Sec Form 3 Filing - Cassel Charles T. III @ CSLM Digital Asset Acquisition Corp III, Ltd - 2025-08-26

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 Cassel Charles T. III 2. Issuer Name and Ticker or Trading Symbol CSLM Digital Asset Acquisition Corp III, Ltd [ KOYN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) C/O CSLM DIGITAL ASSET ACQ CORP III, LTD, 2400 E. COMMERCIAL BOULEVARD, SUITE 900 3. Date of Earliest Transaction (MM/DD/YY) 08/26/2025 (Street) FORT LAUDERDALE, FL33308 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

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 Class B ordinary shares ( 2 ) ( 2 ) ( 2 ) Class A ordinary shares 7,566,667 I ( 1 ) See Footnote ( 1 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Cassel Charles T. III C/O CSLM DIGITAL ASSET ACQ CORP III, LTD 2400 E. COMMERCIAL BOULEVARD, SUITE 900 FORT LAUDERDALE, FL33308 X Chief Executive Officer Signatures /s/ Charles T. Cassel III 08/26/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )CSLM Acquisition Sponsor II, Ltd (the "Sponsor"), is the record holder of the Class B ordinary shares reported herein. The legal and beneficial owners of the Sponsor are: (i) Consilium Investment Capital, Inc., which is owned and controlled by Charles T Cassel III and Jonathan M. Binder and (ii) Samara CSLM, LLC which is owned and controlled by Vikas Mittal. By virtue of their shared control over the manager of our Sponsor, Mr. Cassel, Mr. Binder, and Mr. Vittal may be deemed to beneficially own shares held by the Sponsor. Mr. Cassel disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest he may have therein, directly or indirectly. Up to an aggregate of 1,000,000 such shares are subject to forfeiture if the over-allotment option is not exercised in full or in part by the underwriter. ( 2 )The Class B ordinary shares will automatically convert into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination, or earlier at the option of the holders thereof on a one-for-one basis, subject to the adjustments. The Class B ordinary shares have no expiration date.

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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