Mosaic ImmunoEngineering Inc.

INDEX

Unless the context otherwise requires, references to the “Company,” the “combined company,” “Mosaic,” “we,” “our,” or “us” in this Quarterly Report on Form 10-Q refer to Mosaic ImmunoEngineering, Inc. and its subsidiaries.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q (“Report” or Quarterly Report”), including all documents incorporated by reference herein, includes certain statements constituting “forward-looking” statements within the meaning of Section 27A of the Securities Act, Section 21E of the Exchange Act and the Private Securities Litigation Reform Act of 1995, including statements concerning our beliefs, plans, objectives, goals, expectations, anticipations, estimates, intentions, operations, future results and prospects, and we rely on the “safe harbor” provisions in those laws. We are including this statement for the express purpose of availing ourselves of the protections of such safe harbors with respect to all such forward-looking statements. In this Report, the words “anticipates,” “believes,” “expects,” “intends,” “future,” “estimates,” “may,” “could,” “should,” “would,” “will,” “shall,” “propose,” “continue,” “predict,” “plan” or the negative versions of these terms and other similar expressions are generally intended to identify certain of these forward-looking statements.

These forward-looking statements are subject to certain risks and uncertainties, and actual results may differ materially from those in the forward-looking statements. Factors that could cause or contribute to these differences include those discussed in “Risk Factors,” in Part II, Item 1A of this Report as well as information provided elsewhere in this Report and our Annual Report on Form 10-K for the year ended December 31, 2025, which was filed with the Securities and Exchange Commission (the SEC) on April 15, 2026. You should carefully consider that information before you make an investment decision.

You should not place undue reliance on these types of forward-looking statements, which speak only as of the date that they were made. These forward-looking statements are based on the beliefs and assumptions of the Company’s management based on information currently available to management and should be considered in connection with any written or oral forward-looking statements that the Company may issue in the future as well as other cautionary statements the Company has made and may make. Except as required by law, the Company does not undertake any obligation to release publicly any revisions to these forward-looking statements after completion of the filing of this Report to reflect later events or circumstances or the occurrence of unanticipated events.

The discussion of the Company’s financial condition and results of operations should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 filed with the SEC on April 15, 2026 and the unaudited condensed consolidated financial statements and the related notes thereto included in this Report.