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Aeluma, Inc. (ALMU) Stock Price, Key Stats & Insider Trading
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Aeluma, Inc. (ALMU) XNAS SEMICONDUCTORS & RELATED DEVICES Net insider selling (90d)
Latest ALMU Insider Trades
About Aeluma, Inc. (ALMU) Aeluma Inc is a semiconductor company specializing in sensors and communications. It is developing sensor technology for mobile devices and vehicles. The company develops novel optoelectronic devices for sensing and communications applications. The company manufactures devices using high-performance compound semiconductor materials on large-diameter substrates that are commonly used to manufacture mass-market microelectronics. The applications include mobile, automotive, AI, defense & aerospace, communication, AR/VR and quantum computing.
Headquarters GOLETA, CA
Employees 14
Listed 2022
Exchange XNAS https://www.aeluma.com SEC filings for ALMU on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market sale 11 85,000 $1.60M Bona-fide gift 6 120,000
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
ALMU Insider Transactions (Form 4) 108 29 Form 4 filings on record, the earliest from Jan 10, 2025, newest first.
Date Insider Transaction Security Shares Price Value Aug 26, 2026 SD Steven Denbaars - Director Open-market sale Common Stock
Recent ALMU Form 8-K Filings 4
Recent ALMU Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Aug 26, 2026 Steven DenBaars Director 25,000 $347K View on EDGAR Jul 1, 2026 - -
ALMU Insider Trading - FAQ
What is the latest insider trade for ALMU? Aeluma, Inc. (ALMU) had 4 insider filings in the last 90 days, with the most recent on 2026-08-28. The full record for ALMU runs to 29 Form 4 filings, the earliest from 2025-01-10. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying ALMU stock? No insider purchases of ALMU were filed in the last 90 days.
How many insiders are selling ALMU stock? 11 insider sales of ALMU were filed in the last 90 days, totaling $1.60M.
Where can I see ALMU SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks ALMU Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow ALMU insider buys? Create a free InsiderAlpha account and press Watch on this page to add ALMU to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Information Technology Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track ALMU insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
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Market cap $240.53M
P/E ratio -
Dividend yield -
Average volume 682.1K
52 week high $31.79
52 week low $10.24
Today's high $13.80
Today's low $13.03
Open $13.77
Volume 425.7K
Previous close $13.92
Shares outstanding 18.31M Market cap
$240.53M
14 employees
ALMU Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
0% Buying 100% Selling
0 insider purchases totaling $0 against 11 sales totaling $1.60M.
Most-Active ALMU Insiders - Last 90 Days 7 Aug 27, 2026 SD Steven Denbaars - Director Open-market sale Common Stock 12,500 $13.82 $173K
Aug 3, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 4,190 $16.29 $68K
Aug 3, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 15,810 $16.85 $266K
Jul 1, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 19,900 $21.08 $420K
Jun 1, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 900 $22.19 $20K
Jun 1, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 1,400 $23.32 $33K
Jun 1, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 7,900 $24.39 $193K
Jun 1, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 1,600 $25.12 $40K
Jun 1, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 8,200 $26.25 $215K
May 1, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 4,300 $24.20 $104K
May 1, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 15,024 $25.15 $378K
May 1, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 676 $25.71 $17K
Apr 1, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 20,000 $13.10 $262K
Mar 4, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 21,794 $18.41 $401K
Mar 4, 2026 JK Jonathan Klamkin - Officer Open-market sale Common Stock 28,206 $17.77 $501K
Sep 1, 2025 MB Michael Byron Grant or award Stock Option (right to buy) 3,653 $0.00 -
Jan 29, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 27,297 $16.75 $457K
Jan 29, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 5,203 $17.16 $89K
Jan 30, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 24,092 $15.88 $383K
Jan 30, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 908 $16.79 $15K
Feb 2, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 37,500 $15.74 $590K
Jan 21, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 10 $21.24 $212
Jan 20, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 29,112 $20.66 $601K
Jan 20, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 888 $21.58 $19K
Jan 21, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 30,328 $18.52 $562K
Jan 21, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 12,947 $19.30 $250K
Jan 21, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 1,715 $20.44 $35K
Jan 22, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 29,038 $18.05 $524K
Jan 22, 2026 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 962 $18.81 $18K
Feb 17, 2023 LM Lee McCarthy - 10% Owner Open-market sale Common Stock 649,570 $0.01 $4K
Dec 23, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 15,000 $14.87 $223K
Dec 24, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 15,000 $16.05 $241K
Dec 26, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 6,970 $16.91 $118K
Dec 26, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 20,368 $18.01 $367K
Dec 26, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 2,662 $18.39 $49K
Dec 18, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 20,000 $14.37 $287K
Dec 19, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 30,000 $14.70 $441K
Dec 22, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 35,000 $14.83 $519K
Dec 9, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 10,861 $16.39 $178K
Dec 9, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 19,139 $17.06 $327K
Dec 10, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 20,000 $17.49 $350K
Dec 4, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 11,500 $15.49 $178K
Dec 4, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 18,500 $16.37 $303K
Dec 5, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 28,390 $16.12 $458K
Dec 5, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 1,610 $16.49 $27K
Dec 8, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 39,012 $16.04 $626K
Dec 8, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 988 $16.87 $17K
Oct 17, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 33,344 $16.75 $559K
Oct 17, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 5,913 $17.77 $105K
Oct 17, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 743 $18.45 $14K
Oct 20, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 37,500 $16.39 $615K
Oct 15, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 24,147 $20.11 $486K
Oct 15, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 15,853 $21.31 $338K
Oct 16, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 17,540 $18.97 $333K
Oct 16, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 6,650 $19.96 $133K
Oct 16, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 810 $20.72 $17K
Oct 13, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 300 $17.57 $5K
Oct 10, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 30,587 $16.60 $508K
Oct 10, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 4,413 $17.16 $76K
Oct 13, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 35,031 $16.97 $594K
Oct 14, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 36,855 $19.86 $732K
Oct 9, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 1,000 $17.25 $17K
Oct 7, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 26,693 $17.46 $466K
Oct 7, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 7,907 $18.66 $148K
Oct 7, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 400 $19.16 $8K
Oct 8, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 34,300 $17.46 $599K
Oct 8, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 700 $18.14 $13K
Oct 9, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 35,908 $16.54 $594K
Oct 2, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 120 $17.58 $2K
Oct 2, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 34,880 $17.10 $596K
Oct 3, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 18,189 $17.30 $315K
Oct 3, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 12,958 $17.94 $232K
Oct 6, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 63,604 $18.70 $1.19M
Sep 30, 2025 MT Mark N. Tompkins - 10% Owner Open-market sale Common Stock 33,800 $16.18 $547K
Aug 14, 2025 JK Jonathan Klamkin - Officer Open-market sale Common Stock 150,000 $18.85 $2.83M
Jan 10, 2025 CE Craig H. Ensley - Director Grant or award Stock Option 85,885 $7.80 $670K
$AME
AMETEK INC/
$AAOI
APPLIED OPTOELECTRONICS, INC.
Steven Denbaars - DirectorOpen-market sale$173K
