Mark Chalmers $UUUU SEC Form 4 Insider Trading

Mark Chalmers has filed a total of 3 insider trades in $UUUU since 2021. Their most recent trade was a sale of 150,000 shares, made on Nov 19, 2025. Their largest trade was a sale of 150,000 shares, made on Nov 19, 2025. We estimate that they now own 909,321 shares of $UUUU, worth an estimated $21.2 million.

Insider Trading at $UUUU

There have been a total of 91 insider trades reported at $UUUU since 2021, with 112,297 shares purchased and 1.8 million shares sold. The most active insider traders in $UUUU stock have been Curtis Moore, Timothy James Carstens, and Mark Chalmers. The most recent trade was a sale of 10,000 shares reported by Curtis Moore (Senior VP, Marketing &), made on Mar 02, 2026.

$UUUU Executives and Stock Owners with Insider Trades

• Curtis Moore, Senior VP Marketing and

• Timothy James Carstens, EVP, Heavy Minerals Sands Ops

• Mark Chalmers, President & CEO

• Daniel Kapostasy, VP Technical Services

• Debra Bennethum, VP Critical Minerals &

• Dee Ann Nazarenus, VP Human Resources and

• Kevin Martin Balloch, SVP, Project Finance

• Curtis Moore, Senior VP, Marketing &

• Scott Bakken, VP Regulatory Affairs

• Saleem Drera, VP Radioisotopes, Radiological

• Nathan Reed Bennett, CAO / Interim CFO

• Logan Shumway, VP Conventional Operations

• Mark Chalmers, CEO

• Logan Shumway, VP, Processing Operations

• David C. Frydenlund, Executive VP, CLO and

• Debra Bennethum, VP Critical Minerals/Strategic

• Daniel Kapostasy, VP, Technical Services

• Timothy James Carstens, Executive VP, Heavy Mineral

*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.