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Source: SEC EDGAR Compiled 2026-09-14 08:28 UTC All 21 checks passing

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Mosaic ImmunoEngineering Inc.

CIK 836564 CPMV·Biological Products · All EDGAR filings ↗

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Late filing Filing comparison

Mosaic ImmunoEngineering Inc. told the SEC it could not file its quarterly report on time

Mosaic ImmunoEngineering, Inc., a Delaware corporation (the “Company”), was unable, without unreasonable effort or expense, to file its Quarterly Report on Form 10-Q for the quarter ended March 31, 2026 (the “Form 10-Q”) by the prescribed deadline of 5:30 p.m. EDT on May 15, 2026 because additional time, resources and effort are required to complete work related to the Company’s financial reporting and close procedures. The Company expects to file its Form 10-Q as soon as possible, but no later than the fifth calendar day following the prescribed due date.
Evidence
Days past due date
0
Other periodic reports filed
Yes
Routine
Yes
Severity
normal
Source
Form 12b-25 (notification of late filing)
Stated reason
Mosaic ImmunoEngineering, Inc., a Delaware corporation (the “Company”), was unable, without unreasonable effort or expense, to file its Quarterly Report on Form 10-Q for the quarter ended March 31, 2026 (the “Form 10-Q”) by the prescribed deadline of 5:30 p.m. EDT on May 15, 2026 because additional time, resources and effort are required to complete work related to the Company’s financial reporting and close procedures. The Company expects to file its Form 10-Q as soon as possible, but no later than the fifth calendar day following the prescribed due date.
Why
The company told the SEC it could not file a periodic report on time, using Form 12b-25.
Late filing elevated Filing comparison

Mosaic ImmunoEngineering Inc. told the SEC it could not file its annual report on time

Mosaic ImmunoEngineering, Inc., a Delaware corporation (the “Company”), was unable, without unreasonable effort or expense, to file its Annual Report on Form 10-K for the fiscal year ended December 31, 2025 (the “Form 10-K”) by the prescribed deadline because additional time, resources and effort are required to complete work related to the Company’s financial reporting and close procedures. The Company expects to file its Form 10-K as soon as possible, but no later than the fifteenth calendar day following the prescribed due date of the Form 10-K.
Evidence
Days past due date
0
Other periodic reports filed
Yes
Routine
No
Severity
elevated
Source
Form 12b-25 (notification of late filing)
Stated reason
Mosaic ImmunoEngineering, Inc., a Delaware corporation (the “Company”), was unable, without unreasonable effort or expense, to file its Annual Report on Form 10-K for the fiscal year ended December 31, 2025 (the “Form 10-K”) by the prescribed deadline because additional time, resources and effort are required to complete work related to the Company’s financial reporting and close procedures. The Company expects to file its Form 10-K as soon as possible, but no later than the fifteenth calendar day following the prescribed due date of the Form 10-K.
Why
The company told the SEC it could not file a periodic report on time, using Form 12b-25.