X0609 4 2026-07-06 0 0002136530 Meridian3 Industrials Acquisition Corp MIAC 0001264701 FOSTER JEFFREY H false 1330 AVENUE OF THE AMERICAS, SUITE 23A NEW YORK CITY NY 10019 0 1 0 0 Chief Financial Officer 0 Class B Ordinary Shares 2026-07-06 4 J 0 396875 0.005 A Class A Ordinary Shares, par value $0.0001 per share 396875 396875 I By Trust Private Placement Warrants (Right to Buy) 11.50 2026-07-06 4 J 0 125000 1.00 A Class A Ordinary Shares, par value $0.0001 per share 125000 125000 I By Trust The Class B Ordinary Shares, par value $0.0001 per share ("Class B Shares"), have no expiration date and are convertible into Class A Ordinary Shares, par value $0.0001 per share ("Class A Shares"), of the Issuer at any time at the option of the holder on a one-for-one basis and will otherwise automatically convert into Class A Shares at the time of the Issuer's initial business combination on a one-for-one basis. Pursuant to a securities assignment agreement between the Reporting Person and Meridian3 Partners Sponsor LLC (the "Sponsor"), upon the closing of the Issuer's initial public offering (the "IPO"), the Sponsor transferred 396,875 Class B Shares to the Reporting Person for a purchase price of $0.005 per share. Each Private Placement Warrant of the Issuer reported herein entitles the holder thereof to purchase one Class A Share at a price of $11.50 per share, subject to adjustment as described in the registration statement of the Issuer. The Private Placement Warrants will become exercisable 30 days after the completion of the Issuer's initial business combination and will expire at 5:00 p.m., New York City time, five years after the completion of the Issuer's initial business combination or earlier upon redemption or the Issuer's liquidation. Pursuant to a warrant assignment agreement between the Reporting Person and the Sponsor, upon the closing of the IPO, the Sponsor transferred 125,000 Private Placement Warrants to the Reporting Person. The Sponsor purchased the Private Placement Warrants at a price of $1.00 per warrant in a private placement that closed simultaneously with the closing of the IPO. The price reported reflects the per-warrant purchase price paid by the Sponsor, which is the price at which the warrants were transferred to the Reporting Person. The Reporting Person beneficially holds 396,875 Class B Shares and 125,000 Private Placement Warrants through a trust, the Foster Family Revocable Living Trust, and 25,000 Class B Shares previously reported on Form 3 directly in their own name. /s/ Foster Jeffrey H 2026-07-07