Robby Sai Kit Chang

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

Robby Sai Kit Chang is a Chief Financial Officer who has filed 27 SEC Form 4 insider transactions across 3 companies since 2018. The most recent filing, for URG, was dated Dec 29, 2025. Across all open-market trades the lifetime net is −$1.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.1M across reported positions.

"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

27 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2025-12-29 URG Grant (A) $0 EDGAR
2025-12-29 URG Mixed $0 EDGAR
2025-09-26 URG Mixed -$277.8K EDGAR
2025-01-21 URG Exer (M) +10,607 $11.8K EDGAR
2024-12-16 URG Grant (A) $0 EDGAR
2024-11-04 American Bitcoin Corp. (GRYP) Delisted Grant (A) +264,080 $0 EDGAR
2024-06-25 URG Mixed -$59.3K EDGAR
2024-06-24 URG Mixed -$51.3K EDGAR
2024-06-21 URG Mixed -$54.0K EDGAR
2023-12-11 URG Grant (A) $0 EDGAR
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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.