Company: INTS
Filing Date: 2025-06-12
Form Type: 424B5
Source: 0001628280-25-031040
Chunk: 54

Company: INTENSITY THERAPEUTICS, INC.
Filing Date: 2025-06-12
Form: 424B5
Chunk 54
---
 proceeds received from the sale of any securities. Pending the use of the net proceeds, we may use the net proceeds to invest in investment-grade, interest-bearing securities.

<div align='center'>8</div>

### THE SECURITIES WE MAY OFFER
The descriptions of the securities contained in this prospectus, together with the applicable prospectus supplements, summarize all the material terms and provisions of the various types of securities that we may offer. We will describe in the applicable prospectus supplement relating to any securities the particular terms of the securities offered by that prospectus supplement. The terms of the securities may differ from the terms we have summarized below, and will be indicated as such, if applicable, in the applicable prospectus supplement. We will also include in the prospectus supplement information, where applicable, about material United States federal income tax considerations relating to the securities, and the securities exchange, if any, on which the securities will be listed.

We may sell from time to time, in one or more offerings:

• common stock;

• preferred stock;

• debt securities;

• warrants to purchase any of the securities listed above; and

• units consisting of any combination of the securities listed above.

In this prospectus, we refer to the common stock, preferred stock, debt securities, warrants and units collectively as “securities.” The total dollar amount of all securities that we may sell will not exceed $150,000,000.

If we issue debt securities at a discount from their original stated principal amount, then, for purposes of calculating the total dollar amount of all securities issued under this prospectus, we will treat the initial offering price of the debt securities as the total original principal amount of the debt securities.

This prospectus may not be used to consummate a sale of securities unless it is accompanied by a prospectus supplement.

<div align='center'>9</div>

### DESCRIPTION OF CAPITAL STOCK
Our authorized capital stock consists of 135,000,000 shares of common stock, $0.0001 par value per share, and 15,000,000 shares of preferred stock, $0.0001 par value per share. A description of the material terms and provisions of our Sixth Amended and Restated Certificate of Incorporation (the “Charter”) and Second Amended and Restated Bylaws (the “Bylaws”) affecting the rights of holders of our capital stock is set forth below. The description is intended as a summary and is qualified in its entirety by reference to our Charter and Bylaws.

#### Common