Aeluma, Inc. (ALMU) Insider Trading
Directors, officers and holders of more than 10% of ALMU report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 141 transactions on file: 0 with code P, 27 with code S and 23 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 12, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 100,000 | $10.53 | $1,053,430 |
| Sep 30, 2026 | Stewart Christopher P. | Chief Financial Officer | F Tax Payment | 5,697 | $12.36 | $70,415 |
| Sep 21, 2026 | Klamkin Jonathan | Chief Executive Officer | A Award | 12,675 | Not measured | Not measured |
| Sep 21, 2026 | Byron Michael | Director | M Exercise | 25,000 | Not measured | Not measured |
| Sep 21, 2026 | Stewart Christopher P. | Chief Financial Officer | F Tax Payment | 1,450 | $13.61 | $19,735 |
| Sep 21, 2026 | Klamkin Jonathan | Chief Executive Officer | A Award | 75,135 | Not measured | Not measured |
| Sep 21, 2026 | Stewart Christopher P. | Chief Financial Officer | A Award | 37,568 | Not measured | Not measured |
| Sep 21, 2026 | Klamkin Jonathan | Chief Executive Officer | F Tax Payment | 4,547 | $13.61 | $61,885 |
| Sep 21, 2026 | Byron Michael | Director | M Exercise | 25,000 | $5.93 | $148,250 |
| Sep 21, 2026 | Stewart Christopher P. | Chief Financial Officer | A Award | 15,886 | Not measured | Not measured |
| Sep 21, 2026 | Klamkin Jonathan | Chief Executive Officer | A Award | 31,771 | Not measured | Not measured |
| Sep 21, 2026 | Stewart Christopher P. | Chief Financial Officer | A Award | 4,042 | Not measured | Not measured |
| Sep 21, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 100,000 | $13.35 | $1,335,320 |
| Aug 27, 2026 | Denbaars Steven | Director | S Sale | 12,500 | $13.82 | $172,698 |
| Aug 26, 2026 | Denbaars Steven | Director | S Sale | 12,500 | $13.84 | $173,044 |
| Aug 3, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 4,190 | $16.29 | $68,263 |
| Aug 3, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 20,000 | Not measured | Not measured |
| Aug 3, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 15,810 | $16.85 | $266,378 |
| Aug 3, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 20,000 | Not measured | Not measured |
| Jul 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 19,900 | $21.08 | $419,512 |
| Jul 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 100 | $21.56 | $2,156 |
| Jul 1, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 20,000 | Not measured | Not measured |
| Jul 1, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 20,000 | Not measured | Not measured |
| Jun 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 1,400 | $23.32 | $32,649 |
| Jun 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 7,900 | $24.39 | $192,642 |
| Jun 1, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 20,000 | Not measured | Not measured |
| Jun 1, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 20,000 | Not measured | Not measured |
| Jun 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 900 | $22.19 | $19,968 |
| Jun 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 1,600 | $25.12 | $40,190 |
| Jun 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 8,200 | $26.25 | $215,211 |
| May 20, 2026 | Denbaars Steven | Director | S Sale | 942 | $21.30 | $20,064 |
| May 20, 2026 | Denbaars Steven | Director | S Sale | 11,558 | $20.40 | $235,734 |
| May 19, 2026 | Denbaars Steven | Director | S Sale | 7,415 | $19.56 | $145,026 |
| May 19, 2026 | Denbaars Steven | Director | S Sale | 5,085 | $20.61 | $104,807 |
| May 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 676 | $25.71 | $17,382 |
| May 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 4,300 | $24.20 | $104,057 |
| May 1, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 20,000 | Not measured | Not measured |
| May 1, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 20,000 | Not measured | Not measured |
| May 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 15,024 | $25.15 | $377,834 |
| Apr 1, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 20,000 | Not measured | Not measured |
| Apr 1, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 20,000 | Not measured | Not measured |
| Apr 1, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 20,000 | $13.10 | $261,950 |
| Mar 4, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 50,000 | Not measured | Not measured |
| Mar 4, 2026 | Klamkin Jonathan | Chief Executive Officer | G Gift | 50,000 | Not measured | Not measured |
| Mar 4, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 21,794 | $18.41 | $401,249 |
| Mar 4, 2026 | Klamkin Jonathan | Chief Executive Officer | S Sale | 28,206 | $17.77 | $501,350 |
| Feb 26, 2026 | Denbaars Steven | Director | S Sale | 12,500 | $15.85 | $198,094 |
| Feb 25, 2026 | Denbaars Steven | Director | S Sale | 12,500 | $17.58 | $219,766 |
| Feb 4, 2026 | Tompkins Mark N. | 10% Owner | S Sale | 28,544 | $14.63 | $417,599 |
| Feb 4, 2026 | Tompkins Mark N. | 10% Owner | S Sale | 5,956 | $15.12 | $90,055 |
The full Form 4 history is on the ALMU company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.