Aeluma Director Steven Denbaars Sells 25,000 Shares Under 10b5-1 Plan

This Form 4 filing discloses that Steven Denbaars, a director of Aeluma, Inc. (ALMU), sold a total of 25,000 shares of common stock over two days in May 2026. The sales were executed pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2025. On May 19, 2026, Denbaars sold 12,500 shares in two transactions at weighted average prices of $19.5584 and $20.6111 per share. On May 20, 2026, he sold an additional 12,500 shares in two transactions at weighted average prices of $20.3957 and $21.2991 per share. Following these transactions, Denbaars' ownership decreased from 395,209 shares to 370,209 shares. The sales were conducted in multiple transactions at varying price ranges, as detailed in the footnotes. The filing was signed by Joshua L. Colburn as attorney-in-fact on May 21, 2026.