Results of Operations and Financial Condition. On September 16, 2026, Aeluma, Inc. (the “ Company ”) issued a press release announcing its financial results for the fourth quarter and fiscal year ended June 30, 2026, which were disclosed in the annual report on Form 10-K filed with the U.S. Securities and Exchange Commission on September 16, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information reported under this

Regulation FD Disclosure. On July 29, 2026, Aeluma, Inc. (the “Company”) issued a press release announcing its entry into a CHIPS and Science Act Letter of Intent with the U.S. Department of Commerce. The text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and incorporated herein by reference. The information reported under this Item 7.01, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of th…

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Entry into a Material Definitive Agreement. On March 20, 2026, Aeluma, Inc. (the “Company”), entered into a Sales Agreement (the “Agreement”) with Roth Capital Partners, LLC, as representative of the agents (the “Representative”), Craig-Hallum Capital Group LLC, Northland Securities, Inc. and The Benchmark Company, LLC (collectively, the “Agents”). Pursuant to the terms of the Agreement, the Company may sell from time to time to or through the Agents shares of the Company’s common stock, par…

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Entry into a Material Definitive Agreement. On September 17, 2025, Aeluma, Inc. (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with Craig-Hallum Capital Group LLC, as the representative of the several underwriters named therein (the “Underwriters”), relating to the issuance and sale by the Company of 1,700,000 shares of the Company’s common stock, par value $0.0001 per share (the “Common Stock”) in its previously announced public offering (the “Offering”…

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

CFO/Principal Accounting Officer — Christopher Stewart: Christopher Stewart was appointed as the full-time CFO/Principal Accounting Officer, replacing interim CFO James Seo.

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Entry Into a Material Definitive Agreement On March 26, 2025, Aeluma, Inc. (the “Company”) entered into an Underwriting Agreement (the “Underwriting Agreement”) with Craig-Hallum Capital Group LLC, (the “Underwriter”), relating to the public offering (the “Offering”) of 2,285,714 shares of common stock, par value $0.0001 per share, of the Company (the “Shares”), at a public offering price of $5.25 per share. In addition, the Company granted the Underwriter an option to purchase up to an addit…

interim Chief Financial Officer/Principal Accounting Officer — Mr. James Seo: Mr. James Seo was promoted to interim CFO/Principal Accounting Officer.

Director — Michael Byron: The Board elected Michael Byron as a new Class II Director.

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Entry into a Material Definitive Agreement. On August 5, 2024, Aeluma, Inc. (the “Company”), held the initial closing of a private offering (the “Offering”). The Company entered into note purchase agreements (the “NPA”) with five accredited investors (“Investors”), pursuant to which the Investors purchased convertible promissory notes in the aggregate principal amount of $1,800,000 (the “Notes”), for aggregate proceeds of $1,800,000. The Company may hold additional closings, but there is no g…

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

of Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Entry into a Material Definitive Agreement. As disclosed in the Current Report on Form 8-K that we filed on December 23, 2022, we entered into subscription agreements (the “Subscription Agreement”) with certain accredited investors, pursuant to which we issued an aggregate of 517,0000 shares of our common stock, par value $0.0001 per share, at a per share purchase price of $3.00, for aggregate gross proceeds of $1,551,000 (the “Offering”). On January 10, 2023, we held a second close of the Of…

Unregistered Sales of Equity Securities. The information contained above under Item 1.01, to the extent applicable, is hereby incorporated by reference herein. Based in part upon the representations of the Investors in the Subscription Agreement, the offering and sale of the shares of common stock was made in reliance on the exemption afforded by Section 4(a)(2) of the Securities Act and Rule 506 of Regulation D under the Securities Act and corresponding provisions of state securities or “blu…

Entry into a Material Definitive Agreement. As disclosed in the Current Report on Form 8-K that we filed on December 23, 2022, we entered into subscription agreements (the “Subscription Agreement”) with certain accredited investors, pursuant to which we issued an aggregate of 517,0000 shares of our common stock, par value $0.0001 per share, at a per share purchase price of $3.00, for aggregate gross proceeds of $1,551,000 (the “Offering”). On January 10, 2023, we held a second close of the Of…

Unregistered Sales of Equity Securities. The information contained above under Item 1.01, to the extent applicable, is hereby incorporated by reference herein. Based in part upon the representations of the Investors in the Subscription Agreement, the offering and sale of the shares of common stock was made in reliance on the exemption afforded by Section 4(a)(2) of the Securities Act and Rule 506 of Regulation D under the Securities Act and corresponding provisions of state securities or “blu…

Unregistered Sales of Equity Securities. The information contained above under Item 1.01, to the extent applicable, is hereby incorporated by reference herein. Based in part upon the representations of the Investors in the Subscription Agreement, the offering and sale of the shares of common stock was made in reliance on the exemption afforded by Section 4(a)(2) of the Securities Act and Rule 506 of Regulation D under the Securities Act and corresponding provisions of state securities or “blu…