Insider Trading January 30, 2026

Nano Nuclear Energy CEO sells $6.6M in shares as options exercise boosts holdings

James John Walker disposed of 204,990 shares and exercised options for 170,000 shares on Jan. 28, while the stock slides and company advances reactor projects

By Ajmal Hussain NNE
Nano Nuclear Energy CEO sells $6.6M in shares as options exercise boosts holdings
NNE

Nano Nuclear Energy Inc.'s CEO James John Walker sold 204,990 common shares on January 28, 2026, for roughly $6.6 million, with sale prices spanning $33.6438 to $35.2733. On the same day he exercised options to buy 170,000 shares at $1.50 each for $255,000. The company's shares have since fallen to $29.40, a 15.4% decline over the past week, and trade inside a 52-week range of $17.26 to $60.87. Nano Nuclear reported a market capitalization of $1.62 billion and remains unprofitable over the last twelve months, while maintaining a strong liquidity position according to InvestingPro metrics. The company has also announced leadership and partnership moves tied to its microreactor technologies.

Key Points

  • CEO James John Walker sold 204,990 Nano Nuclear Energy shares on Jan. 28, 2026, for roughly $6.6 million at prices between $33.6438 and $35.2733.
  • Walker exercised options for 170,000 shares at $1.50 per share on the same day, costing $255,000, and now holds 250,000 shares directly.
  • Nano Nuclear is valued at $1.62 billion, remains unprofitable over the trailing twelve months, trades with high volatility, and reports a strong current ratio of 53.48 according to InvestingPro.

Transactions and immediate market reaction

On January 28, 2026, Nano Nuclear Energy Inc.'s Chief Executive Officer, James John Walker, sold a total of 204,990 shares of the company's common stock for about $6.6 million. The sales were executed within a price corridor of $33.6438 to $35.2733 per share. Following those sales, the stock price has moved down to $29.40, a drop of 15.4% across the most recent week.

Options exercise and direct ownership

The same day Walker completed the stock sales he also exercised options to acquire 170,000 shares at an exercise price of $1.50 per share, representing a $255,000 outlay. After these transactions, Walker is recorded as owning 250,000 shares directly.

Financial position and profitability

InvestingPro data cited in company analysis shows Nano Nuclear Energy's current share price sits within a 52-week range of $17.26 to $60.87 and indicates the shares typically exhibit high price volatility. The firm's market capitalization was reported at $1.62 billion. Despite that market value, InvestingPro's analysis shows the company was not profitable over the trailing twelve months and that analysts do not expect it to reach profitability this year. At the same time, liquidity metrics appear robust - the company posted a current ratio of 53.48, suggesting more cash than debt on the balance sheet per InvestingPro.

Operational and commercial developments

Nano Nuclear has continued to advance its technology and partnerships alongside these governance moves. The company appointed Michael Montecalvo as Licensing Director; Montecalvo brings more than 30 years of experience in the nuclear industry, including roles at the U.S. Nuclear Regulatory Commission. In coverage developments, Texas Capital Securities began coverage of the company with a Buy rating, highlighting the KRONOS micro modular reactor as a distinguishing asset in the advanced nuclear space.

On the technology front, Nano Nuclear issued a Request for Information to identify potential partners to develop its LOKI microreactor for space applications, signaling interest in nontraditional deployment environments. Internationally, the company signed a Memorandum of Understanding with South Korea's DS Dansuk Co., Ltd. to cooperate on deploying micro modular reactor systems in South Korea. Under the arrangement, DS Dansuk will assist with site identification and regulatory engagement as part of efforts to position the company within South Korea's clean energy initiatives.

Context and next steps

The combination of an insider sale, a concurrent options exercise, a sliding share price, large implied volatility, and forward commercial activity creates a multi-faceted picture for investors. The company remains valued at over $1.6 billion by market capitalization while operating at a loss on a trailing twelve-month basis and preserving substantial liquidity on its balance sheet. Recent personnel, partnership, and coverage moves indicate continued strategic activity around the firm’s microreactor platforms.


Disclosure

The article reports on transactions and company updates based on the factual items provided. No additional commentary or investment advice is offered.

Risks

  • Share-price volatility and a recent 15.4% one-week decline may increase short-term market risk for equity holders - impacts public equity markets and investor sentiment in the energy sector.
  • The company is not profitable on a trailing twelve-month basis and is not expected to be profitable this year - financial performance risk affecting valuation and investor returns.
  • Strategic initiatives such as international partnerships and space-focused reactor development carry execution and regulatory risks - relevant to the clean energy and aerospace technology sectors.

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