Sec Form 4 Filing - LightWave Founders LLC @ LightWave Acquisition Corp. - 2025-06-26

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 LightWave Founders LLC 2. Issuer Name and Ticker or Trading Symbol LightWave Acquisition Corp. [ OYSE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O LIGHTWAVE ACQUISITION CORP., 14755 PRESTON ROAD SUITE 520 3. Date of Earliest Transaction (MM/DD/YY) 06/26/2025 (Street) DALLAS, TX75254 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 Class A ordinary shares 06/26/2025 P 606,250 ( 1 ) A $ 10 606,250 D ( 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 Warrant ( 1 ) $ 11.5 06/26/2025 P 606,250 ( 3 ) ( 4 ) Class A Ordinary Shares 606,250 ( 1 ) 606,250 D ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other LightWave Founders LLC C/O LIGHTWAVE ACQUISITION CORP. 14755 PRESTON ROAD SUITE 520 DALLAS, TX75254 X Bennett Robert Michael C/O LIGHTWAVE ACQUISITION CORP. 14755 PRESTON ROAD SUITE 520 DALLAS, TX75254 X Chief Executive Officer Signatures /s/ Robert Bennett, Managing Member of LightWave Founders LLC 07/09/2025 Signature of Reporting Person Date /s/ Robert Bennett 07/09/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Simultaneously with the consummation of the Company's initial public offering, LightWave Founders LLC (the "Sponsor") acquired, at a price of $10.00 per unit, 606,250 units (the "Private Units") in a private placement for an aggregate purchase price of $6,062,500. Each Private Unit consists of one Class A ordinary share, par value $0.0001, and one-half of one warrant. ( 2 )The Sponsor is the record holder of the shares reported herein. Robert Bennett is the managing member of the Sponsor and holds voting and investment discretion with respect to the securities held of record by the Sponsor. As such, Mr. Bennett may be deemed to have beneficial ownership of the securities held of record by the Sponsor. Mr. Bennett disclaims any beneficial ownership except to the extent of his pecuniary interest therein. ( 3 )The warrants included in the Private Units will become exercisable at any time commencing 30 days after the completion of the Company's initial business combination. ( 4 )The warrants will expire five years after the completion of the Company's initial business combination, at 5:00 p.m., New York City time, or earlier upon redemption or liquidation.

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).

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