# EDGAR Filing Document

**Accession Number:** 0002027265
**File Stem:** 0001493152-26-016315
**Filing Date:** 2026-4
**Character Count:** 4903
**Document Hash:** 6ecedfd456bccc56ea8afd1aa2a95d02
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001493152-26-016315.hdr.sgml**: 20260413

**ACCESSION NUMBER**: 0001493152-26-016315

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260318

**FILED AS OF DATE**: 20260413

**DATE AS OF CHANGE**: 20260413

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** So Tsz Kiu
- **CENTRAL INDEX KEY:** 0002127428

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42596
- **FILM NUMBER:** 26856830

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** UNIT 1509-10, TOWER 1,
- **STREET 2:** EVER GAIN PLAZA 88 CONTAINER PORT ROAD
- **CITY:** KWAI CHUNG, NEW TERRITORIES
- **PROVINCE COUNTRY:** K3
- **ZIP:** 0000
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MASTERBEEF GROUP
- **CENTRAL INDEX KEY:** 0002027265
- **STANDARD INDUSTRIAL CLASSIFICATION:** RETAIL-EATING PLACES [5812]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 000000000
- **STATE OF INCORPORATION:** K3
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** UNIT 1509-10, TOWER 1
- **STREET 2:** EVER GAIN PLAZA 88 CONTAINER PORT ROAD
- **CITY:** KWAI CHUNG, NEW TERRITORIES
- **STATE:** K3
- **ZIP:** 0000
- **BUSINESS PHONE:** 852 3953 9388

**MAIL ADDRESS:**
- **STREET 1:** UNIT 1509-10, TOWER 1
- **STREET 2:** EVER GAIN PLAZA 88 CONTAINER PORT ROAD
- **CITY:** KWAI CHUNG, NEW TERRITORIES
- **STATE:** K3
- **ZIP:** 0000

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>So Tsz Kiu<br><sub>(Last) (First) (Middle)</sub><br>UNIT 1509-10, TOWER 1,<br>EVER GAIN PLAZA, 88 CONTAINER PORT ROAD<br><sub>(Street)</sub><br>KWAI CHUNG, NEW TERRITORIES, HONG KONG <br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>MASTERBEEF GROUP [ MB ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-03-18 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Ordinary Shares, par value $0.0005 | 3448125<sup>(1)</sup> | I | See Footnote No.<sup>(1)</sup> |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Represents the Ordinary Shares held by Thrivors Holdings Limited. The Reporting Person holds of record approximately 30% of the ordinary shares of Thrivors Holdings Limited. The Reporting Person, together with one other individual, is a member of the board of directors ofThrivors Holdings Limited and hence is deemed to have shared voting and investment power over the Ordinary Shares of the Issuer held by Thrivors Holdings Limited.

**Signature:** /s/ So Tsz Kiu  
**Date:** 2026-04-13

### Remarks:

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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**