Issuer positions
2
Reporting Owner Activity for Robby Sai Kit Chang
Form 3/4/5 issuer positions and transaction evidence for this reporting owner.
Largest position
Gryphon Digital Mining, Inc.
Disclosed value
$4.38M
Recent activity
Available
- Location
- Toronto, CO
- Ownership summary
-
Disclosed holdings value
$4,375,199
Estimated from parsed Forms 3/4/5 holdings when values are available.
Issuer positions
2
Distinct issuers linked to this reporting owner in parsed SEC filings.
Largest parsed position
American Bitcoin Corp. (ABTC)
About $4.25M reported in parsed filings.
Latest ownership filing
29 Dec 2025
Most recent owner-level filing date in the parsed SEC record.
Values come from parsed SEC Forms 3/4/5 and should be verified against the source filing.
- Reporting signature
- /s/ Roger L. Smith Roger L. Smith pursuant to Power of Attorney
- Source filings
- Open source filing history
Identity
SEC ownership signals
SEC record
SEC evidence
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Reported issuer positions for Robby Sai Kit Chang
ABTC
Forms 3/4/5
Gryphon Digital Mining, Inc.
- Relationship
- Director
- Holdings value
- $4,252,736
- Past year net change
- Change %
- Report period
- 31 Oct 2024
URG
Forms 3/4/5
UR-ENERGY INC
- Relationship
- Director
- Holdings value
- $122,463
- Past year net change
- -$374,563
- Change %
- -75%
- Report period
- 23 Dec 2025
Insider Transactions Reported by Robby Sai Kit Chang:
| Sym | Company | Class | Transaction | % | Reported value | Reported price | Shares | Shares after | Date | Ownership |
|---|
* indicates a reported price that failed the local validity check.