Form 4: Aeluma CEO Sells 50,000 Shares Under 10b5-1 Plan

Aeluma, Inc. CEO Jonathan Klamkin reported the sale of 50,000 shares of common stock on March 4, 2026, executed under a pre-arranged Rule 10b5-1 trading plan.

Summary

• Jonathan Klamkin, CEO, Director, and 10% Owner of Aeluma, Inc. (ALMU), sold a total of 50,000 shares of common stock on March 4, 2026.
• The sales were executed under a Rule 10b5-1 trading plan adopted on December 3, 2025.
• 28,206 shares were sold at a weighted average price of $17.7746 per share, with prices ranging from $17.11 to $18.10.
• An additional 21,794 shares were sold at a weighted average price of $18.411 per share, with prices ranging from $18.11 to $19.03.
• Following these transactions, Klamkin beneficially owns 1,429,398 shares of Aeluma, Inc. common stock.
• A Power of Attorney was granted by Jonathan Klamkin on February 2, 2026, authorizing several individuals, including Joshua L. Colburn, to file SEC reports on his behalf.

Sentiment

Score: 4

Explanation: StockSavvy.ai views this as a moderately negative signal. While the 10b5-1 plan mitigates the immediate implication of opportunistic selling, a substantial divestment by a key insider like the CEO can still raise questions about long-term confidence or valuation.

Positives

• The sales were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a planned divestment rather than an immediate reaction to new information.

Negatives

• A significant sale of 50,000 shares by the CEO, Director, and 10% owner could be perceived negatively by investors, potentially signaling a desire to diversify holdings or a lack of confidence.

Risks

• Potential negative investor sentiment due to insider selling, even if pre-planned, which could put downward pressure on the stock price.

Future Outlook

The filing does not contain any forward-looking statements or guidance regarding the company's future performance or strategic direction.

Industry Context

StockSavvy.ai notes that insider sales, even under a 10b5-1 plan, are routinely monitored by investors for potential signals regarding management's perception of future company prospects. While a 10b5-1 plan suggests a pre-determined, non-discretionary sale, the sheer volume of shares sold by a key executive like the CEO, Director, and 10% owner of Aeluma, Inc. could still be interpreted as a move to diversify or realize gains, potentially influencing market sentiment, especially if other insiders are also selling or if the company's stock has recently seen significant appreciation.

Corporate Governance

Stakeholder Impact

• Shareholders: May interpret the insider sale as a negative signal, potentially impacting stock price or confidence.

Next Steps

• The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder.

Key Dates

Recommendation

While the insider sale by the CEO is a notable event, the fact that it was executed under a pre-arranged 10b5-1 plan suggests it's a planned diversification or liquidity event rather than a reaction to new negative information. Without additional context on the company's performance or other market factors, a 'hold' recommendation is appropriate, advising investors to monitor future insider activity and company developments closely before making further investment decisions.

Keywords

Aeluma Inc, ALMU, Jonathan Klamkin, Insider Trading, Form 4, Stock Sale, 10b5-1 Plan, CEO, Director, 10% Owner