Lightbridge LTBR Insider Ownership

Updated Oct 16, 2026

Over the trailing 12 months, LTBR insiders sold $1.28 million worth of shares (85.91K shares) in open-market trades, with no open-market purchases.

• Behind Lightbridge's open-market sales in the past 12 months were 6 insiders, and no insider bought.
• Andrey Mushakov (EVP, Nuclear Operations) was the top open-market seller of Lightbridge over the past 12 months, with $502,015 sold (30.29K shares) and the latest sale on January 29, 2026.
• Sherri Goodman (Director) made the most recent open-market trade by an insider of Lightbridge, a sale of 1.12K shares for $7,020 on October 1, 2026.
• Away from the open market, LTBR insiders received 456.61K shares in stock awards and gave up 157.31K shares to cover taxes or exercise prices over the last 12 months.
• Per Business Quant data, Lightbridge insiders hold 2.36Mn shares in total based on their latest Form 4 filings.
• Lightbridge insiders hold 2.35Mn shares directly (99.61% of their total) and 9.15K shares (0.39%) indirectly, through entities such as trusts and partnerships.
• Business Quant counts 9 insiders with holdings in Lightbridge stock, among the officers, directors and 10% owners who have filed a Form 4 in the past two years.
• Lightbridge's three biggest insider holders are Seth Grae (President and CEO, 872.08K shares), Andrey Mushakov (EVP & Chief Operating Officer, 457.67K shares) and Larry Goldman (CFO, 377.69K shares), based on their latest Form 4 filings.
• Of the shares held by LTBR insiders, 36.94% belong to Seth Grae.
• Institutions owned 39.39% of LTBR shares as of Q2 2026; insiders' latest Form 4 filings account for about 6.31%, leaving roughly 54.30% with other investors, including the public.
• A total of 45 Form 4 filings with transactions in Lightbridge stock were made over the past 12 months, by 9 insiders.
• Insider figures for LTBR include Form 4 filings through October 2, 2026.