Comparable stake leader
Chau Oi Wai
SEC ownership of MASTERBEEF GROUP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002027265.
Disclosed value leader
Chau Oi Wai
Comparable rows
0/6
Latest evidence
31 Mar 2026
- Public ticker
- MB on Nasdaq
- Parsed ownership sources
- 3/4/5 and 13F
- Largest SEC-reported holder
- Chau Oi Wai
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0002027265
- Issuer location
- Kwai Chung, New Territories, Hong Kong
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of MASTERBEEF GROUP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Chau Oi Wai
Disclosed value leader
Chau Oi Wai
Comparable rows
0/6
Latest evidence
31 Mar 2026
3/4/5
13F
Highest disclosed value: $67,536,393
6 rows are not safely comparable across share classes.
Quick read
Chau Oi Wai has the largest disclosed position value at $67.54M.
0 of 6 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Chau Oi Wai's linked filing trail.
Disclosed position value
Top 5
Chau Oi Wai
$67.54M
Chau Oi Yee
$53.65M
So Tsz Kiu
$25.83M
XTX Topco Ltd
$229.1K
GEODE CAPITAL MANAGEMENT, LLC
$64.4K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 6 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Chau Oi Wai |
3/4/5
Director, 10%+ Owner
|
—
class O/S missing
|
$67,536,393
9,016,875 shares
|
— | 18 Mar 2026 |
| Chau Oi Yee |
3/4/5
Director, 10%+ Owner
|
—
class O/S missing
|
$53,650,406
9,016,875 shares
|
— | 19 Mar 2026 |
| So Tsz Kiu |
3/4/5
Director, 10%+ Owner
|
—
class O/S missing
|
$25,826,456
3,448,125 shares
|
— | 18 Mar 2026 |
| XTX Topco Ltd |
13F
Company
|
—
class O/S missing
|
$229,057
38,692 shares
|
— | 31 Mar 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
—
class O/S missing
|
$64,397
10,878 shares
|
— | 31 Mar 2026 |
| UBS Group AG |
13F
Company
|
—
class O/S missing
|
$36,161
6,098 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 08 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-10 of 10 reporting-owner rows connected to MASTERBEEF GROUP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
10
Largest Forms 3/4/5 holder
Chau Oi Wai
Net 12M change
$0
Latest report
19 Mar 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Chau Oi Wai | Director, 10%+ Owner | $67,536,393 | Mixed | 18 Mar 2026 | ||
| Chau Oi Yee | Director, 10%+ Owner | $53,650,406 | Mixed | 19 Mar 2026 | ||
| So Tsz Kiu | Director, 10%+ Owner | $25,826,456 | Mixed | 18 Mar 2026 | ||
| Lam Yin Yam | Chief Financial Officer | $0 | Mixed | 16 Mar 2026 | ||
| Lee Shing Yan | Chief Operating Officer | $0 | Mixed | 18 Mar 2026 | ||
| Leung Lok Ming | Director | $0 | Mixed | 18 Mar 2026 | ||
| Liu Man Fai Danny | Director | $0 | Mixed | 18 Mar 2026 | ||
| Lam Ka Chun | Chief Executive Officer | $0 | Mixed | 18 Mar 2026 | ||
| Cheng Chung Fan | Director | $0 | Mixed | 18 Mar 2026 | ||
| Chan Hiu Wa | Director | $0 | Mixed | 18 Mar 2026 |
Recent insider transactions for MASTERBEEF GROUP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Chau Oi Yee | MB | Ordinary Shares, par value $0.0005 | 0 | 9,016,875 | 19 Mar 2026 | See Footnote No. | ||||
| So Tsz Kiu | MB | Ordinary Shares, par value $0.0005 | 0 | 3,448,125 | 18 Mar 2026 | See Footnote No. | ||||
| Liu Man Fai Danny | MB | Ordinary Shares, par value $0.0005 | 0 | 0 | 18 Mar 2026 | Direct | ||||
| Leung Lok Ming | MB | Ordinary Shares, par value $0.0005 | 0 | 0 | 18 Mar 2026 | Direct | ||||
| Cheng Chung Fan | MB | Ordinary Shares, par value $0.0005 | 0 | 0 | 18 Mar 2026 | Direct | ||||
| Lam Ka Chun | MB | Ordinary Shares, par value $0.0005 | 0 | 0 | 18 Mar 2026 | Direct | ||||
| Lee Shing Yan | MB | Ordinary Shares, par value $0.0005 | 0 | 0 | 18 Mar 2026 | Direct | ||||
| Chau Oi Wai | MB | Ordinary Shares, par value $0.0005 | 0 | 9,016,875 | 18 Mar 2026 | See Footnote No. | ||||
| Chan Hiu Wa | MB | Ordinary Shares, par value $0.0005 | 0 | 0 | 18 Mar 2026 | Direct | ||||
| Lam Yin Yam | MB | Ordinary Shares, par value $0.0005 | 0 | 0 | 16 Mar 2026 | Direct |
* marks a reported price that did not pass the local price check.