Workhorse Group Inc. — Proxy Solicitation & Information Statement 2026

May 20, 2026

DEFA14A 1 ny20071753x2_defa14a.htm DEFA14A Licensed to: Broadridge Financial Solutions, Inc. Document created using Broadridge PROfile 26.3.2.5342 Copyright 1995 - 2026 Broadridge

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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SCHEDULE 14A

(Rule 14a-101) Information Required in Proxy Statement

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

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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 Pursuant to §240.14a-12

WORKHORSE 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):

☒	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

Smartphone users Point your camera here and vote without entering a control number For complete information and to vote, visit www.ProxyVote.com Control # T00403-P54182 Your Vote Counts! WORKHORSE GROUP INC. 48443 ALPHA DRIVE SUITE 190 WIXOM, MICHIGAN 48393 WORKHORSE GROUP INC. 2026 Annual Meeting Vote by June 28, 2026 11:59 PM ET You invested in WORKHORSE GROUP 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 stockholder meeting to be held on June 29, 2026. Get informed before you vote View the Notice and Proxy Statement and Form 10-K online OR you can receive a free paper or email copy of the material(s) by requesting prior to June 15, 2026. If you would like to request a copy of the material(s) for this and/or future stockholder 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. Please check the meeting materials for any special requirements for meeting attendance. Vote Virtually at the Meeting June 29, 2026 9:00 a.m., Eastern Time Virtually at: www.virtualshareholdermeeting.com/WKHS2026

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming stockholder 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. Election of Directors For Nominees: 1a. Matthew O’Leary 1b. Scott Griffith For 1c. Pamela S. Mader For 1d. Raymond J. Chess For 1e. Alan S. Henricks For 1f. Paul Savoie For 1g. Desi Ujkashevic For 2. Proposal to approve, on an advisory basis, the compensation of our named executive officers. For 3. Proposal to ratify the appointment of Carr, Riggs & Ingram, L.L.C. as the Company’s independent auditors for the fiscal year ending December 31, 2026. For 4. Approve the Amended and Restated Workhorse Group 2023 Long-Term Incentive Plan. For 5. Proposal to act on such other matters as may properly come before the meeting or any adjournment thereof. Voting Items Board Recommends T00404-P54182

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