Comparable stake leader
Tsang Chun Ho Anthony
SEC ownership of Alpha Technology Group Ltd
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001967621.
Disclosed value leader
Tsang Chun Ho Anthony
Comparable rows
0/2
Latest evidence
31 Mar 2026
- Public ticker
- ATGL on Nasdaq
- Parsed ownership sources
- 3/4/5 and 13F
- Largest SEC-reported holder
- Tsang Chun Ho Anthony
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0001967621
- Issuer location
- 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 Alpha Technology Group Ltd (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
Tsang Chun Ho Anthony
Disclosed value leader
Tsang Chun Ho Anthony
Comparable rows
0/2
Latest evidence
31 Mar 2026
3/4/5
13F
Highest disclosed value: $7,759,239
2 rows are not safely comparable across share classes.
Quick read
Tsang Chun Ho Anthony has the largest disclosed position value at $7.76M.
0 of 2 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 Tsang Chun Ho Anthony's linked filing trail.
Disclosed position value
Top 2
Tsang Chun Ho Anthony
$7.76M
UBS Group AG
$3K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-2 of 2 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Tsang Chun Ho Anthony |
3/4/5
President, Director
|
—
mixed-class rows
|
$7,759,239
1,597,500 shares
mixed-class rows
|
— | 31 Mar 2026 |
| UBS Group AG |
13F
Company
|
—
class O/S missing
|
$2,994
200 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 05 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 1-5 of 5 reporting-owner rows connected to Alpha Technology Group Ltd. Open a relationship link for the CIK-to-CIK filing trail.
Rows
5
Largest Forms 3/4/5 holder
Tsang Chun Ho Anthony
Net 12M change
$0
Latest report
31 Mar 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Tsang Chun Ho Anthony | President, Director | $7,759,239 | Mixed | 31 Mar 2026 | ||
| Su Jiang Qiong | Director | $0 | Mixed | 31 Mar 2026 | ||
| Choi Tan Yee | Chief Financial Officer, Director | $0 | Mixed | 31 Mar 2026 | ||
| Tang Chui Kuen | Director | $0 | Mixed | 18 Mar 2026 | ||
| Li John | Director | $0 | Mixed | 31 Mar 2026 |
Recent insider transactions for Alpha Technology Group Ltd
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Tsang Chun Ho Anthony | ATGL | Class B Ordinary Shares | 0 | 1,200,000 | 31 Mar 2026 | Direct | ||||
| Tsang Chun Ho Anthony | ATGL | Class A Ordinary Shares | 0 | 397,500 | 31 Mar 2026 | Direct | ||||
| Choi Tan Yee | ATGL | Class B Ordinary Share | 0 | 0 | 31 Mar 2026 | Direct | ||||
| Choi Tan Yee | ATGL | Class A Ordinary Share | 0 | 0 | 31 Mar 2026 | Direct | ||||
| Li John | ATGL | Class B Ordinary Shares | 0 | 0 | 31 Mar 2026 | Direct | ||||
| Li John | ATGL | Class A Ordinary Shares | 0 | 0 | 31 Mar 2026 | Direct | ||||
| Su Jiang Qiong | ATGL | Class B Ordinary Shares | 0 | 0 | 31 Mar 2026 | Direct | ||||
| Su Jiang Qiong | ATGL | Class A Ordinary Shares | 0 | 0 | 31 Mar 2026 | Direct | ||||
| Tang Chui Kuen | ATGL | Class B Ordinary Shares | 0 | 0 | 18 Mar 2026 | Direct | ||||
| Tang Chui Kuen | ATGL | Class A Ordinary Shares | 0 | 0 | 18 Mar 2026 | Direct |
* marks a reported price that did not pass the local price check.