ALMUAeluma, Inc.
- Market cap
- $133.47M
- as of 2026-10-23
- Latest close
- $6.91
- as of 2026-10-23
- Sector
- Technology
- as of 2026-10-24
- Industry
- Semiconductors
- as of 2026-10-24
Cluster
No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).
Form 4 historysince 2025-03-31
Dashed line = amended filing (Form 4/A)
| Insider | Traded | Filed | Type | Shares | Price | Value | Owned after | 10b5-1 plan | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Klamkin JonathanChief Executive Officer | Oct 12 | Oct 14 | S | 100,000 | $10.53 | Sale −$1,053,430 | 1,126,995 | Yes | Form 4 |
| Stewart Christopher P.Chief Financial Officer | Sep 30 | Oct 1 | F | 5,697 | $12.36 | $70,415 | 67,781 | No | Form 4 |
| Byron Michael | Sep 21 | Sep 23 | M | 25,000 | $5.93 | $148,250 | 38,343 | No | Form 4 |
| Byron Michael | Sep 21 | Sep 23 | M · derivative | 25,000 | $5.93 | $148,250 | 20,833 | No | Form 4 |
| Stewart Christopher P.Chief Financial Officer | Sep 21 | Sep 23 | A | 15,886 | $0.00 | $0 | 15,886 | No | Form 4 |
| Stewart Christopher P.Chief Financial Officer | Sep 21 | Sep 23 | A | 4,042 | $0.00 | $0 | 19,928 | No | Form 4 |
| Stewart Christopher P.Chief Financial Officer | Sep 21 | Sep 23 | F | 1,450 | $13.61 | $19,735 | 18,478 | No | Form 4 |
| Stewart Christopher P.Chief Financial Officer | Sep 21 | Sep 23 | A · derivative | 37,568 | $13.61 | $511,300 | 37,568 | No | Form 4 |
| Klamkin JonathanChief Executive Officer | Sep 21 | Sep 23 | S | 100,000 | $13.35 | Sale −$1,335,000 | 1,226,995 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Sep 21 | Sep 23 | A | 31,771 | $0.00 | $0 | 34,174 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Sep 21 | Sep 23 | A | 12,675 | $0.00 | $0 | 46,849 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Sep 21 | Sep 23 | F | 4,547 | $13.61 | $61,885 | 42,302 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Sep 21 | Sep 23 | A · derivative | 75,135 | $13.61 | $1,022,587 | 75,135 | Yes | Form 4 |
| Denbaars Steven | Aug 27 | Aug 284/A | S | 12,500 | $13.82 | Sale −$172,750 | 345,209 | Yes | Form 4/A |
| Denbaars Steven | Aug 26 | Aug 284/A | S | 12,500 | $13.84 | Sale −$173,000 | 357,709 | Yes | Form 4/A |
| Klamkin JonathanChief Executive Officer | Aug 3 | Aug 5 | G | 20,000 | $0.00 | $0 | 1,326,995 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Aug 3 | Aug 5 | G | 20,000 | $0.00 | $0 | 22,403 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Aug 3 | Aug 5 | S | 4,190 | $16.29 | Sale −$68,255 | 18,213 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Aug 3 | Aug 5 | S | 15,810 | $16.85 | Sale −$266,399 | 2,403 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jul 1 | Jul 2 | G | 20,000 | $0.00 | $0 | 1,346,995 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jul 1 | Jul 2 | G | 20,000 | $0.00 | $0 | 22,403 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jul 