Sec Form 4 Filing - Jiang Zhenjun @ Iron Horse Acquisitions Corp. - 2025-09-30

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Jiang Zhenjun 2. Issuer Name and Ticker or Trading Symbol Iron Horse Acquisitions Corp. [ UCFI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chairman of the Board and CEO (Last) (First) (Middle) C/O ZHONG GUO LIANG TOU GRP LTD, RM 2712, ZHUHAI CENTER BLDING, NO. 1663 YINWAN RD 3. Date of Earliest Transaction (MM/DD/YY) 09/30/2025 (Street) ZHUHAI, NY519000 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 09/30/2025 A 47,689,349 ( 1 ) ( 2 ) A $ 0 47,689,349 I Through Rosy Sea Holdings Limited

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Jiang Zhenjun C/O ZHONG GUO LIANG TOU GRP LTD, RM 2712 ZHUHAI CENTER BLDING, NO. 1663 YINWAN RD ZHUHAI, NY519000 X X Chairman of the Board and CEO Signatures /s/ Zhenjun Jiang, Director 09/30/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The reported amount of shares of Common Stock were received as consideration in connection with the Business Combination Agreement, as defined in the Issuer's prospectus filed with the Securities and Exchange Commission on May 15, 2025 (the "Business Combination Agreement"). The Reporting Person is the sole shareholder and director of Rosy Sea Holdings Limited, a company incorporated and existing under the laws of the British Virgin Islands, which directly or indirectly holds substantially all of the consolidated assets and business of the Issuer. ( 2 )The reported amount of shares of Common Stock represents the maximum 47,888,000 that the Reporting Person would have received, assuming the public stockholders of Iron Horse Acquisition Corp. ("Iron Horse") elect to redeem all such eligible shares of Common Stock, reduced on a one-for-one basis by 198,651 shares of Common Stock that remain in Iron Horse's trust account immediately prior to the closing of the business combination contemplated by the Business Combination Agreement.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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