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 ☒

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
☒	Definitive Additional Materials

☐	Soliciting Material under §240.14a-12

Allient 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):

☒	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 # V91135-P45800 ALLIENT INC. 495 COMMERCE DRIVE AMHERST, NY 14228 ATTN: ALEX COLLICHIO ALLIENT INC. 2026 Annual Meeting Vote by May 5, 2026 11:59 PM ET You invested in ALLIENT 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 materials for the shareholder meeting to be held on May 6, 2026. Get informed before you vote View the Annual Report and Notice and Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to April 22, 2026. 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 [email protected]. 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. Vote Virtually at the Meeting* May 6, 2026 9:00 AM EASTERN TIME Virtually at: www.virtualshareholdermeeting.com/ALNT2026

Vote at www.ProxyVote.com 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. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”. 1. TO ELECT SIX DIRECTORS TO HOLD OFFICE UNTIL THE NEXT ANNUAL MEETING OF SHAREHOLDERS. For Nominees: 1a. R.B. Engel 1b. R.D. Federico For 1c. S.C. Finch For 1d. N.R. Tzetzo For 1e. R.S. Warzala For 1f. M.R. Winter For 2. ADVISORY VOTE TO APPROVE THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS. For 3. RATIFICATION OF THE APPOINTMENT OF THE COMPANY’S INDEPENDENT PUBLIC ACCOUNTING FIRM FOR 2026. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof. Voting Items Board Recommends V91136-P45800