Comparable stake leader
Chan Kam Biu Richard
SEC ownership of Green Circle Decarbonize Technology Ltd
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001926293.
Disclosed value leader
Chan Kam Biu Richard
Comparable rows
6/6
Latest evidence
31 Mar 2026
- Public ticker
- GCDT on NYSE
- Parsed ownership sources
- 13D/G, 3/4/5, and 13F
- Largest SEC-reported holder
- Chan Kam Biu Richard
- Latest 13D/G holder
- Chan Kam Biu Richard
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0001926293
- Issuer location
- Hong Kong, Hong Kong
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Green Circle Decarbonize Technology 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
Chan Kam Biu Richard
Disclosed value leader
Chan Kam Biu Richard
Comparable rows
6/6
Latest evidence
31 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 49%
13D/G row: Chan Kam Biu Richard
Quick read
Chan Kam Biu Richard leads the comparable SEC ownership view at 49%.
6 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 Chan Kam Biu Richard's linked filing trail.
Comparable ownership
Top 5
Chan Kam Biu Richard
49%
CITADEL ADVISORS LLC
0.52%
XTX Topco Ltd
0.13%
RENAISSANCE TECHNOLOGIES LLC
0.11%
UBS Group AG
0.01%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 6 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Chan Kam Biu Richard |
13D/G
3/4/5
Chief Executive Officer, Director
|
49%
|
$5,024,400
6,360,000 shares
|
$0 | 31 Mar 2026 |
| CITADEL ADVISORS LLC |
13F
Company
|
0.52%
|
$67,407
66,740 shares
|
— | 31 Mar 2026 |
| XTX Topco Ltd |
13F
Company
|
0.13%
|
$17,201
17,031 shares
|
— | 31 Mar 2026 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
0.11%
|
$14,532
14,388 shares
|
— | 31 Mar 2026 |
| UBS Group AG |
13F
Company
|
0.01%
|
$754
747 shares
|
— | 31 Mar 2026 |
| Caitong International Asset Management Co., Ltd |
13F
Company
|
0%
|
$2
2 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 06 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 1-6 of 6 reporting-owner rows connected to Green Circle Decarbonize Technology Ltd. Open a relationship link for the CIK-to-CIK filing trail.
Rows
6
Largest Forms 3/4/5 holder
Chan Kam Biu Richard
Net 12M change
$0
Latest report
18 Mar 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Chan Kam Biu Richard | Chief Executive Officer, Director | Mixed | 18 Mar 2026 | |||
| Matsuda Michele Takis | Director | Mixed | 18 Mar 2026 | |||
| Man Chan Sze | Director | Mixed | 18 Mar 2026 | |||
| Hui Ringo Wing Kun | Director | Mixed | 18 Mar 2026 | |||
| Lai Tai Yan | Chief Financial Officer | Mixed | 18 Mar 2026 | |||
| Lui Lai Yuen | Chief Administrative Officer, Director | Mixed | 18 Mar 2026 |
Recent insider transactions for Green Circle Decarbonize Technology 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Chan Kam Biu Richard | GCDT | Ordinary Shares | 0 | 5,280,000 | 18 Mar 2026 | By Joyful Star Limited | ||||
| Chan Kam Biu Richard | GCDT | Ordinary Shares | 0 | 1,080,000 | 18 Mar 2026 | By Green Circle Limited |
* marks a reported price that did not pass the local price check.