ALAMO GROUP INC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934 (Amendment No. )

Filed by the Registrantx

Filed by a Party other than the Registranto

Check the appropriate box:

ALAMO GROUP 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):

Alamo Group Inc. | 1627 East Walnut Street | Seguin, Texas 78155

Dear Fellow Stockholders:

You are cordially invited to attend the 2026 Annual Meeting of Stockholders of Alamo Group Inc. The Annual Meeting will be held in a virtual-only format on Friday, May 1, 2026, at 9:00 a.m. Central Daylight Time.

HOW TO ATTEND THE 2026 VIRTUAL ANNUAL MEETING OF STOCKHOLDERS

To attend the Annual Meeting you will need to visitwww.virtualshareholdermeeting.com/ALG2026, and you will be required to enter the control number found on your proxy notice or proxy card you previously received. In accordance with rules and regulations adopted by the Securities and Exchange Commission (the “SEC”), instead of mailing a printed copy of our proxy materials to each stockholder of record, we are furnishing proxy materials to our stockholders on the internet. You will not receive a printed copy of the proxy materials, unless you specifically request such a copy. Instead, on or about March 19, 2026, we will mail to our stockholders a Notice Regarding the Availability of Proxy Materials containing instructions on how to access our proxy materials and annual report on the internet. We believe the furnishing of these materials electronically is more efficient, reducing costs and environmental impacts. The Notice Regarding the Availability of Proxy Materials will instruct you as to how you may access and review all of the important information contained in the proxy materials and how to request paper copies of materials if you wish. The Notice Regarding the Availability of Proxy Materials will also instruct you as to how you may submit your proxy vote on the internet. Our Proxy Statement and 2025 Annual Report to stockholders are available at the website referenced in the Notice Regarding Internet Availability of Proxy Materials and on our website at https://www.alamo-group.com/investor-relations/ at the link to 2026 Annual Meeting Information as well as under the Financial Reports link.

If you have difficulty accessing the Annual Meeting through the Annual Meeting Website, please call technical support at the telephone number on the login page for the Annual Meeting and a representative will be available to assist you. A list of stockholders entitled to vote at the Annual Meeting will be available during the entire time of the Annual Meeting at the Annual Meeting Website. You may vote during the Annual Meeting by following the instructions available on the meeting website during the meeting.

Stockholders of record as of the close of business on March 10, 2026, the record date for the Annual Meeting, will be afforded the same rights and opportunities to vote, ask questions, and participate as they would at an in-person meeting. Once you have entered the virtual Annual Meeting platform, you will be able to type and submit your questions by using the applicable field provided in the web portal before the polls close. You or your proxy holder may participate, vote, and ask questions at the virtual Annual Meeting subject to our Annual Meeting rules and procedures. We will post the Rules for Conduct for the Annual Meeting to our Investor Relations website at https://www.alamo-group.com/investor-relations/ at the link to 2026 Annual Meeting Information no later than one week prior to the Annual Meeting date, and will also make them available during the Annual Meeting through the virtual meeting platform. During the Annual Meeting, the Company will receive questions that are pertinent to the Company and the official business of the Annual Meeting subject to time constraints. Only stockholders with a valid control number will be allowed to ask questions.

Stockholders are encouraged to login to the virtual Annual Meeting several minutes prior to the start time in order to leave enough time to confirm the connection is sufficient to access the virtual meeting site and to allow sufficient time to get familiar with the virtual meeting features. Technical support will also be available during the Annual Meeting. If any stockholder experiences technical difficulty, please call technical support at the telephone number available on the Annual Meeting Website and a representative will be available to assist.

Your vote is very important. Whether or not you expect to attend the virtual Annual Meeting and regardless of the number of shares you own, please promptly vote by telephone or over the internet or by completing, signing, dating and returning your proxy card, if you have requested that a paper copy of proxy materials be mailed to you. Even if you vote in advance, you are still entitled to attend the virtual Annual Meeting and vote at the meeting. If you vote at the meeting, that vote will have the effect of revoking any prior vote.

Thank you for your support.

Richard W. Parod

Independent Chair of the Board of Directors

March 19, 2026

Alamo Group Inc. | 1627 East Walnut Street | Seguin, Texas 78155

Notice of Annual Meeting

of Stockholders

WHEN May 1, 2026 at 9:00 a.m. Central Daylight Time

WHERE Virtual-only format

Stockholders who do not expect to attend the virtual Annual Meeting are urged to vote by telephone or over the internet or by completing, signing, dating and returning the proxy card enclosed in the proxy materials, if you have requested that paper proxy materials be mailed to you.

TO THE STOCKHOLDERS OF ALAMO GROUP INC.:

NOTICE IS HEREBY GIVEN that the Annual Meeting of Stockholders of Alamo Group Inc. (the “Company”) will be held in a virtual-only format on Friday, May 1, 2026, at 9:00 a.m. Central Daylight Time, for the following purposes:

VOTING MATTERS

In accordance with the Bylaws of the Company, the Board of Directors fixed the record date for the meeting as March 10, 2026. Only stockholders of record at the close of business on that date will be entitled to vote at the meeting or any adjournment thereof.

A complete list of stockholders entitled to vote at the meeting, showing the address of each stockholder and the number of shares registered in the name of each stockholder, shall be open to examination by any stockholder, for any purpose germane to the meeting, during ordinary business hours, for a period of at least ten business days prior to the meeting, commencing April 17, 2026, at the Company's office at 1627 East Walnut Street, Seguin, Texas 78155.

By Order of the Board of Directors,

Edward T. Rizzuti

Secretary

Dated: March 19, 2026

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