Company: KOYNU
Filing Date: 2025-12-02
Form Type: 425
Source: 0001829126-25-009581
Chunk: 0

Company: CSLM Digital Asset Acquisition Corp III, Ltd
Filing Date: 2025-12-02
Form: 425
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

Current Report

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

December 2, 2025

Date of Report (Date of earliest event reported)

CSLM DIGITAL ASSET ACQUISITION CORP III, LTD

(Exact Name of Registrant as Specified in its Charter)</div>

000-00000

| Cayman Islands               |     | N/A00-0000000      |
| (State or other jurisdiction 
 of incorporation)            |     | -I.R.S. Employer   
 Identification No. |

| 2400 E. Commercial Boulevard, Suite 900  
 Ft. Lauderdale, FL                       |     |     33308 |
| (Address of Principal Executive Offices) |     | -Zip Code |

<div align='center'>Registrant’s telephone number, including area code: (954) 315-9381

N/A

(Former name or former address, if changed since last report)</div>

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

| ☒ | Written communications pursuant to Rule 425 under the Securities Act             |
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act               |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act |

Securities registered pursuant to Section 12(b) of the Act:

| Title of each class                                                                                                       |     | Trading Symbol(s) |     | Name of each exchange on which registered |
| Units, each consisting of one Class A ordinary share, par value $0.0001 per share, and one-half of one redeemable warrant |     | KOYNU             |     | The Nasdaq Stock Market LLC               |
| Class A ordinary shares, par value $0.0001 per share                                                                      |     | KOYN              |     | The Nasdaq Stock Market LLC               |
| Warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share          |     | KOYNW             |     | The