record date, March 12, 2025, are entitled to receive notice of and to attend and vote at the Annual Meeting, or any postponement or adjournment of the Annual Meeting. Each outstanding share of the Company’s Class A common stock entitles its holder to cast ten votes on each matter to be voted upon.

Whether you are a stockholder of record or a beneficial owner whose shares are held in street name, you can vote in any one of four ways:

•Via the Internet in advance of the Annual Meeting. You may vote by submitting your proxy by visiting www.proxyvote.comand entering the control number found on your proxy card (printed in the box and marked by the arrow) next to the label for postal mail recipients or within the body of the email sending the proxy statement.

•By Telephone. You may vote by submitting your proxy by calling the toll-free number found on the proxy card or in the voting instruction form.

•By Mail. You may vote by submitting your proxy by mail by filling out the enclosed proxy card (if you are a stockholder of record) or voting instruction form (if you are a beneficial owner) and sending it back in the postage-paid envelope provided.

•Online During the Annual Meeting. If you are a stockholder of record and you plan to attend the Annual Meeting, you are encouraged to vote beforehand by Internet, telephone or mail. You also may vote at www.virtualshareholdermeeting.com/MAR2025 during the Annual Meeting. Have your unique control number available when you access the Annual Meeting website.

Telephone and Internet voting is available through 11:59 p.m. Eastern Time on Thursday, May 8, 2025. The telephone and Internet voting procedures are designed to authenticate votes cast by use of a personal identification number. The procedures, which are designed to comply with Delaware law, allow stockholders to appoint a proxy to vote their shares and to confirm that their instructions have been properly recorded.

If you hold your shares in street name through a broker, bank, or other nominee, you may be able to vote by telephone or electronically through the Internet in accordance with the voting instructions provided by that institution. Brokers holding shares must vote according to specific instructions they receive from the beneficial owners of those shares. If brokers do not receive specific instructions, brokers may in some cases vote the shares in their discretion but are not permitted to vote on certain proposals and may elect not to vote on any of the proposals unless you provide voting instructions. If you do not provide voting instructions and the broker elects to vote your shares on some but not all matters, it will result in a “broker non-vote” for the matters on which the broker does not vote. Abstentions occur when you provide voting instructions but instruct the broker to abstain from voting on a particular matter instead of voting for or against the matter.

If you participate in the Marriott Retirement Savings Plan or the Marriott International, Inc. Puerto Rico Retirement Plan (the “Retirement Plans”), you may give voting instructions as to the number of share equivalents allocated to your account as of the record date. You may provide voting instructions to the trustee under the Retirement Plans by completing and returning the proxy card accompanying this proxy statement. The trustee will vote the number of shares equal to the share equivalents credited to your account in accordance with your duly executed instructions if they are received by 11:59 p.m. Eastern Time on Tuesday, May 6, 2025. If you do not send instructions by this deadline or if you do not vote by proxy, or if you return your proxy card with an unclear voting designation or no voting designation at all, the trustee will vote the number of shares equal to the share equivalents credited to your account in the same proportion that it votes shares for which it did receive timely instructions. Under the Retirement Plans, participants are “named fiduciaries” to the extent of their authority to direct the voting of shares held in their accounts and their proportionate share of undirected shares set forth in the preceding sentence.

The shares on your proxy card(s) represent ALL of your shares of Class A common stock that the Company’s stock transfer records indicate that you hold, including (i) any shares you may hold through the Computershare Investor Services Program for Marriott International, Inc. Stockholders administered by Computershare Investor Services; and (ii) if you are a participant in one of the Retirement Plans, any shares that may be held for your account by The Northern Trust Company as the plan’s custodian. Shares that you hold in street name through a broker, bank, or other nominee are not included on the proxy card(s) furnished by the Company, but the institution will provide you with a voting instruction form.

Your shares will be voted as you indicate on the proxy card. Except as indicated above with respect to shares held in the Retirement Plans, if you return your signed proxy card but do not mark the boxes indicating how you wish to vote, your shares will be voted FOR the election of each of the 13 director nominees; FOR the ratification of the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for fiscal year 2025; and FOR the advisory vote to approve executive compensation.

The presence at the Annual Meeting, by participating in the virtual Annual Meeting or by proxy, of the holders of a majority of the shares of Class A common stock of the Company issued and outstanding on the record date and entitled to vote will constitute a quorum. A quorum is required for business to be conducted at the Annual Meeting. As of the March 12, 2025 record date, 275,372,787 shares of our Class A common stock were outstanding and entitled to vote. If you submit a properly executed proxy card, even if you abstain from voting, you will be considered part of the quorum. Similarly, “broker non-votes” (described above) will be counted in determining whether there is a quorum.

Yes. Even after you have submitted your proxy, you may change your vote at any time before the proxy is exercised at the meeting. Regardless of the way in which you submitted your original proxy, you may change it by:

If your shares are held in street name through a broker, bank, or other nominee, you will need to contact that institution if you wish to change your voting instructions in advance of the Annual Meeting. Alternatively, you may attend the Annual Meeting and vote online, as indicated above under “How do I vote?”

Representatives of Broadridge Financial Solutions, Inc., our independent vote tabulation agency, will count the votes and act as the inspector of election.

If your shares are registered under different names or are held in more than one account, you may receive more than one proxy card. In order to vote all your shares, please sign and return all proxy cards, or if you choose, vote by submitting your proxy by telephone or through the Internet using the personal identification number printed on each proxy card. We encourage you to have all accounts registered in the same name and address (whenever possible). You can accomplish this by contacting our transfer agent, Computershare Investor Services, at 1-800-311-4816.

Although we currently do not know of any business to be considered at the Annual Meeting other than the items described in this proxy statement, if any other business is properly presented at the Annual Meeting, your proxy gives authority to David S. Marriott and/or Anthony G. Capuano (with full power of substitution) to vote on such matters at their discretion.