1 | Jul 2 | S | 19,900 | $21.08 | Sale −$419,492 | 2,503 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jul 1 | Jul 2 | S | 100 | $21.56 | Sale −$2,156 | 2,403 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jun 1 | Jun 3 | G | 20,000 | $0.00 | $0 | 1,366,995 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jun 1 | Jun 3 | G | 20,000 | $0.00 | $0 | 22,403 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jun 1 | Jun 3 | S | 900 | $22.19 | Sale −$19,971 | 21,503 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jun 1 | Jun 3 | S | 1,400 | $23.32 | Sale −$32,648 | 20,103 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jun 1 | Jun 3 | S | 7,900 | $24.39 | Sale −$192,681 | 12,203 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jun 1 | Jun 3 | S | 1,600 | $25.12 | Sale −$40,192 | 10,603 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Jun 1 | Jun 3 | S | 8,200 | $26.25 | Sale −$215,250 | 2,403 | Yes | Form 4 |
| Denbaars Steven | May 20 | May 21 | S | 11,558 | $20.40 | Sale −$235,783 | 371,151 | Yes | Form 4 |
| Denbaars Steven | May 20 | May 21 | S | 942 | $21.30 | Sale −$20,065 | 370,209 | Yes | Form 4 |
| Denbaars Steven | May 19 | May 21 | S | 7,415 | $19.56 | Sale −$145,037 | 387,794 | Yes | Form 4 |
| Denbaars Steven | May 19 | May 21 | S | 5,085 | $20.61 | Sale −$104,802 | 382,709 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | May 1 | May 5 | G | 20,000 | $0.00 | $0 | 1,386,995 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | May 1 | May 5 | G | 20,000 | $0.00 | $0 | 22,403 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | May 1 | May 5 | S | 4,300 | $24.20 | Sale −$104,060 | 18,103 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | May 1 | May 5 | S | 15,024 | $25.15 | Sale −$377,854 | 3,079 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | May 1 | May 5 | S | 676 | $25.71 | Sale −$17,380 | 2,403 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Apr 1 | May 5 | G | 20,000 | $0.00 | $0 | 1,406,995 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Apr 1 | May 5 | G | 20,000 | $0.00 | $0 | 22,403 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Mar 4 | May 5 | G | 50,000 | $0.00 | $0 | 1,426,995 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Mar 4 | May 5 | G | 50,000 | $0.00 | $0 | 52,403 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Dec 29, 2025 | May 5 | G | 1,126,995 | $0.00 | $0 | 2,403 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Dec 29, 2025 | May 5 | G | 1,126,995 | $0.00 | $0 | 1,476,995 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Dec 19, 2025 | May 5 | G | 350,000 | $0.00 | $0 | 1,129,398 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Dec 19, 2025 | May 5 | G | 350,000 | $0.00 | $0 | 350,000 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Apr 1 | Apr 3 | S | 20,000 | $13.10 | Sale −$262,000 | 1,409,398 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Mar 4 | Mar 5 | S | 28,206 | $17.77 | Sale −$501,221 | 1,451,192 | Yes | Form 4 |
