METTLER TOLEDO INTERNATIONAL INC/

Proxy Solicitation & Information Statement • Mar 17, 2025

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. )

þ Filed by the Registrant o Filed by a Party other than the Registrant

Check the appropriate box:
o	Preliminary Proxy Statement
o	CONFIDENTIAL, FOR USE OF THE COMMISSION ONLY (AS PERMITTED BY RULE 14a-6(e)(2))
þ	Definitive Proxy Statement
o	Definitive Additional Materials
o	Soliciting Material Under Rule 14a-12

METTLER-TOLEDO 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 the appropriate box):
þ	No fee required.
o	Fee paid previously with preliminary materials.
o	Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

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METTLER-TOLEDO INTERNATIONAL INC. Using a black ink pen, mark your votes with an X as shown in this example. Please do not write outside the designated areas.Your vote matters – here’s how to vote! You may vote online or by phone instead of mailing this card.Votes submitted electronically must be received by 11:59pm, Eastern Time, on April 30, 2025. Online Go to www.investorvote.com/MTD or scan the QR code — login details are located in the shaded bar below.Phone Call toll free 1-800-652-VOTE (8683) within the USA, US territories and Canada Save paper, time and money! Sign up for electronic delivery at www.investorvote.com/MTD2025 Annual Meeting Proxy Card• IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE.•1. ELECTION OF DIRECTORSFor Against Abstain For Against Abstain For Against Abstain 1.1 -Roland Diggelmann 1.4 - Michael A. Kelly 1.7 - Wolfgang Wienand 1.2 -Domitille Doat-Le Bigot 1.5 -Thomas P. Salice1.8 -Ingrid Zhang 1.3 -Elisha W. Finney 1.6 - Brian Shepherd For Against Abstain For Against Abstain 2. RATIFICATION OF INDEPENDENT REGISTERED PUBLIC 3. ADVISORY VOTE TO APPROVE EXECUTIVE COMPENSATION ACCOUNTING FIRMPlease sign exactly as name(s) appears hereon. Joint owners should each sign. When signing as attorney, executor, administrator, corporate officer, trustee, guardian, or custodian, please give full title. Date (mm/dd/yyyy) — Please print date below. Signature 1 — Please keep signature within the box. Signature 2 — Please keep signature within the box.1UPX 043HRA

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You can view the 2024 Annual Report to Stockholders and the 2025 Proxy Statement on the Internet at: www.mt.com/proxyonlineSmall steps make an impact. Help the environment by consenting to receive electronic delivery, sign up at www.investorvote.com/MTD• IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE.•Proxy - Mettler-Toledo International Inc.Notice of 2025 Annual Meeting of Shareholders Proxy Solicited by Board of Directors for Annual Meeting — May 1, 2025 The undersigned hereby appoints Roland Diggelmann and Shawn P. Vadala, and each of them, Proxies for the undersigned, each with the power of substitution, to represent and vote the shares of the undersigned, with all the powers which the undersigned would possess if personally present, at the Annual Meeting of Shareholders of Mettler-Toledo International Inc. to be held on May 1, 2025 or at any postponement or adjournment thereof. Shares represented by this proxy will be voted by the Proxies according to the directions marked on the reverse side. If no such directions are indicated, the Proxies will have authority to vote FOR the election of the Board of Directors and FOR items 2 and 3. In their discretion, the Proxies are authorized to vote upon such other business as may properly come before the meeting. (Items to be voted appear on reverse side)Change of Address — Please print new address below. Comments — Please print your comments below.

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