Aeluma (ALMU) Insider Trading & Ownership $22.64 0.00 (0.00%) Closing price 05/22/2026 04:00 PM EasternExtended Trading$22.59 -0.05 (-0.23%) As of 05/22/2026 07:55 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more. Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Aeluma (NASDAQ:ALMU) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage14.70%Number OfInsiders Buying(Last 12 Months)0Number OfInsiders Selling(Last 12 Months)3Amount OfInsider Selling(Last 12 Months)$22.90M Get ALMU Insider Trade Alerts Want to know when executives and insiders are buying or selling Aeluma stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. 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ALMU Insider Buying and Selling by Quarter Aeluma Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame Start Date End Date Export Transaction DateInsiderBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails5/19/2026Steven DenbaarsDirectorSell12,500$19.99$249,875.00 5/1/2026Jonathan KlamkinCEOSell20,000$24.96$499,200.00 4/1/2026Jonathan KlamkinCEOSell20,000$13.10$262,000.00 3/4/2026Jonathan KlamkinCEOSell50,000$18.05$902,500.00 2/25/2026Steven DenbaarsDirectorSell12,500$17.58$219,750.00 2/4/2026Mark N TompkinsMajor ShareholderSell34,500$14.71$507,495.00 2/2/2026Mark N TompkinsMajor ShareholderSell37,500$15.74$590,250.00 1/30/2026Mark N TompkinsMajor ShareholderSell25,000$15.91$397,750.00 1/29/2026Mark N TompkinsMajor ShareholderSell32,500$16.82$546,650.00 1/22/2026Mark N TompkinsMajor ShareholderSell30,000$18.07$542,100.00 Get Insider Trades Delivered To Your InboxEnter your email address below to receive a concise daily summary of insider buying activity, insider selling activity and changes in hedge fund holdings. 1/21/2026Mark N TompkinsMajor ShareholderSell45,000$18.82$846,900.00 1/20/2026Mark N TompkinsMajor ShareholderSell30,000$20.69$620,700.00 12/26/2025Mark N TompkinsMajor ShareholderSell30,000$17.79$533,700.00 12/23/2025Mark N TompkinsMajor ShareholderSell15,000$14.87$223,050.00 12/22/2025Mark N TompkinsMajor ShareholderSell35,000$14.83$519,050.00 12/19/2025Mark N TompkinsMajor ShareholderSell30,000$14.70$441,000.00 12/18/2025Mark N TompkinsMajor ShareholderSell20,000$14.37$287,400.00 12/10/2025Mark N TompkinsMajor ShareholderSell20,000$17.49$349,800.00 12/9/2025Mark N TompkinsMajor ShareholderSell30,000$16.82$504,600.00 12/8/2025Mark N TompkinsMajor ShareholderSell40,000$16.06$642,400.00 12/4/2025Mark N TompkinsMajor ShareholderSell30,000$16.03$480,900.00 10/20/2025Mark N TompkinsMajor ShareholderSell37,500$16.39$614,625.00 10/17/2025Mark N TompkinsMajor ShareholderSell40,000$16.93$677,200.00 10/16/2025Mark N TompkinsMajor ShareholderSell25,000$19.29$482,250.00 10/15/2025Mark N TompkinsMajor ShareholderSell40,000$20.59$823,600.00 10/14/2025Mark N TompkinsMajor ShareholderSell36,855$19.86$731,940.30 10/13/2025Mark N TompkinsMajor ShareholderSell35,331$16.98$599,920.38 10/10/2025Mark N TompkinsMajor ShareholderSell35,000$16.67$583,450.00 10/9/2025Mark N TompkinsMajor ShareholderSell36,908$16.56$611,196.48 10/8/2025Mark N TompkinsMajor ShareholderSell35,000$17.47$611,450.00 10/6/2025Mark N TompkinsMajor ShareholderSell63,604$18.70$1,189,394.80 10/3/2025Mark N TompkinsMajor ShareholderSell31,147$17.57$547,252.79 10/2/2025Mark N TompkinsMajor ShareholderSell35,000$17.10$598,500.00 10/1/2025Mark N TompkinsMajor ShareholderSell50,500$16.87$851,935.00 9/30/2025Mark N TompkinsMajor ShareholderSell33,580$16.19$543,660.20 9/29/2025Mark N TompkinsMajor ShareholderSell25,000$17.57$439,250.00 8/14/2025Jonathan KlamkinCEOSell150,000$18.85$2,827,500.00 (Data available from 1/1/2013 forward) ALMU Insider Trading Activity - Frequently Asked Questions Who is on Aeluma's Insider Roster? The list of insiders at Aeluma includes Jonathan Klamkin, Mark N Tompkins, Steven Denbaars. Learn more on insiders at ALMU. What percentage of Aeluma stock is owned by insiders? 14.70% of Aeluma stock is owned by insiders. Learn more on ALMU's insider holdings. Which Aeluma insiders have been selling company stock? The following insiders have sold ALMU shares in the last 24 months: Jonathan Klamkin ($4,491,200.00), Mark N Tompkins ($17,939,369.95), and Steven Denbaars ($469,625.00). How much insider selling is happening at Aeluma? Insiders have sold a total of 1,309,925 Aeluma shares in the last 24 months for a total of $22,900,194.95 sold. Aeluma Active InsidersJonathan Klamkin (Age 46)CEO3 recent tradesSteven DenbaarsDirector2 recent tradesMark N TompkinsMajor Shareholder16 recent trades More Insider Trading Tools from MarketBeat Related Companies SKYT Insider Buying AIP Insider Buying BKSY Insider Buying SHLS Insider Buying AMBQ Insider Buying NSSC Insider Buying JKS Insider Buying GILT Insider Buying SATL Insider Buying INDI Insider Buying Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Latest Articles 3 Dividend Stocks With Insiders Buying in 2026Insider Buying Says Upstart Isn’t Down for the CountInsider Trades: Okta and Abbott See Buys, Micron Insiders SellMarketBeat Week in Review – 05/04 - 05/08BlackBerry Rewrites Its Own Operating System This page (NASDAQ:ALMU) was last updated on 5/25/2026 by MarketBeat.com Staff. 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