| Klamkin JonathanChief Executive Officer | Mar 4 | Mar 5 | S | 21,794 | $18.41 | Sale −$401,228 | 1,429,398 | Yes | Form 4 |
| Ensley Craig H | Dec 3, 2025 | Mar 2 | A | 10,633 | $0.00 | $0 | 27,300 | No | Form 4 |
| Byron Michael | Dec 3, 2025 | Mar 2 | A | 13,343 | $0.00 | $0 | 13,343 | No | Form 4 |
| Paglia John Kenneth | Dec 3, 2025 | Mar 2 | A | 10,861 | $0.00 | $0 | 23,361 | No | Form 4 |
| Denbaars Steven | Dec 3, 2025 | Mar 2 | A | 10,121 | $0.00 | $0 | 395,209 | Yes | Form 4 |
| Byron Michael | Sep 1, 2025 | Mar 2 | A · derivative | 3,653 | $18.27 | $66,740 | 3,653 | No | Form 4 |
| Denbaars Steven | Feb 26 | Feb 27 | S | 12,500 | $15.85 | Sale −$198,125 | 385,088 | Yes | Form 4 |
| Denbaars Steven | Feb 25 | Feb 27 | S | 12,500 | $17.58 | Sale −$219,750 | 397,588 | Yes | Form 4 |
| Tompkins Mark N. | Feb 4 | Feb 5 | S | 28,544 | $14.63 | Sale −$417,599 | 1,796,444 | No | Form 4 |
| Tompkins Mark N. | Feb 4 | Feb 5 | S | 5,956 | $15.12 | Sale −$90,055 | 1,790,488 | No | Form 4 |
| Tompkins Mark N. | Feb 2 | Feb 2 | S | 37,500 | $15.74 | Sale −$590,250 | 1,824,988 | No | Form 4 |
| Tompkins Mark N. | Jan 30 | Feb 2 | S | 24,092 | $15.88 | Sale −$382,581 | 1,863,396 | No | Form 4 |
| Tompkins Mark N. | Jan 30 | Feb 2 | S | 908 | $16.79 | Sale −$15,245 | 1,862,488 | No | Form 4 |
| Tompkins Mark N. | Jan 29 | Feb 2 | S | 27,297 | $16.75 | Sale −$457,225 | 1,892,691 | No | Form 4 |
| Tompkins Mark N. | Jan 29 | Feb 2 | S | 5,203 | $17.16 | Sale −$89,283 | 1,887,488 | No | Form 4 |
| Tompkins Mark N. | Jan 22 | Jan 22 | S | 29,038 | $18.05 | Sale −$524,136 | 1,920,950 | No | Form 4 |
| Tompkins Mark N. | Jan 22 | Jan 22 | S | 962 | $18.81 | Sale −$18,095 | 1,919,988 | No | Form 4 |
| Tompkins Mark N. | Jan 21 | Jan 22 | S | 30,328 | $18.52 | Sale −$561,675 | 1,964,660 | No | Form 4 |
| Tompkins Mark N. | Jan 21 | Jan 22 | S | 12,947 | $19.30 | Sale −$249,877 | 1,951,713 | No | Form 4 |
| Tompkins Mark N. | Jan 21 | Jan 22 | S | 1,715 | $20.44 | Sale −$35,055 | 1,949,998 | No | Form 4 |
| Tompkins Mark N. | Jan 21 | Jan 22 | S | 10 | $21.24 | Sale −$212 | 1,949,988 | No | Form 4 |
| Tompkins Mark N. | Jan 20 | Jan 22 | S | 29,112 | $20.66 | Sale −$601,454 | 1,995,876 | No | Form 4 |
| Tompkins Mark N. | Jan 20 | Jan 22 | S | 888 | $21.58 | Sale −$19,163 | 1,994,988 | No | Form 4 |
| McCarthy Lee | Feb 17, 2023 | Jan 2 | S | 649,570 | $0.01 | Sale −$6,496 | 977,425 | No | Form 4 |
| Tompkins Mark N. | Dec 26, 2025 | Dec 29, 2025 | S | 6,970 | $16.91 | Sale −$117,863 | 2,048,018 | No | Form 4 |
| Tompkins Mark N. | Dec 26, 2025 | Dec 29, 2025 | S | 20,368 | $18.01 | Sale −$366,828 | 2,027,650 | No | Form 4 |
| Tompkins Mark N. | Dec 26, 2025 | Dec 29, 2025 | S | 2,662 | $18.39 | Sale −$48,954 | 2,024,988 | No | Form 4 |
