Sec Form 3 Filing - You Harry L. @ Berto Acquisition Corp. - 2025-04-29

FORM 3 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 You Harry L. 2. Issuer Name and Ticker or Trading Symbol Berto Acquisition Corp. [ TACO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) Interim CFO (Last) (First) (Middle) 1180 NORTH TOWN CENTER DRIVE,, SUITE 100 3. Date of Earliest Transaction (MM/DD/YY) 04/29/2025 (Street) LAS VEGAS, NV89144 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 2,401,200 ( 1 ) D Ordinary Shares 2,688,300 ( 2 ) I ( 3 ) See footnote. ( 3 )

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 You Harry L. 1180 NORTH TOWN CENTER DRIVE, SUITE 100 LAS VEGAS, NV89144 X X Interim CFO Berto Acquisition Sponsor LLC 1180 NORTH TOWN CENTER DRIVE, SUITE 100 LAS VEGAS, NV89144 X X Signatures Berto Acquisition Sponsor LLC, /s/ Harry L. You, Managing Member 04/29/2025 Signature of Reporting Person Date /s/ Harry L. You, Name: Harry L. You 04/29/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The ordinary shares reported herein include up to 313,200 ordinary shares subject to forfeiture to Berto Acquisition Corp. (the "Issuer") depending on the extent to which the underwriters' over-allotment option is exercised in connection with the Issuer's initial public offering of units, as described in the Issuer's Registration Statement on Form S-1 (File No. 333-286023) (the "Registration Statement"). ( 2 )The ordinary shares reported herein include up to 391,500 ordinary shares subject to forfeiture to the Issuer depending on the extent to which the underwriters' over-allotment option is exercised in connection with the Issuer's initial public offering of units, as described in the Registration Statement. ( 3 )Berto Acquisition Sponsor, LLC (the "Sponsor") is the record holder of the securities reported herein. Harry L. You is the sole managing member of the Sponsor and has voting and investment discretion with respect to the ordinary shares held of record by the Sponsor. Harry L. You disclaims any beneficial ownership of the securities held by the Sponsor other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

Remarks: Berto Acquisition Sponsor, LLC may be deemed a director by deputization by virtue of its representation on the board of directors of the Issuer. See Exhibit 99.1 - Joint Filer Information, which is incorporated herein by reference and describes in further detail the relationships of the Reporting Persons to 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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