IB Acquisition Corp.

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

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

IB Acquisition Corp.

(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):

IB Acquisition Corp.

1200 N Federal Highway, Suite 215

Boca Raton, FL 33432

To the Stockholders of IB Acquisition Corp.

You are cordially invited to attend the Annual Meeting of Stockholders (the “Annual Meeting”) of IB Acquisition Corp. (the “Company”). The Annual Meeting will be held virtually at 10:00 AM Eastern Time on December 16, 2026, or at such other time or other date to which the meeting may be adjourned. The Annual Meeting will be a virtual meeting held via live webcast. There will not be a physical meeting location.

We have prepared a proxy statement with detailed information about the matters that will be covered at the Annual Meeting. We urge you to read the proxy statement carefully. The proxy statement and proxy card are being mailed on or about November 4, 2026 to all stockholders of record as of October 28, 2026. If you plan to attend the virtual Annual Meeting, you will need the control number found on your proxy card, voting instruction form or notice.

If you are a stockholder of record, you can participate and vote your shares in the Annual Meeting by visiting https://www.cstproxy.com/ibacquisition/am2026 and entering the control number included on your Proxy Card.

If you own your shares in “street name,” that is, through a brokerage account or in another nominee form, you must provide instructions to the broker or nominee as to how your shares should be voted. Your broker or nominee will usually provide you with the appropriate instruction forms at the time you receive the proxy materials. If you own your shares in this manner, you cannot vote at the Annual Meeting unless you receive a proxy to do so from the broker or the nominee.

Your vote is very important, regardless of the number of shares of our voting securities that you own. Whether or not you expect to attend the virtual Annual Meeting, please vote as promptly as possible to ensure your representation and the presence of a quorum at the Annual Meeting. Only stockholders who held shares at the close of business on the record date, October 28, 2026, may vote at the Annual Meeting. As an alternative to voting online during the Annual Meeting, you may vote in advance of the Annual Meeting, via the Internet or by signing, dating and returning the proxy card. If your shares are held in the name of a broker, trust, bank or other nominee, and you receive these materials through your broker or through another intermediary, please complete and return the materials in accordance with the instructions provided to you by such broker or other intermediary or contact your broker directly in order to obtain a proxy issued to you by your nominee holder to attend the meeting and vote in person. Failure to do so may result in your shares not being eligible to be voted by proxy at the Annual Meeting.

We look forward to seeing you virtually on December 16, 2026.

Important Notice Regarding the Availability of Proxy Materials

for the Stockholder Meeting to be Held on December 16, 2026.

Electronic copies of the Notice of Annual Stockholder Meeting, our Proxy Statement and our Annual Report on Form 10-K for the fiscal year ended September 30, 2025 (the “Annual Report”) are available online athttps://www.cstproxy.com/ibacquisition/am2026.

IB Acquisition Corp.

1200 N Federal Highway, Suite 215

Boca Raton, FL 33432

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

To Be Held December 16, 2026

TO THE STOCKHOLDERS OF IB ACQUISITION CORP.:

NOTICE IS HEREBY GIVEN that the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of IB Acquisition Corp. (the “Company”) will be held on December 16, 2026, at 10:00 AM Eastern Time. The Annual Meeting will be a virtual meeting held via live webcast at https://www.cstproxy.com/ibacquisition/am2026. There will not be a physical meeting location. If you encounter any difficulties while accessing the virtual meeting during the check-in or meeting time, a technical assistance phone number will be made available on the virtual meeting registration page 15 minutes prior to the start time of the meeting.

At the Annual Meeting, the items of business to be voted on are:

Only stockholders of record of the Company at the close of business on October 28, 2026 (the “Record Date”), are entitled to notice of and to vote at the Annual Meeting or any adjournment or postponement thereof. A complete list of these stockholders will be open for the examination of any stockholder of record at the Company’s principal executive offices located at 1200 N Federal Highway, Suite 215, Boca Raton, FL 33432 during ordinary business hours for a period of ten days prior to the Annual Meeting. The list will also be available for the examination of any stockholder of record present at the virtual Annual Meeting. The Annual Meeting may be adjourned or postponed from time to time without notice other than by announcement at the meeting.

This Notice of Annual Meeting of Stockholders and proxy statement, along with a proxy card and our Annual Report, was first mailed on or about November 4, 2026 to our stockholders of record as of the Record Date.

Our proxy materials, including the Proxy Statement and Annual Report on Form 10-K for the fiscal year ended September 30, 2025, are available electronically at https://www.cstproxy.com/ibacquisition/am2026.

**YOUR VOTE IS IMPORTANT.**Please read the proxy statement and the instructions on the proxy card and then, whether or not you plan to attend the Annual Meeting, and no matter how many shares you own, please submit your proxy promptly via the Internet, or by completing, dating and returning your proxy card in the envelope provided. This will not prevent you from voting at the Annual Meeting. It will, however, help to assure a quorum and to avoid added proxy solicitation costs. You may revoke your proxy at any time before the vote is taken.

WHETHER OR NOT YOU PLAN TO ATTEND THE MEETING, PLEASE SIGN AND DATE THE ENCLOSED PROXY AND RETURN IT IN THE ENVELOPE PROVIDED.

TABLE OF CONTENTS

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IB ACQUISITION CORP.

PROXY STATEMENT

FOR

ANNUAL MEETING OF STOCKHOLDERS

To Be Held December 16, 2026