| Tompkins Mark N. | Dec 24, 2025 | Dec 29, 2025 | S | 15,000 | $16.05 | Sale −$240,750 | 2,054,988 | No | Form 4 |
| Tompkins Mark N. | Dec 23, 2025 | Dec 29, 2025 | S | 15,000 | $14.87 | Sale −$223,050 | 2,069,988 | No | Form 4 |
| Tompkins Mark N. | Dec 22, 2025 | Dec 22, 2025 | S | 35,000 | $14.83 | Sale −$519,050 | 2,084,988 | No | Form 4 |
| Tompkins Mark N. | Dec 19, 2025 | Dec 22, 2025 | S | 30,000 | $14.70 | Sale −$441,000 | 2,119,988 | No | Form 4 |
| Tompkins Mark N. | Dec 18, 2025 | Dec 22, 2025 | S | 20,000 | $14.37 | Sale −$287,400 | 2,149,988 | No | Form 4 |
| Tompkins Mark N. | Dec 10, 2025 | Dec 11, 2025 | S | 20,000 | $17.49 | Sale −$349,800 | 2,169,988 | No | Form 4 |
| Tompkins Mark N. | Dec 9, 2025 | Dec 11, 2025 | S | 10,861 | $16.39 | Sale −$178,012 | 2,209,127 | No | Form 4 |
| Tompkins Mark N. | Dec 9, 2025 | Dec 11, 2025 | S | 19,139 | $17.06 | Sale −$326,511 | 2,189,988 | No | Form 4 |
| Tompkins Mark N. | Dec 8, 2025 | Dec 9, 2025 | S | 39,012 | $16.04 | Sale −$625,752 | 2,220,976 | No | Form 4 |
| Tompkins Mark N. | Dec 8, 2025 | Dec 9, 2025 | S | 988 | $16.87 | Sale −$16,668 | 2,219,988 | No | Form 4 |
| Tompkins Mark N. | Dec 5, 2025 | Dec 9, 2025 | S | 28,390 | $16.12 | Sale −$457,647 | 2,261,598 | No | Form 4 |
| Tompkins Mark N. | Dec 5, 2025 | Dec 9, 2025 | S | 1,610 | $16.49 | Sale −$26,549 | 2,259,988 | No | Form 4 |
| Tompkins Mark N. | Dec 4, 2025 | Dec 9, 2025 | S | 11,500 | $15.49 | Sale −$178,135 | 2,308,488 | No | Form 4 |
| Tompkins Mark N. | Dec 4, 2025 | Dec 9, 2025 | S | 18,500 | $16.37 | Sale −$302,845 | 2,289,988 | No | Form 4 |
| Tompkins Mark N. | Oct 20, 2025 | Oct 21, 2025 | S | 37,500 | $16.39 | Sale −$614,625 | 2,319,988 | No | Form 4 |
| Tompkins Mark N. | Oct 17, 2025 | Oct 21, 2025 | S | 33,344 | $16.75 | Sale −$558,512 | 2,364,144 | No | Form 4 |
| Tompkins Mark N. | Oct 17, 2025 | Oct 21, 2025 | S | 5,913 | $17.77 | Sale −$105,074 | 2,358,231 | No | Form 4 |
| Tompkins Mark N. | Oct 17, 2025 | Oct 21, 2025 | S | 743 | $18.45 | Sale −$13,708 | 2,357,488 | No | Form 4 |
| Tompkins Mark N. | Oct 16, 2025 | Oct 17, 2025 | S | 17,540 | $18.97 | Sale −$332,734 | 2,404,948 | No | Form 4 |
| Tompkins Mark N. | Oct 16, 2025 | Oct 17, 2025 | S | 6,650 | $19.96 | Sale −$132,734 | 2,398,298 | No | Form 4 |
| Tompkins Mark N. | Oct 16, 2025 | Oct 17, 2025 | S | 810 | $20.72 | Sale −$16,783 | 2,397,488 | No | Form 4 |
| Tompkins Mark N. | Oct 15, 2025 | Oct 17, 2025 | S | 24,147 | $20.11 | Sale −$485,596 | 2,438,341 | No | Form 4 |
| Tompkins Mark N. | Oct 15, 2025 | Oct 17, 2025 | S | 15,853 | $21.31 | Sale −$337,827 | 2,422,488 | No | Form 4 |
| Tompkins Mark N. | Oct 14, 2025 | Oct 14, 2025 | S | 36,855 | $19.86 | Sale −$731,940 | 2,462,488 | No | Form 4 |
| Tompkins Mark N. | Oct 13, 2025 | Oct 14, 2025 | S | 35,031 | $16.97 | Sale −$594,476 | 2,499,643 | No | Form 4 |
