ALTA EQUIPMENT GROUP INC

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☐

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Alta Equipment 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 all boxes that apply):

April 15, 2025

Dear Fellow Stockholders:

2024 tested our industry and our business in meaningful ways. Persistent inflation, elevated interest rates, and an oversupplied equipment market created pressure across many of our end markets. As always, our focus remained on controlling what we could—operating with discipline, staying close to our customers, and executing with purpose.

Despite these headwinds, we delivered approximately $1.9 billion in total revenues, consistent with prior-year levels. Our performance reflects the resilience of our diversified model and the stability provided by our product support business, which remains a critical and differentiating part of our value proposition. Throughout the year, we maintained a strong emphasis on managing working capital, optimizing our rental fleet, and maintaining cost discipline. We also took a proactive step to refinance our senior debt, extending maturities to 2029 and enhancing our financial flexibility.

Although some areas of the business underperformed our original expectations, our long-term strategy remains sound. In our Construction Equipment segment, we’re beginning to see signs that the market is finding balance. Demand in core regions like Florida, the Midwest, and the Northeast is supported by state DOT budgets and the multi-year impact of federal infrastructure funding. We expect a healthier sales environment as the equipment supply and demand dynamic normalizes.

In Material Handling, the shift toward automation, electrification, and warehouse efficiency continues to gain momentum. We’ve made deliberate investments in these areas—positioning Alta to serve customers seeking more integrated, future-ready solutions. Our presence in the northern U.S. and Canada gives us exposure to onshoring activity and other secular trends reshaping supply chains and distribution networks.

We continue to invest in the business for the long term. Our ERP transformation remains on track, with deployment targeted for 2026, and we’ve begun to evaluate elements of our portfolio to ensure alignment with strategic priorities. At every step, we are working to make Alta a more focused, efficient, and customer-driven organization.

Throughout the year, we stayed anchored in our purpose: delivering trust that makes a difference. This commitment guides how we show up for customers, how we engage with our OEM partners, and how we support the development and wellbeing of our people. We’re proud of the progress we’ve made in building a culture defined by accountability, safety, and shared success.

To our team members—thank you for your hard work and resilience. To our OEM partners and customers—thank you for your continued partnership. And to our stockholders—thank you for your trust and support. As we look ahead, we remain focused on disciplined execution, thoughtful capital allocation, and building sustainable value for all stakeholders.

Sincerely,

Ryan Greenawalt

Chairman of the Board and Chief Executive Officer

2025 PROXY STATEMENT

NOTICE OF 2025 ANNUAL MEETING OF STOCKHOLDERS

On behalf of the Board of Directors, I cordially invite you to attend the 2025 Annual Meeting of Stockholders of Alta Equipment Group Inc. (the “Company”) to be held on May 30, 2025 at 9:30 a.m., Eastern Daylight Time (the “Annual Meeting”). The Annual Meeting will be a completely virtual meeting, which will be conducted via a live audio webcast. You will be able to attend the Annual Meeting online, vote your shares electronically and submit your questions during the Annual Meeting via a live audio webcast by visiting and registering atwww.proxydocs.com/ALTG.

The purpose of the Annual Meeting is to:

elect the three director nominees listed in the accompanying proxy statement;

ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for 2025;

approve, in a non-binding advisory vote, the compensation paid to our named executive officers;

approve the First Amendment to Alta Equipment Group, Inc. 2022 Employee Stock Purchase Plan; and

transact any other business that may properly come before the Annual Meeting and any adjournments or postponements thereof.

Only stockholders of record at the close of business on April 2, 2025, may vote at the Annual Meeting. Each stockholder of record is entitled to one vote for each share of common stock held at that time.

Your vote is important to us. Whether or not you plan to attend the Annual Meeting, we strongly urge you to cast your vote promptly. You may vote over the Internet, as well as by telephone or by mail. Please review the instructions on the proxy or voting instruction card regarding each of these voting options.

Important Notice Regarding the Availability of Proxy Materials for the Stockholder Meeting To Be Held on May 30, 2025:

This Proxy Statement and Annual Report to Stockholders, which includes our Annual Report on Form 10-K for the year ended December 31, 2024, are available on or about April 15, 2025 at www.proxydocs.com/ALTG.

By order of the Board of Directors,

/s/ Ryan Greenawalt

Ryan Greenawalt

Chairman of the Board and Chief Executive Officer

April 15, 2025

2025 PROXY STATEMENT

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