In the last 12 months, insiders at Aeluma, Inc. ($ALMU) filed 96 transactions with the SEC: 1 open-market purchases totaling $99,999 and 81 sales totaling $26,811,159. Net insider sentiment: net selling.
Aeluma, Inc. operates in the Semiconductors & related devices industry (Manufacturing sector).
Most Active Insiders
- Tompkins Mark N. (TenPercentOwner) — 65 transactions totaling $20,024,450
- Klamkin Jonathan (Chief Executive Officer) — 10 transactions totaling $6,635,927
- Tompkins Mark N. (Other) — 2 transactions totaling $507,653
- Denbaars Steven (Not found) — 3 transactions totaling $417,860
- Denbaars Steven (Director) — 3 transactions totaling $100,010
View all SEC Filings for Aeluma, Inc. (ALMU).
Set Up your own filters →Recent Insider Transactions
| Transaction Date | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|
| March 4, 2026 | Klamkin Jonathan | Chief Executive Officer | S | Common Stock | 21794 | $18.41 | 1,429,398.0000 | 17,875,930 | 1.50% | 0.12% |
| March 4, 2026 | Klamkin Jonathan | Chief Executive Officer | S | Common Stock | 28206 | $17.77 | 1,451,192.0000 | 17,875,930 | 1.91% | 0.16% |
| Dec. 3, 2025 | Byron Michael | Not found | A | Common Stock | 13343 | $0.00 | 13,343.0000 | 16,141,153 | 9999.99% | 0.08% |
| Dec. 3, 2025 | ENSLEY CRAIG H | Not found | A | Common Stock | 10633 | $0.00 | 27,300.0000 | 16,141,153 | 63.80% | 0.07% |
| Dec. 3, 2025 | Denbaars Steven | Not found | A | Common Stock | 10121 | $0.00 | 395,209.0000 | 16,141,153 | 2.63% | 0.06% |
| Sept. 1, 2025 | Byron Michael | Not found | A | Stock Option (right to buy) | 3653 | $0.00 | 3,653.0000 | 13,168,345 | 9999.99% | 0.03% |
| Dec. 3, 2025 | Paglia John Kenneth | Not found | A | Common Stock | 10861 | $0.00 | 23,361.0000 | 16,141,153 | 86.89% | 0.07% |
| Feb. 26, 2026 | Denbaars Steven | Not found | S | Common Stock | 12500 | $15.85 | 385,088.0000 | 17,875,930 | 3.14% | 0.07% |
| Feb. 25, 2026 | Denbaars Steven | Not found | S | Common Stock | 12500 | $17.58 | 397,588.0000 | 17,875,930 | 3.05% | 0.07% |
| Feb. 4, 2026 | Tompkins Mark N. | Other | S | Common Stock | 28544 | $14.63 | 1,796,444.0000 | 17,875,930 | 1.56% | 0.16% |
| Feb. 4, 2026 | Tompkins Mark N. | Other | S | Common Stock | 5956 | $15.12 | 1,790,488.0000 | 17,875,930 | 0.33% | 0.03% |
| Jan. 29, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 27297 | $16.75 | 1,892,691.0000 | 17,875,930 | 1.42% | 0.15% |
| Jan. 29, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 5203 | $17.16 | 1,887,488.0000 | 17,875,930 | 0.27% | 0.03% |
| Feb. 2, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 37500 | $15.74 | 1,824,988.0000 | 17,875,930 | 2.01% | 0.21% |
| Jan. 30, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 908 | $16.79 | 1,862,488.0000 | 17,875,930 | 0.05% | 0.01% |
| Jan. 30, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 24092 | $15.88 | 1,863,396.0000 | 17,875,930 | 1.28% | 0.13% |
| Jan. 20, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 888 | $21.58 | 1,994,988.0000 | 17,875,930 | 0.04% | 0.00% |
| Jan. 20, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 29112 | $20.66 | 1,995,876.0000 | 17,875,930 | 1.44% | 0.16% |
| Jan. 21, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 30328 | $18.52 | 1,964,660.0000 | 17,875,930 | 1.52% | 0.17% |
