Company: INTS
Filing Date: 2025-04-24
Form Type: S-1/A
Source: 0001628280-25-019491
Chunk: 63

Company: INTENSITY THERAPEUTICS, INC.
Filing Date: 2025-04-24
Form: S-1/A
Chunk 63
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intensitytherapeutics.com/. The information contained in, or that can be accessed through, our website is not incorporated by reference in, and is not part of, this prospectus or any accompanying prospectus supplement.

In accordance with Rule 412 of the Securities Act, any statement contained in a document incorporated by reference herein shall be deemed modified or superseded to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement.

You should rely only on information contained in, or incorporated by reference into, this prospectus and any prospectus supplement. We have not authorized anyone to provide you with information different from that contained in this prospectus or incorporated by reference into this prospectus. We are not making offers to sell the securities in any jurisdiction in which such an offer or solicitation is not authorized or in which the person making such offer or solicitation is not qualified to do so or to anyone to whom it is unlawful to make such an offer or solicitation.

<div align='center'>40</div>

#### Up to 2,307,692 Shares of Common Stock
<div align='center'>Up to 2,307,692 Series B-1 Common Warrants to Purchase Up to 2,307,692 Shares of Common Stock

Up to 2,307,692 Series B-2 Common Warrants to Purchase Up to 2,307,692 Shares of Common Stock

Up to 2,307,692 Pre-Funded Warrants to Purchase Up to 2,307,692 Shares of Common Stock

Up to 2,307,692 Shares of Common Stock Underlying the Pre-Funded Warrants

Up to 4,615,384 Shares of Common Stock Underlying the Series B-1 Common Warrants and Series B-2 Common Warrants</div>

### PROSPECTUS
<div align='center'>Lead Placement Agent</div>

| A.G.P. |

<div align='center'>Co-Placement Agent</div>

| Brookline Capital Markets,            
 a division of Arcadia Securities, LLC |

<div align='center'>, 2025</div>

# PART II

### INFORMATION NOT REQUIRED IN PROSPECTUS

## Item 13. Other Expenses of Issuance and Distribution
The following table sets forth all expenses to be paid by the registrant, other than any estimated placement agents’ fee and reimbursements, in connection with the offering and sale of the shares