| Tompkins Mark N. | Oct 13, 2025 | Oct 14, 2025 | S | 300 | $17.57 | Sale −$5,271 | 2,499,343 | No | Form 4 |
| Tompkins Mark N. | Oct 10, 2025 | Oct 14, 2025 | S | 30,587 | $16.60 | Sale −$507,744 | 2,539,087 | No | Form 4 |
| Tompkins Mark N. | Oct 10, 2025 | Oct 14, 2025 | S | 4,413 | $17.16 | Sale −$75,727 | 2,534,674 | No | Form 4 |
| Tompkins Mark N. | Oct 9, 2025 | Oct 9, 2025 | S | 35,908 | $16.54 | Sale −$593,918 | 2,570,674 | No | Form 4 |
| Tompkins Mark N. | Oct 9, 2025 | Oct 9, 2025 | S | 1,000 | $17.25 | Sale −$17,250 | 2,569,674 | No | Form 4 |
| Tompkins Mark N. | Oct 8, 2025 | Oct 9, 2025 | S | 34,300 | $17.46 | Sale −$598,878 | 2,607,282 | No | Form 4 |
| Tompkins Mark N. | Oct 8, 2025 | Oct 9, 2025 | S | 700 | $18.14 | Sale −$12,698 | 2,606,582 | No | Form 4 |
| Tompkins Mark N. | Oct 7, 2025 | Oct 9, 2025 | S | 26,693 | $17.46 | Sale −$466,060 | 2,649,889 | No | Form 4 |
| Tompkins Mark N. | Oct 7, 2025 | Oct 9, 2025 | S | 7,907 | $18.66 | Sale −$147,545 | 2,641,982 | No | Form 4 |
| Tompkins Mark N. | Oct 7, 2025 | Oct 9, 2025 | S | 400 | $19.16 | Sale −$7,664 | 2,641,582 | No | Form 4 |
| Tompkins Mark N. | Oct 6, 2025 | Oct 6, 2025 | S | 63,604 | $18.70 | Sale −$1,189,395 | 2,676,582 | No | Form 4 |
| Tompkins Mark N. | Oct 3, 2025 | Oct 6, 2025 | S | 18,189 | $17.30 | Sale −$314,670 | 2,753,144 | No | Form 4 |
| Tompkins Mark N. | Oct 3, 2025 | Oct 6, 2025 | S | 12,958 | $17.94 | Sale −$232,467 | 2,740,186 | No | Form 4 |
| Tompkins Mark N. | Oct 2, 2025 | Oct 6, 2025 | S | 34,880 | $17.10 | Sale −$596,448 | 2,771,453 | No | Form 4 |
| Tompkins Mark N. | Oct 2, 2025 | Oct 6, 2025 | S | 120 | $17.58 | Sale −$2,110 | 2,771,333 | No | Form 4 |
| Tompkins Mark N. | Sep 30, 2025 | Oct 6, 20254/A | S | 33,800 | $16.18 | Sale −$546,884 | 2,857,033 | No | Form 4/A |
| Klamkin JonathanChief Executive Officer | Aug 14, 2025 | Sep 9, 20254/A | S | 150,000 | $18.85 | Sale −$2,827,500 | 1,479,398 | No | Form 4/A |
| Klamkin JonathanChief Executive Officer | Jul 1, 2025 | Sep 9, 20254/A | J | 2,403 | $16.37 | $39,337 | 1,629,398 | No | Form 4/A |
| Klamkin JonathanChief Executive Officer | Jul 1, 2025 | Sep 9, 20254/A | J · derivative | 6,253 | $16.37 | $102,362 | 326,253 | No | Form 4/A |
| Ensley Craig H | Jan 10, 2025 | May 23, 2025 | A · derivative | 85,885 | $7.80 | $669,903 | 129,889 | No | Form 4 |
| Paglia John Kenneth | Jan 10, 2025 | May 23, 2025 | A · derivative | 87,973 | $7.80 | $686,189 | 210,011 | No | Form 4 |
| Denbaars Steven | Jan 10, 2025 | May 23, 2025 | A · derivative | 84,663 | $7.80 | $660,371 | 127,942 | No | Form 4 |
| Tompkins Mark N. | Mar 27, 2025 | Mar 31, 2025 | C | 200,000 | $3.50 | $700,000 | 2,915,833 | No | Form 4 |
| Tompkins Mark N. | Mar 27, 2025 | Mar 31, 2025 | C · derivative | 200,000 | $3.50 | $700,000 | not reported | No | Form 4 |