MetaCap

Aeluma Insider Trades

NASDAQ: ALMUTechnologySemiconductorsUSD

11.40-0.53 (-4.44%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Pre-market: 11.70 +2.63%

Last 12 months

Purchases
0 · $0
Sales
70 · $18.56M
Shares bought / sold
0 / 1.09M
Net activity
Net selling $18.6 million

Aeluma insider activity

Over the last 12 months, Aeluma insiders reported 98 transactions on SEC Form 4: 0 open-market purchases and 70 sales. Insiders bought $0 and sold $18.6 million worth of stock, for net insider selling of $18.6 million. The largest seller was Tompkins Mark N., with $12.7 million in reported sales.

The most recent filing shows Stewart Christopher P. (Chief Financial Officer) reporting a transaction in 5,697 shares at $12.36 on Sep 30, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put ALMU's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

ALMU insider transactions

Aeluma insider transactions
DateInsiderTypeSharesValueFiling
Sep 30, 2026Stewart Christopher P.Chief Financial OfficerTax withholding5,697$70.41KForm 4
Sep 21, 2026Byron MichaelDirectorOption exercise25,000$148.25KForm 4
Sep 21, 2026Klamkin JonathanChief Executive OfficerTax withholding4,547$61.88KForm 4
Sep 21, 2026Klamkin JonathanChief Executive OfficerAward12,675—Form 4
Sep 21, 2026Klamkin JonathanChief Executive OfficerAward31,771—Form 4
Sep 21, 2026Klamkin JonathanChief Executive OfficerSale100,000$1.34MForm 4
Sep 21, 2026Stewart Christopher P.Chief Financial OfficerTax withholding1,450$19.73KForm 4
Sep 21, 2026Stewart Christopher P.Chief Financial OfficerAward4,042—Form 4
Sep 21, 2026Stewart Christopher P.Chief Financial OfficerAward15,886—Form 4
Aug 27, 2026Denbaars StevenDirectorSale12,500$172.70KForm 4
Aug 27, 2026Denbaars StevenDirectorSale12,500$172.70KForm 4
Aug 26, 2026Denbaars StevenDirectorSale12,500$173.04KForm 4
Aug 26, 2026Denbaars StevenDirectorSale12,500$173.04KForm 4
Aug 3, 2026Klamkin JonathanChief Executive OfficerSale15,810$266.38KForm 4
Aug 3, 2026Klamkin JonathanChief Executive OfficerSale4,190$68.26KForm 4
Aug 3, 2026Klamkin JonathanChief Executive OfficerGift20,000—Form 4
Aug 3, 2026Klamkin JonathanChief Executive OfficerGift20,000—Form 4
Jul 1, 2026Klamkin JonathanChief Executive OfficerSale100$2.16KForm 4
Jul 1, 2026Klamkin JonathanChief Executive OfficerSale19,900$419.51KForm 4
Jul 1, 2026Klamkin JonathanChief Executive OfficerGift20,000—Form 4
Jul 1, 2026Klamkin JonathanChief Executive OfficerGift20,000—Form 4
Jun 1, 2026Klamkin JonathanChief Executive OfficerSale8,200$215.21KForm 4
Jun 1, 2026Klamkin JonathanChief Executive OfficerSale1,600$40.19KForm 4
Jun 1, 2026Klamkin JonathanChief Executive OfficerSale7,900$192.64KForm 4
Jun 1, 2026Klamkin JonathanChief Executive OfficerSale1,400$32.65KForm 4
Jun 1, 2026Klamkin JonathanChief Executive OfficerSale900$19.97KForm 4
Jun 1, 2026Klamkin JonathanChief Executive OfficerGift20,000—Form 4
Jun 1, 2026Klamkin JonathanChief Executive OfficerGift20,000—Form 4
May 20, 2026Denbaars StevenDirectorSale942$20.06KForm 4
May 20, 2026Denbaars StevenDirectorSale11,558$235.73KForm 4
May 19, 2026Denbaars StevenDirectorSale5,085$104.81KForm 4
May 19, 2026Denbaars StevenDirectorSale7,415$145.03KForm 4
May 1, 2026Klamkin JonathanChief Executive OfficerSale676$17.38KForm 4
May 1, 2026Klamkin JonathanChief Executive OfficerSale15,024$377.83KForm 4
May 1, 2026Klamkin JonathanChief Executive OfficerSale4,300$104.06KForm 4
May 1, 2026Klamkin JonathanChief Executive OfficerGift20,000—Form 4
May 1, 2026Klamkin JonathanChief Executive OfficerGift20,000—Form 4
Apr 1, 2026Klamkin JonathanChief Executive OfficerSale20,000$261.95KForm 4
Apr 1, 2026Klamkin JonathanChief Executive OfficerGift20,000—Form 4
Apr 1, 2026Klamkin JonathanChief Executive OfficerGift20,000—Form 4
