Robby Sai Kit Chang

CIK 1732700 · Chief Financial Officer · last filed 2025-12-29

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$2.07M

Companies

3

Total Filings

27

Lifetime Open-Market Net

-$1.05M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
URG Director 100,586 $1.57 $157.9K -$1.05M 25 2025-12-29
American Bitcoin Corp. (GRYP) Delisted Director 3,573,728 $6.90 $24.66M $0 1 2024-11-04
RIOT Chief Financial Officer 72,000 $26.61 $1.92M $0 1 2018-09-24

Recent Filings · Page 3 of 3

27 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2020-11-17 URG Grant (A) $0 EDGAR
2020-08-24 URG Exer (M) +10,157 $5.6K EDGAR
2019-11-07 URG Grant (A) $0 EDGAR
2018-12-18 URG Grant (A) $0 EDGAR
2018-09-24 RIOT Exer (M) +12,000 $0 EDGAR
2018-08-21 URG Grant (A) $0 EDGAR
2018-04-03 URG Grant (A) $0 EDGAR
Showing 2127 of 27
Page 3 of 3
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.