Insider Selling Continues at Aeluma Inc.
A recent filing (Form 4) shows that Mark N. Tompkins sold 105,000 shares of Aeluma Inc. (ALMU) on January 29, 2026. The shares were disposed of at weighted averages between $16.08 and $17.22, leaving Tompkins with 1,887,488 shares—just under 3 % of the outstanding equity. The transaction was executed the same day that the stock closed at $15.79, a level that sits roughly midway between the 52‑week high of $25.883 and the low of $5.69.
The sale is not an isolated event. Tompkins has been divesting a steady stream of shares since late 2025, with cumulative sales exceeding 200,000 shares in the past three months alone. His most recent sellings have been clustered around the $16–$17 range, matching the current market price. This pattern suggests a systematic portfolio rebalancing rather than a reaction to any sudden corporate development. For investors, the volume of shares sold—over 100,000 on a single day—signals a potentially bearish sentiment from a long‑time insider, especially when combined with a negative price‑earnings ratio of –57.8 that underscores the company’s ongoing losses.
What Does This Mean for Investors?
From a valuation perspective, Aeluma’s market cap of roughly $282 million and a price‑to‑book ratio of 7.5 indicate that the market is willing to pay a premium over book value despite the lack of earnings. The insider sale, however, may prompt a short‑term price correction. Historically, insider sell‑offs have been followed by a 1–3 % dip in the immediate week, though the effect can be muted if the broader market trend is bearish—as it is today with a weekly decline of 1.31 % and a monthly loss of 10.96 %.
Long‑term investors should focus on whether the divestments are driven by personal liquidity needs or a fundamental reassessment of Aeluma’s prospects. The company’s technology focus in the information‑technology sector could still offer upside if it can translate innovation into revenue growth, but the current negative earnings and high valuation multiples call for caution. A close watch on future insider filings, especially any large buy‑backs or acquisitions, will be critical to gauge management’s confidence in the business.
Profile of Mark N. Tompkins
Tompkins has been a recurring participant in Aeluma’s insider market for the past eighteen months. His trade history shows a pattern of frequent, relatively small sales—typically 10,000 to 30,000 shares—executed at or near the market price. The aggregate volume of over 1 million shares sold since December 2025 reflects a gradual divestment strategy rather than a panic sale. In terms of timing, his transactions are often clustered at month‑end dates, suggesting a systematic approach aligned with quarterly reporting or liquidity planning.
Notably, Tompkins’ shareholdings have never exceeded 5 % of the company, and he does not hold any executive title. His profile aligns with a long‑term investor or a secondary shareholder rather than a controlling stakeholder. This context is important because insider activity from non‑executive shareholders is generally less predictive of company performance than that of CEOs or CFOs.
Outlook for Aeluma Inc.
The market is currently pricing Aeluma at a value that reflects both optimism about its technology and skepticism about its profitability. Insider sell‑offs such as Tompkins’ are a reminder that even passive investors can be uneasy. If the company can deliver on its growth promises—perhaps through new product launches or strategic partnerships—insider confidence may rebound, potentially stabilizing the share price. Until then, investors should monitor both the company’s financial statements for signs of turnaround and any future insider transactions that could signal shifting sentiment.
| Date | Owner | Transaction Type | Shares | Price per Share | Security |
|---|---|---|---|---|---|
| 2026-01-29 | Tompkins Mark N. () | Sell | 27,297.00 | 16.75 | Common Stock |
| 2026-01-29 | Tompkins Mark N. () | Sell | 5,203.00 | 17.16 | Common Stock |
| 2026-01-30 | Tompkins Mark N. () | Sell | 24,092.00 | 15.88 | Common Stock |
| 2026-01-30 | Tompkins Mark N. () | Sell | 908.00 | 16.79 | Common Stock |
| 2026-02-02 | Tompkins Mark N. () | Sell | 37,500.00 | 15.74 | Common Stock |




