Form 4: Aeluma Director Sells 85,000 Shares Under 10b5-1 Plan

Aeluma, Inc. Director and 10% owner Mark N. Tompkins sold 85,000 shares of common stock over three days in December 2025 under a Rule 10b5-1 plan.

Summary

• Mark N. Tompkins, a Director and 10% owner of Aeluma, Inc. (ALMU), sold a total of 85,000 shares of common stock.
• The sales occurred on December 18, 19, and 22, 2025.
• The transactions were executed under a Rule 10b5-1 trading plan, indicating they were pre-scheduled.
• On December 18, 2025, 20,000 shares were sold at a weighted average price of $14.37 per share, with prices ranging from $14.18 to $14.68.
• On December 19, 2025, 30,000 shares were sold at a weighted average price of $14.70 per share, with prices ranging from $14.44 to $15.27.
• On December 22, 2025, 35,000 shares were sold at a weighted average price of $14.83 per share, with prices ranging from $14.66 to $15.09.
• Following these transactions, Tompkins beneficially owns 2,084,988 shares of Aeluma, Inc. common stock.

Sentiment

Score: 4

Explanation: The sale of a significant number of shares by a director and 10% owner is generally viewed negatively, although the presence of a Rule 10b5-1 plan mitigates some of the immediate concerns about opportunistic selling.

Positives

• The sales were conducted under a Rule 10b5-1 plan, which suggests the transactions were pre-scheduled and not necessarily based on new, non-public information, mitigating concerns about opportunistic selling.

Negatives

• A Director and 10% owner selling a significant number of shares (85,000) can be perceived negatively by the market, potentially signaling a lack of confidence or a need for liquidity.

Risks

• Potential negative market reaction to insider selling, which could put downward pressure on the stock price.
• Reduced alignment of interests between the insider and other shareholders due to a decrease in personal holdings.

Future Outlook

NA

Industry Context

Insider selling, even when executed under a Rule 10b5-1 plan, is often scrutinized by investors as it can sometimes precede periods of underperformance or reflect an insider's personal financial planning. The market generally views significant insider sales with caution, although the pre-arranged nature can temper immediate negative interpretations.

Stakeholder Impact

• Shareholders may perceive the insider selling as a lack of confidence in the company's future prospects, potentially leading to decreased investor sentiment and downward pressure on the stock price.

Key Dates

Recommendation

While insider selling by a director and 10% owner is typically a negative signal, the execution under a Rule 10b5-1 plan suggests these were pre-scheduled transactions rather than a reaction to new, adverse information. Investors should monitor future filings and company performance, but a 'hold' recommendation is appropriate given the pre-planned nature of the sales, avoiding an immediate 'sell' unless further negative catalysts emerge.

Keywords

Aeluma Inc, ALMU, Mark N. Tompkins, Insider Selling, Form 4, SEC Filing, Stock Sale, Director, 10% Owner, Rule 10b5-1