Company: IMRX
Filing Date: 2025-08-13
Form Type: S-3
Source: 0001104659-25-077655
Chunk: 55

Company: Immuneering Corp
Filing Date: 2025-08-13
Form: S-3
Chunk 55
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, 2024 have been audited by RSM US LLP, an independent registered public accounting firm, as stated in their report thereon (which report expresses an unqualified opinion and includes an explanatory paragraph relating to the Company’s ability to continue as a going concern), incorporated herein by reference, and have been incorporated in this Prospectus Supplement and Registration Statement in reliance upon such report and upon the authority of such firm as experts in accounting and auditing.

<div align='center'>S-15</div>

TABLE OF CONTENTS

#### Up to $100,000,000

#### Class A Common Stock

### PROSPECTUS SUPPLEMENT

#### Piper Sandler

#### , 2025
TABLE OF CONTENTS

PART II INFORMATION NOT REQUIRED IN PROSPECTUS Item 14. Other Expenses of Issuance and Distribution The following is an estimate of the expenses (all of which are to be paid by the registrant) that we may incur in connection with the securities being registered hereby.

| ​ | SEC registration fee                      | ​ | ​ | ​ | $ | 22,980.77(1) | ​ | ​ |
| ​ | FINRA filing fee                          | ​ | ​ | ​ | ​ | ​(2)         | ​ | ​ |
| ​ | Printing expenses                         | ​ | ​ | ​ | ​ | ​(2)         | ​ | ​ |
| ​ | Legal fees and expenses                   | ​ | ​ | ​ | ​ | ​(2)         | ​ | ​ |
| ​ | Accounting fees and expenses              | ​ | ​ | ​ | ​ | ​(2)         | ​ | ​ |
| ​ | Blue Sky, qualification fees and expenses | ​ | ​ | ​ | ​ | ​(2)         | ​ | ​ |
| ​ | Transfer agent fees and expenses          | ​ | ​ | ​ | ​ | ​(2)         | ​ | ​ |
| ​ | Trustee fees and expenses                 | ​ | ​ | ​ | ​ | ​(2)         | ​ | ​ |
| ​ | Warrant agent fees and expenses           | ​ | ​ | ​ | ​ | ​(2)         | ​ | ​ |
| ​ | Miscellaneous                             | ​ | ​ | ​ | ​ | ​(2)         | ​ | ​ |
| ​ | Total                                     | ​ | ​ | ​ | $ | ​(2)         | ​ | ​ |

(1) The $300,000,000 of securities