Ingram Micro Holding Corp

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a)

of the Securities Exchange Act of 1934

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INGRAM MICRO HOLDING CORPORATION

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Letter from the Chairperson

March 26, 2026

Dear Stockholder:

On behalf of the Board of Directors, I am pleased to invite you to the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of Ingram Micro Holding Corporation. The meeting will be held virtually on Wednesday, May 13, 2026, at 8:30 am (Pacific), at www.virtualshareholdermeeting.com/INGM2026.

On or about March 26, 2026, we sent a Notice of Internet Availability of Proxy Materials (“Notice”) to stockholders. The Notice for the Annual Meeting contains details on how to access and review the materials, retrieve your proxy card, and submit your vote online. To request a printed copy of the proxy materials, please follow the instructions outlined in the Notice.

We encourage you to vote regardless of whether you plan to attend the Annual Meeting. You may cast your vote at the meeting, online using the instructions provided in the Notice or proxy card, by telephone, or by mailing your completed proxy card in the postage-prepaid return envelope if you received paper materials.

We are grateful for your ongoing commitment to Ingram Micro.

Sincerely,

Alain Monié

Chairperson of the Board of Directors

Notice** of 2026 Annual Meeting of Stockholders**

March 26, 2026

Irvine, CA

To our Stockholders:

Ingram Micro Holding Corporation (“Ingram Micro” or the “Company”) is holding its 2026 Annual Meeting of Stockholders (the “Annual Meeting”) virtually on Wednesday, May 13, 2026, at 8:30 am (Pacific), at www.virtualshareholdermeeting.com/INGM2026.

At the Annual Meeting, you will be asked to:

Our Board of Directors unanimously recommends that you vote “FOR” the nominees under Proposal 1, and “FOR” Proposals 2 and 3.

Stockholders of record as of the close of business on March 19, 2026, have the right to receive notice of and vote at the Annual Meeting, including any adjournments or postponements thereof. For ten (10) days prior to the Annual Meeting, a complete list of registered stockholders will be available for examination at our office at 3351 Michelson Drive, Suite 100, Irvine, CA 92612.

Your vote at the Annual Meeting is important. To ensure your participation at the Annual Meeting, we encourage you to submit your proxy as soon as possible by internet, phone, or mail, as described in greater detail on your proxy card or voter instruction form.

The proxy materials, including Ingram Micro’s 2025 Annual Report, are available at https://ir.ingrammicro.com/.

By Order of the Board of Directors,

Augusto Aragone

Executive Vice President, Secretary and General Counsel

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Important Notice Regarding the Availability of Proxy Materialsfor the Annual Meeting to be Held on May 13, 2026: This Proxy Statement and our 2025 Annual Report are available at www.proxyvote.com.