ASTEC INDUSTRIES INC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549​

SCHEDULE 14A

(Rule 14a-101)

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SCHEDULE 14A INFORMATION

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ASTEC INDUSTRIES, INC.

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Dear Shareholders:

On behalf of the Board of Directors of Astec Industries, Inc. (“Astec”), thank you for your investment and continued confidence in Astec. We cordially invite you to join us for the 2026 Annual Meeting of Shareholders of Astec Industries, Inc. (“Astec” or the “Company”) to be held on Friday, April 24, 2026 at 10:00 a.m. EDT virtually over the Internet at https://web.viewproxy.com/astec/2026. We will hold the 2026 Annual Meeting as a virtual meeting because we believe that it will offer expanded access to shareholders who may otherwise not attend.

First, we want to extend a heartfelt thank you to William Gehl, our current chairman, who will be retiring as a director at the Annual Meeting after 25 years of service on our Board. We are forever grateful for the role that Bill has played in guiding Astec to where it is today. We are also excited to announce that Mark Gliebe, an independent director and current member of the Audit and Compensation committees, will succeed Bill as the Chairman of the Board, effective at the Annual Meeting.

At the 2026 Annual Meeting, with Mr. Gehl’s retirement we will be asking you to re-elect the two director nominees named in the attached proxy statement to our Board. As discussed throughout the proxy statement, our Board remains committed to strong governance practices and our Core Values of (i) Safety, (ii) Devotion, (iii) Integrity, (iv) Respect, and (v) Innovation. Under the guidance of our Board, we remain committed to investing in our employees, focusing on our customers and developing innovative solutions, and in doing so, generating long-term financial return to our shareholders. You will find detailed information in this proxy statement about the qualifications of our director nominees and why we believe they are the right people to represent your interests.

In addition to the election of directors, we are also seeking your approval of a “say-on-pay” advisory vote and ratification of the appointment of the Company’s independent registered public accounting firm for the calendar year ending December 31, 2026.

It is important that your shares be represented at the annual meeting, regardless of the number of shares you hold and whether or not you plan to attend the meeting. Accordingly, please exercise your right to vote by following the instructions for voting contained in the Notice Regarding the Availability of Proxy Materials, or the paper or electronic copy of our proxy materials you received for the meeting.

Sincerely,

ASTEC

NOTICE OF THE 2026

ANNUAL MEETING OF

SHAREHOLDERS

Dear Shareholders:

Thank you for your ongoing support and we hope you can join us at our 2026 Annual Meeting.

By Order of the Board of Directors,

Terrell Gilbert

General Counsel, Chief Compliance Officer and Corporate Secretary

March 13, 2026

Please vote your proxy as soon as possible even if you expect to attend the annual meeting live. You may vote your proxy via the Internet or by phone by following the instructions on the notice of Internet availability or proxy card, or if you received a paper copy of these proxy materials by mail, you may vote by mail by completing and returning the enclosed proxy card in the enclosed reply envelope. No postage is necessary if the proxy is mailed within the United States.