Robby Sai Kit Chang

Companies

• UR-ENERGY INCBoard member Apr 3, 2018 to now¹
• American BitcoinBoard member Feb 16, 2024 to Nov 4, 2024²
• American BitcoinChief executive officer Feb 16, 2024 to Feb 16, 2024²
• Riot Platforms, Inc.Chief financial officer Mar 7, 2018 to Sep 24, 2018³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• American Bitcoin ABTC3,573,728 shares⁴$28.5M at $7.96Nov 4, 2024
• UEUR-ENERGY INC URG96,449 shares⁵$86.8K at $0.90Aug 24, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Aug 24, 2026Sold 75,588 shares at $1.41 of UR-ENERGY INC⁵
• Aug 24, 2026Exercised options 87,858 shares at $1.04 of UR-ENERGY INC⁵
• Dec 24, 2025Returned to company 16,407 shares at $1.45 of UR-ENERGY INC⁶
• Dec 24, 2025Exercised options 16,407 shares at $1.45 of UR-ENERGY INC⁶
• Sep 25, 2025Sold 213,914 shares at $1.75 of UR-ENERGY INC⁷
• Sep 25, 2025Exercised options 213,914 shares at $0.45 of UR-ENERGY INC⁷
• Jan 17, 2025Exercised options 10,607 shares at $1.12 of UR-ENERGY INC⁸
• Oct 31, 2024Granted 264,080 shares of American Bitcoin⁴
• Jun 24, 2024Sold 73,474 shares at $1.38 of UR-ENERGY INC⁹
• Jun 24, 2024Exercised options 73,474 shares at $0.58 of UR-ENERGY INC⁹
• Jun 21, 2024Sold 60,000 shares at $1.43 of UR-ENERGY INC¹⁰
• Jun 21, 2024Exercised options 60,000 shares at $0.58 of UR-ENERGY INC¹⁰
• Jun 20, 2024Sold 60,100 shares at $1.47 of UR-ENERGY INC¹¹
• Jun 20, 2024Exercised options 60,100 shares at $0.58 of UR-ENERGY INC¹¹
• Nov 17, 2023Sold 50,527 shares at $1.66 of UR-ENERGY INC¹²
• Nov 17, 2023Exercised options 50,527 shares at $0.66 of UR-ENERGY INC¹²
• Aug 28, 2023Exercised options 10,206 shares at $1.27 of UR-ENERGY INC¹³
• Aug 10, 2023Sold 55,653 shares at $1.14 of UR-ENERGY INC¹⁴
• Aug 10, 2023Exercised options 55,653 shares at $0.69 of UR-ENERGY INC¹⁴
• Jan 30, 2023Sold 24,500 shares at $1.28 of UR-ENERGY INC¹⁵
• Jan 30, 2023Exercised options 24,500 shares at $0.58 of UR-ENERGY INC¹⁵
• Jan 27, 2023Sold 175,500 shares at $1.28 of UR-ENERGY INC¹⁶
• Jan 27, 2023Exercised options 175,500 shares at $0.58 of UR-ENERGY INC¹⁶
• Nov 14, 2022Exercised options 24,851 shares at $1.38 of UR-ENERGY INC¹⁷
• Nov 5, 2021Exercised options 22,488 shares at $1.90 of UR-ENERGY INC¹⁸