Company: IMRX
Filing Date: 2025-09-08
Form Type: 424B3
Source: 0001104659-25-088317
Chunk: 8

Company: Immuneering Corp
Filing Date: 2025-09-08
Form: 424B3
Chunk 8
---
.

We will not receive any of the proceeds from the sale of Class A common stock being offered by any of the selling securityholders.

<div align='center'>7</div>

TABLE OF CONTENTS

### DESCRIPTION OF SECURITIES

#### General
The following description of our securities and certain provisions of our Amended and Restated Certificate of Incorporation, or Certificate of Incorporation, and Amended and Restated Bylaws, or Bylaws, are summaries and are qualified in their entirety by reference to the full text of our Certificate of Incorporation and our Bylaws, each of which has been publicly filed with the SEC. We encourage you to read our Certificate of Incorporation and our Bylaws and the applicable provisions of the Delaware General Corporation Law, or the DGCL, for additional information.

Our authorized capital stock consists of:

•

200,000,000 shares of Class A common stock, $0.001 par value per share;

•

20,000,000 shares of Class B common stock, $0.001 par value per share; and

•

10,000,000 shares of preferred stock, $0.001 par value per share.

#### Common Stock

#### Class A Common Stock
The holders of our Class A common stock are entitled to one vote for each share held on all matters submitted to a vote of the stockholders. The holders of our Class A common stock do not have any cumulative voting rights. Holders of our Class A common stock are entitled to receive ratably any dividends declared by our board of directors out of funds legally available for that purpose, subject to any preferential dividend rights of any outstanding preferred stock. Our Class A common stock has no preemptive rights, conversion rights or other subscription rights or redemption or sinking fund provisions.

In the event of our liquidation, dissolution or winding up, holders of our Class A common stock will be entitled to share ratably in all assets remaining after payment of all debts and other liabilities and any liquidation preference of any outstanding preferred stock.

Upon our dissolution or liquidation, after payment in full of all amounts required to be paid to creditors and to the holders of preferred stock having liquidation preferences, if any, the holders of shares of our Class A common stock will be entitled to receive pro rata our remaining assets available for distribution to stockholders after the payment of all of our debts and other liabilities, subject to the prior rights of any preferred stock then outstanding.

#### Class B Common Stock
The Class B common stock is identical to our Class A