Mar 4, 2026Klamkin JonathanChief Executive OfficerSale21,794$401.25KForm 4
Mar 4, 2026Klamkin JonathanChief Executive OfficerSale28,206$501.35KForm 4
Mar 4, 2026Klamkin JonathanChief Executive OfficerGift50,000—Form 4
Mar 4, 2026Klamkin JonathanChief Executive OfficerGift50,000—Form 4
Feb 26, 2026Denbaars StevenDirectorSale12,500$198.09KForm 4
Feb 25, 2026Denbaars StevenDirectorSale12,500$219.77KForm 4
Feb 4, 2026Tompkins Mark N.Former 10% OwnerSale5,956$90.05KForm 4
Feb 4, 2026Tompkins Mark N.Former 10% OwnerSale28,544$417.60KForm 4
Feb 2, 2026Tompkins Mark N.10% OwnerSale37,500$590.25KForm 4
Jan 30, 2026Tompkins Mark N.10% OwnerSale908$15.25KForm 4
Jan 30, 2026Tompkins Mark N.10% OwnerSale24,092$382.58KForm 4
Jan 29, 2026Tompkins Mark N.10% OwnerSale5,203$89.28KForm 4
Jan 29, 2026Tompkins Mark N.10% OwnerSale27,297$457.22KForm 4
Jan 22, 2026Tompkins Mark N.10% OwnerSale962$18.10KForm 4
Jan 22, 2026Tompkins Mark N.10% OwnerSale29,038$524.14KForm 4
Jan 21, 2026Tompkins Mark N.10% OwnerSale10$212.40Form 4
Jan 21, 2026Tompkins Mark N.10% OwnerSale1,715$35.05KForm 4
Jan 21, 2026Tompkins Mark N.10% OwnerSale12,947$249.88KForm 4
Jan 21, 2026Tompkins Mark N.10% OwnerSale30,328$561.67KForm 4
Jan 20, 2026Tompkins Mark N.10% OwnerSale888$19.16KForm 4
Jan 20, 2026Tompkins Mark N.10% OwnerSale29,112$601.45KForm 4
Dec 29, 2025Klamkin JonathanChief Executive OfficerGift1,126,995—Form 4
Dec 29, 2025Klamkin JonathanChief Executive OfficerGift1,126,995—Form 4
Dec 26, 2025Tompkins Mark N.10% OwnerSale2,662$48.95KForm 4
Dec 26, 2025Tompkins Mark N.10% OwnerSale20,368$366.83KForm 4
Dec 26, 2025Tompkins Mark N.10% OwnerSale6,970$117.86KForm 4
Dec 24, 2025Tompkins Mark N.10% OwnerSale15,000$240.75KForm 4
Dec 23, 2025Tompkins Mark N.10% OwnerSale15,000$223.05KForm 4
Dec 22, 2025Tompkins Mark N.10% OwnerSale35,000$519.05KForm 4
Dec 19, 2025Tompkins Mark N.10% OwnerSale30,000$441.00KForm 4
Dec 19, 2025Klamkin JonathanChief Executive OfficerGift350,000—Form 4
Dec 19, 2025Klamkin JonathanChief Executive OfficerGift350,000—Form 4
Dec 18, 2025Tompkins Mark N.10% OwnerSale20,000$287.40KForm 4
Dec 10, 2025Tompkins Mark N.10% OwnerSale20,000$349.80KForm 4
Dec 9, 2025Tompkins Mark N.10% OwnerSale19,139$326.51KForm 4
Dec 9, 2025Tompkins Mark N.10% OwnerSale10,861$178.01KForm 4
Dec 8, 2025Tompkins Mark N.10% OwnerSale988$16.67KForm 4
Dec 8, 2025Tompkins Mark N.10% OwnerSale39,012$625.75KForm 4
Dec 5, 2025Tompkins Mark N.10% OwnerSale1,610$26.55KForm 4
Dec 5, 2025Tompkins Mark N.10% OwnerSale28,390$457.65KForm 4
Dec 4, 2025Tompkins Mark N.10% OwnerSale18,500$302.85KForm 4
Dec 4, 2025Tompkins Mark N.10% OwnerSale11,500$178.13KForm 4
Dec 3, 2025Byron MichaelDirectorAward13,343—Form 4
Dec 3, 2025Paglia John KennethDirectorAward10,861—Form 4
Dec 3, 2025ENSLEY CRAIG HDirectorAward10,633—Form 4
Dec 3, 2025Denbaars StevenDirectorAward10,121—Form 4
Oct 20, 2025Tompkins Mark N.10% OwnerSale37,500$614.63KForm 4
Oct 17, 2025Tompkins Mark N.10% OwnerSale743$13.71KForm 4
Oct 17, 2025Tompkins Mark N.10% OwnerSale5,913$105.07KForm 4
Oct 17, 2025Tompkins Mark N.10% OwnerSale33,344$558.51KForm 4
Oct 16, 2025Tompkins Mark N.10% OwnerSale810$16.78KForm 4
Oct 16, 2025Tompkins Mark N.10% OwnerSale6,650$132.73KForm 4
Oct 16, 2025Tompkins Mark N.10% OwnerSale17,540$332.73KForm 4
Oct 15, 2025Tompkins Mark N.10% OwnerSale15,853$337.83KForm 4
Oct 15, 2025Tompkins Mark N.10% OwnerSale24,147$485.60KForm 4
Oct 14, 2025Tompkins Mark N.10% OwnerSale36,855$731.94KForm 4
Oct 13, 2025Tompkins Mark N.10% OwnerSale300$5.27KForm 4
Oct 13, 2025Tompkins Mark N.10% OwnerSale35,031$594.48KForm 4
Oct 10, 2025Tompkins Mark N.10% OwnerSale4,413$75.73KForm 4
Oct 10, 2025Tompkins Mark N.10% OwnerSale30,587$507.74KForm 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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