ALMU · Aeluma, Inc.
Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.
Insider Sentiment Score
Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.
| Date | Insider | Role | Type | Security | Shares |
|---|---|---|---|---|---|
| 2026-07-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↓
|
Common Stock
(I)
|
20,000 |
| 2026-07-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. |
Common Stock
|
100 |
| 2026-07-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↑
|
Common Stock
|
20,000 |
| 2026-07-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 19,900 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on July 1, 2026 with sale prices ranging from $20.54 to $21.52 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
19,900 |
| 2026-06-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 8,200 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on June 1, 2026 with sale prices ranging from $25.79 to $26.71 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
8,200 |
| 2026-06-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↓
|
Common Stock
(I)
|
20,000 |
| 2026-06-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 1,400 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on June 1, 2026 with sale prices ranging from $22.74 to $23.70 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
1,400 |
| 2026-06-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↑
|
Common Stock
|
20,000 |
| 2026-06-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 1,600 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on June 1, 2026 with sale prices ranging from $24.76 to $25.73 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
1,600 |
| 2026-06-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 7,900 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on June 1, 2026 with sale prices ranging from $23.75 to $24.74 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
7,900 |
| 2026-06-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 900 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on June 1, 2026 with sale prices ranging from $21.64 to $22.62 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
900 |
| 2026-05-20 | Denbaars Steven |
Director |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2025. The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $20.907 to $21.63, inclusive. |
Common Stock
|
942 |
| 2026-05-20 | Denbaars Steven |
Director |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2025. The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $19.89 to $20.8895, inclusive. |
Common Stock
|
11,558 |
| 2026-05-19 | Denbaars Steven |
Director |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2025. Restricted stock units scheduled to vest with respect to approximately 1/12 of the shares on December 31, 2025, 1/4 of the shares on March 31, June 30, and September 30, 2026, and 1/6 of the shares on November 30, 2026. The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $19.02 to $20.01, inclusive. |
Common Stock
|
7,415 |
| 2026-05-19 | Denbaars Steven |
Director |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2025. The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $20.0244 to $20.9963, inclusive. |
Common Stock
|
5,085 |
| 2026-05-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 15,024 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on May 1, 2026 with sale prices ranging from $24.62 to $25.61 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
15,024 |
| 2026-05-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↑
|
Common Stock
|
20,000 |
| 2026-05-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↓
|
Common Stock
(I)
|
20,000 |
| 2026-05-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 4,300 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on May 1, 2026 with sale prices ranging from $23.62 to $24.61 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
4,300 |
| 2026-05-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 676 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on May 1, 2026 with sale prices ranging from $25.62 to $26.02 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Due to interim sales transactions previously reported on March 6, 2026 and April 3, 2026, amounts of securities beneficially owned following reported transactions may not foot. |
Common Stock
|
676 |
| 2026-04-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 20,000 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on April 1, 2026 with sale prices ranging from $12.82 to $13.325 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
20,000 |
| 2026-04-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↓
|
Common Stock
(I)
|
20,000 |
| 2026-04-01 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↑
|
Common Stock
|
20,000 |
| 2026-03-04 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↑
|
Common Stock
|
50,000 |
| 2026-03-04 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 28,206 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on March 4, 2026 with sale prices ranging from $17.11 to $18.10 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
28,206 |
| 2026-03-04 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↓
|
Common Stock
(I)
|
50,000 |
| 2026-03-04 | Klamkin Jonathan |
Director, Chief Executive Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025. Reflects the weighted average price of 21,794 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on March 4, 2026 with sale prices ranging from $18.11 to $19.03 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
Common Stock
|
21,794 |
| 2026-02-26 | Denbaars Steven |
Director |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2025. The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $15.475 to $16.41, inclusive. |
Common Stock
|
12,500 |
| 2026-02-25 | Denbaars Steven |
Director |
Sell↓
Filing footnotes — Common Stock (Direct)
Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2025. The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $17.11 to $17.97, inclusive. |
Common Stock
|
12,500 |
| 2026-02-04 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $14.94 to $15.50, inclusive. |
Common Stock
|
5,956 |
| 2026-02-04 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $13.94 to $14.91, inclusive. |
Common Stock
|
28,544 |
| 2026-02-02 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $15.34 to $16.03, inclusive. |
Common Stock
|
37,500 |
| 2026-01-30 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $15.45 to $16.44, inclusive. |
Common Stock
|
24,092 |
| 2026-01-30 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $16.45 to $17.33, inclusive. |
Common Stock
|
908 |
| 2026-01-29 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $16.08 to $17.07, inclusive. |
Common Stock
|
27,297 |
| 2026-01-29 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $17.08 to $17.22, inclusive. |
Common Stock
|
5,203 |
| 2026-01-22 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $18.67 to $19.02, inclusive. |
Common Stock
|
962 |
| 2026-01-22 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $17.65 to $18.50, inclusive. |
Common Stock
|
29,038 |
| 2026-01-21 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $18.00 to $18.98, inclusive. |
Common Stock
|
30,328 |
| 2026-01-21 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $18.99 to $19.97, inclusive. |
Common Stock
|
12,947 |
| 2026-01-21 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $20.00 to $20.99, inclusive. |
Common Stock
|
1,715 |
| 2026-01-21 | Tompkins Mark N. |
Insider |
Sell↓
|
Common Stock
|
10 |
| 2026-01-20 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $21.45 to $21.68, inclusive. |
Common Stock
|
888 |
| 2026-01-20 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $20.41 to $21.40, inclusive. |
Common Stock
|
29,112 |
| 2025-12-29 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↓
Filing footnotes — Common Stock (Direct)
In December 2025, the reporting person transferred 1,476,995 shares to a family trust for estate planning purposes. The reporting person and his spouse are the sole trustees. |
Common Stock
|
1,126,995 |
| 2025-12-29 | Klamkin Jonathan |
Director, Chief Executive Officer |
Gift↑
Filing footnotes — Common Stock (Indirect)
In December 2025, the reporting person transferred 1,476,995 shares to a family trust for estate planning purposes. The reporting person and his spouse are the sole trustees. |
Common Stock
(I)
|
1,126,995 |
| 2025-12-26 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $17.28 to $18.26, inclusive. |
Common Stock
|
20,368 |
| 2025-12-26 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $16.26 to $17.25, inclusive. |
Common Stock
|
6,970 |
| 2025-12-26 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $18.28 to $18.68, inclusive. |
Common Stock
|
2,662 |
| 2025-12-24 | Tompkins Mark N. |
Insider |
Sell↓
Filing footnotes — Common Stock (Direct)
The price reported in Column 4 represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $15.93 to $16.26, inclusive. |
Common Stock
|
15,000 |