UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.             )

Filed by the Registrant     x Filed by a party other than the Registrant     ¨

Check the appropriate box:

¨ Preliminary Proxy Statement 

¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨ Definitive Proxy Statement

x Definitive Additional Materials

¨ Soliciting Material Pursuant to §240.14a-12

Philip Morris International, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

x No fee required.

¨ Fee paid previously with preliminary materials.

¨ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

Your Vote Counts! *Please check the meeting materials for any special requirements for meeting attendance. Smartphone users Point your camera here and vote without entering a control number For complete information and to vote, visit www.ProxyVote.com Control # V32474-P05743 PHILIP MORRIS INTERNATIONAL INC. 2024 Virtual Annual Meeting Vote by 11:59 P.M. EDT, on May 7, 2024 You invested in PHILIP MORRIS INTERNATIONAL INC. and it’s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on May 8, 2024. Get informed before you vote View the Notice, Proxy Statement and 2023 Annual Report online OR you can receive a free paper or email copy of the material(s) by requesting any such material(s) prior to April 24, 2024. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. PHILIP MORRIS INTERNATIONAL INC. ATTN: DARLENE QUASHIE HENRY VICE PRESIDENT, ASSOCIATE GENERAL COUNSEL AND CORPORATE SECRETARY 677 WASHINGTON BLVD., SUITE 1100 STAMFORD, CT 06901 Virtually at: www.virtualshareholdermeeting.com/PM2024 Vote by Internet or Telephone by 11:59 p.m. EDT, on May 7, 2024, or Virtually at the Meeting May 8, 2024 9:00 A.M. EDT

Vote at www.ProxyVote.com Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”. Voting Items Board Recommends V32475-P05743 THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. 1. Election of Directors 1a. Brant Bonin Bough For 1b. André Calantzopoulos For 1c. Michel Combes For 1d. Juan José Daboub For 1e. Werner Geissler For 1f. Victoria Harker For 1g. Lisa A. Hook For 1h. Kalpana Morparia For 1i. Jacek Olczak For 1j. Robert B. Polet For 1k. Dessislava Temperley For 1l. Shlomo Yanai For 2. Advisory Vote Approving Executive Compensation For 3. Ratification of the Selection of Independent Auditors For