Company: NCEL
Filing Date: 2025-12-11
Form Type: 6-K
Source: 0001213900-25-120395
Chunk: 0

Company: NewcelX Ltd.
Filing Date: 2025-12-11
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the Month of December 2025 (Report No. 1)

Commission File Number: 001-39957

NEWCELX LTD.

(Translation of registrant’s name into English)

The Circle 6

8058 Zurich, Switzerland

(Address of principal executive office)

Indicate by check mark whether the registrant
files or will file annual reports under cover of Form 20-F or Form 40-F:

☒
Form 20-F ☐ Form 40-F

CONTENTS</div>

On December 11, 2025, NewcelX
Ltd., a corporation incorporated under the laws of Switzerland, issued a press release titled: “NewcelX Expands Intellectual Property
Footprint with Publication of DOXA Patent Application in China.” A copy of this press release is furnished herewith as Exhibit 99.1.

<div align='center'>1

EXHIBIT INDEX</div>

| Exhibit 
 Number  |     | Description of Document                                                                                                      |
| 99.1    |     | Press release titled: “NewcelX Expands Intellectual Property Footprint with Publication of DOXA Patent Application in China” |

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SIGNATURES</div>

Pursuant to the requirements
of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto
duly authorized.

| Date: December 11, 2025 | NewcelX Ltd. 
 By:          | /s/ Ronen Twito |                         |
|:------------------------|:-------------|:----------------|:------------------------|
|                         |              | Name:           | Ronen Twito             |
|                         |              | Title:          | Chief Executive Officer |

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