| Jan. 21, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 12947 | $19.30 | 1,951,713.0000 | 17,875,930 | 0.66% | 0.07% |
| Jan. 21, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 1715 | $20.44 | 1,949,998.0000 | 17,875,930 | 0.09% | 0.01% |
| Jan. 21, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 10 | $21.24 | 1,949,988.0000 | 17,875,930 | 0.00% | 0.00% |
| Jan. 22, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 29038 | $18.05 | 1,920,950.0000 | 17,875,930 | 1.49% | 0.16% |
| Jan. 22, 2026 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 962 | $18.81 | 1,919,988.0000 | 17,875,930 | 0.05% | 0.01% |
| Feb. 17, 2023 | McCarthy Lee | TenPercentOwner | S | Common Stock | 649570 | $0.01 | 977,425.0000 | 10,795,872 | 39.92% | 6.02% |
| Dec. 26, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 2662 | $18.39 | 2,024,988.0000 | 16,141,153 | 0.13% | 0.02% |
| Dec. 23, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 15000 | $14.87 | 2,069,988.0000 | 16,141,153 | 0.72% | 0.09% |
| Dec. 24, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 15000 | $16.05 | 2,054,988.0000 | 16,141,153 | 0.72% | 0.09% |
| Dec. 26, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 6970 | $16.91 | 2,048,018.0000 | 16,141,153 | 0.34% | 0.04% |
| Dec. 26, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 20368 | $18.01 | 2,027,650.0000 | 16,141,153 | 0.99% | 0.13% |
| Dec. 19, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 30000 | $14.70 | 2,119,988.0000 | 16,141,153 | 1.40% | 0.19% |
| Dec. 22, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 35000 | $14.83 | 2,084,988.0000 | 16,141,153 | 1.65% | 0.22% |
| Dec. 18, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 20000 | $14.37 | 2,149,988.0000 | 16,141,153 | 0.92% | 0.12% |
| Dec. 10, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 20000 | $17.49 | 2,169,988.0000 | 16,141,153 | 0.91% | 0.12% |
| Dec. 9, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 10861 | $16.39 | 2,209,127.0000 | 16,141,153 | 0.49% | 0.07% |
| Dec. 9, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 19139 | $17.06 | 2,189,988.0000 | 16,141,153 | 0.87% | 0.12% |
| Dec. 8, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 988 | $16.87 | 2,219,988.0000 | 16,141,153 | 0.04% | 0.01% |
| Dec. 4, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 18500 | $16.37 | 2,289,988.0000 | 16,141,153 | 0.80% | 0.11% |
| Dec. 5, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 28390 | $16.12 | 2,261,598.0000 | 16,141,153 | 1.24% | 0.18% |
| Dec. 5, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 1610 | $16.49 | 2,259,988.0000 | 16,141,153 | 0.07% | 0.01% |
| Dec. 8, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 39012 | $16.04 | 2,220,976.0000 | 16,141,153 | 1.73% | 0.24% |
| Dec. 4, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 11500 | $15.49 | 2,308,488.0000 | 16,141,153 | 0.50% | 0.07% |
| Oct. 17, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 33344 | $16.75 | 2,364,144.0000 | 16,141,153 | 1.39% | 0.21% |
| Oct. 17, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 5913 | $17.77 | 2,358,231.0000 | 16,141,153 | 0.25% | 0.04% |
| Oct. 17, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 743 | $18.45 | 2,357,488.0000 | 16,141,153 | 0.03% | 0.00% |
