Sec Form 4 Filing - Lin Shang Ju @ Miluna Acquisition Corp - 2025-11-12

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 Lin Shang Ju 2. Issuer Name and Ticker or Trading Symbol Miluna Acquisition Corp [ MMTX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) See Remarks (Last) (First) (Middle) C/O MILUNA ACQUISITION CORP 12F, NO. 43,, CHENG GONG ROAD, SEC 4, NEIHU 3. Date of Earliest Transaction (MM/DD/YY) 11/12/2025 (Street) TAIPEI, F5114202 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 Ordinary Shares 11/12/2025 D 1,848,100 ( 1 ) D 25,000 ( 3 ) I ( 1 ) ( 2 ) See FN ( 1 ) ( 2 )

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 Lin Shang Ju C/O MILUNA ACQUISITION CORP 12F, NO. 43, CHENG GONG ROAD, SEC 4, NEIHU TAIPEI, F5114202 X X See Remarks Signatures /s/ Shang Ju Lin, Name: Shang Ju Lin 11/17/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )MilunaC Technology Limited (the "Sponsor") is the record holder of the securities reported herein. ( 2 )On November 12, 2025, Mr. Shang Ju Lin resigned as the sole director of the Sponsor, and Mr. Hao Yuan was appointed as the sole director. In connection with such transition, Mr. Lin transferred portions of his ordinary shares of the Sponsor to Mr. Yuan and certain other person. Following these transfers, the Sponsor has multiple shareholders, each of whom has sole voting and dispositive power over his or her respective equity interests in the Sponsor. No shareholder of the Sponsor, including Mr. Lin, has the right to vote or dispose of, or direct the voting or disposition of, the securities of Miluna Acquisition Corp (the "Issuer") held by the Sponsor. Accordingly, the Sponsor reports beneficial ownership of 100% of the securities it directly holds, and no individual shareholder of the Sponsor is deemed to beneficially own more than his or her respective indirect pecuniary interest in such securities. ( 3 )On July 18, 2025, the Sponsor transferred 25,000 insider shares to Mr. Shang Ju Lin as the Issuer's chief executive officer pursuant to an executed share transfer agreement.

Remarks: Shang Ju Lin is the chief executive officer and director of the Issuer.

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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