| Oct. 20, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 37500 | $16.39 | 2,319,988.0000 | 16,141,153 | 1.59% | 0.23% |
| Oct. 15, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 24147 | $20.11 | 2,438,341.0000 | 16,141,153 | 0.98% | 0.15% |
| Oct. 16, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 17540 | $18.97 | 2,404,948.0000 | 16,141,153 | 0.72% | 0.11% |
| Oct. 16, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 6650 | $19.96 | 2,398,298.0000 | 16,141,153 | 0.28% | 0.04% |
| Oct. 16, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 810 | $20.72 | 2,397,488.0000 | 16,141,153 | 0.03% | 0.01% |
| Oct. 15, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 15853 | $21.31 | 2,422,488.0000 | 16,141,153 | 0.65% | 0.10% |
| Oct. 13, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 35031 | $16.97 | 2,499,643.0000 | 16,141,153 | 1.38% | 0.22% |
| Oct. 10, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 30587 | $16.60 | 2,539,087.0000 | 16,141,153 | 1.19% | 0.19% |
| Oct. 10, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 4413 | $17.16 | 2,534,674.0000 | 16,141,153 | 0.17% | 0.03% |
| Oct. 13, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 300 | $17.57 | 2,499,343.0000 | 16,141,153 | 0.01% | 0.00% |
| Oct. 14, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 36855 | $19.86 | 2,462,488.0000 | 16,141,153 | 1.47% | 0.23% |
| Oct. 8, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 700 | $18.14 | 2,606,582.0000 | 16,141,153 | 0.03% | 0.00% |
| Oct. 9, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 1000 | $17.25 | 2,569,674.0000 | 16,141,153 | 0.04% | 0.01% |
| Oct. 9, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 35908 | $16.54 | 2,570,674.0000 | 16,141,153 | 1.38% | 0.22% |
| Oct. 7, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 26693 | $17.46 | 2,649,889.0000 | 16,141,153 | 1.00% | 0.17% |
| Oct. 7, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 7907 | $18.66 | 2,641,982.0000 | 16,141,153 | 0.30% | 0.05% |
| Oct. 7, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 400 | $19.16 | 2,641,582.0000 | 16,141,153 | 0.02% | 0.00% |
| Oct. 8, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 34300 | $17.46 | 2,607,282.0000 | 16,141,153 | 1.30% | 0.21% |
| Oct. 3, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 12958 | $17.94 | 2,740,186.0000 | 16,141,153 | 0.47% | 0.08% |
| Oct. 6, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 63604 | $18.70 | 2,676,582.0000 | 16,141,153 | 2.32% | 0.39% |
| Sept. 30, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 33800 | $16.18 | 2,857,033.0000 | 13,168,345 | 1.17% | 0.26% |
| Oct. 2, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 120 | $17.58 | 2,771,333.0000 | 16,141,153 | 0.00% | 0.00% |
| Oct. 2, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 34880 | $17.10 | 2,771,453.0000 | 16,141,153 | 1.24% | 0.22% |
| Oct. 3, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 18189 | $17.30 | 2,753,144.0000 | 16,141,153 | 0.66% | 0.11% |
| Oct. 1, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 41367 | $16.97 | 2,806,333.0000 | 16,141,153 | 1.45% | 0.26% |
| Sept. 29, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 23382 | $17.52 | 2,892,451.0000 | 13,168,345 | 0.80% | 0.18% |
| Sept. 29, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 1618 | $18.36 | 2,890,833.0000 | 13,168,345 | 0.06% | 0.01% |
| Sept. 30, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 33380 | $16.18 | 2,857,033.0000 | 13,168,345 | 1.15% | 0.25% |
| Sept. 30, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 200 | $17.54 | 2,856,833.0000 | 13,168,345 | 0.01% | 0.00% |
| Oct. 1, 2025 | Tompkins Mark N. | TenPercentOwner | S | Common Stock | 9133 | $16.39 | 2,847,700.0000 | 16,141,153 | 0.32% | 0.06% |
| July 1, 2025 | Klamkin Jonathan | Chief Executive Officer | J | Stock Option | 6253 | $16.37 | 326,253.0000 | 13,168,345 | 1.95% | 0.05% |
| July 1, 2025 | Klamkin Jonathan | Chief Executive Officer | J | Common Stock | 2403 | $16.37 | 1,629,398.0000 | 13,168,345 | 0.15% | 0.02% |
| Aug. 14, 2025 | Klamkin Jonathan | Chief Executive Officer | S | Common Stock | 150000 | $18.85 | 1,479,398.0000 | 13,168,345 | 9.21% | 1.14% |
| July 1, 2025 | Klamkin Jonathan | Chief Executive Officer | J | Common Stock | 2403 | $16.37 | 1,629,398.0000 | 13,168,345 | 0.15% | 0.02% |
| Aug. 14, 2025 | Klamkin Jonathan | Chief Executive Officer | S | Common Stock | 150000 | $18.85 | 1,479,398.0000 | 13,168,345 | 9.21% | 1.14% |
| July 1, 2025 | Klamkin Jonathan | Chief Executive Officer | J | Stock Option | 6253 | $16.37 | 326,253.0000 | 13,168,345 | 1.95% | 0.05% |
| Dec. 1, 2021 | Paglia John Kenneth | Director | S | Stock Option | 125000 | $2.00 | 135,000.0000 | 10,650,002 | 1250.00% | 1.17% |
| July 2, 2021 | Paglia John Kenneth | Director | S | Stock Option | 10000 | $2.00 | 10,000.0000 | 3,643,728 | 9999.99% | 0.27% |
| Jan. 10, 2024 | Klamkin Jonathan | Chief Executive Officer | S | Stock Option | 220000 | $7.80 | 1,946,995.0000 | 12,167,930 | 12.74% | 1.81% |
| Nov. 30, 2022 | Klamkin Jonathan | Chief Executive Officer | S | Stock Option | 100000 | $2.10 | 1,726,995.0000 | 10,650,002 | 6.15% | 0.94% |
| Jan. 10, 2025 | Denbaars Steven | Director | A | Stock Option | 84663 | $7.80 | 127,942.0000 | 12,212,403 | 195.62% | 0.69% |
| Dec. 22, 2021 | Denbaars Steven | Director | P | Common Stock | 33333 | $3.00 | 410,088.0000 | 10,650,002 | 8.85% | 0.31% |
| March 1, 2024 | ENSLEY CRAIG H | Director | S | Stock Option | 44004 | $2.99 | 44,004.0000 | 12,167,930 | 9999.99% | 0.36% |
| March 1, 2024 | Paglia John Kenneth | Director | S | Stock Option | 13538 | $2.99 | 182,038.0000 | 12,167,930 | 8.03% | 0.11% |
| Feb. 1, 2023 | Paglia John Kenneth | Director | S | Stock Option | 16750 | $3.00 | 168,500.0000 | 10,795,872 | 11.04% | 0.16% |
| Feb. 10, 2022 | Paglia John Kenneth | Director | S | Stock Option | 16750 | $2.00 | 151,750.0000 | 10,650,002 | 12.41% | 0.16% |
| Jan. 10, 2025 | Paglia John Kenneth | Director | A | Stock Option | 87973 | $7.80 | 210,011.0000 | 12,212,403 | 72.09% | 0.72% |
| March 1, 2024 | Denbaars Steven | Director | S | Stock Option | 43279 | $2.99 | 43,279.0000 | 12,167,930 | 9999.99% | 0.36% |
| Jan. 10, 2025 | ENSLEY CRAIG H | Director | A | Stock Option | 85885 | $7.80 | 129,889.0000 | 12,212,403 | 195.18% | 0.70% |
| March 27, 2025 | Tompkins Mark N. | TenPercentOwner | C | Convertible Promissory Note | 700000 | $3.50 | 0.0000 | 12,212,403 | 100.00% | 5.73% |
| March 27, 2025 | Tompkins Mark N. | TenPercentOwner | C | Common Stock | 200000 | $3.50 | 2,915,833.0000 | 12,212,403 | 7.36% | 1.64% |