Company: INTS
Filing Date: 2025-09-09
Form Type: DEF 14A
Source: 0001567264-25-000090
Chunk: 0

Company: INTENSITY THERAPEUTICS, INC.
Filing Date: 2025-09-09
Form: DEF 14A
Chunk 0
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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### WASHINGTON, D.C. 20549

#### SCHEDULE 14A
<div align='center'>Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

(Amendment No. )</div>

Filed by the Registrant [X]

Filed by a Party other than the Registrant [ ]

Check the appropriate box:

| [ ] |     | Preliminary Proxy Statement                                                     |
| [ ] |     | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| [X] |     | Definitive Proxy Statement                                                      |
| [ ] |     | Definitive Additional Materials                                                 |
| [ ] |     | Soliciting Material Under §240.14a-12                                           |

| Intensity Therapeutics, Inc.                     |
| (Name of Registrant as Specified In Its Charter) |

| N/A                                                                      |
| (Name of Person(s) Filing Proxy Statement, if other than the Registrant) |

Payment of Filing Fee (Check all boxes that apply):

| [X] |     | No fee required                                                                                     |
| [ ] |     | Fee paid previously with preliminary materials                                                      |
| [ ] |     | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11 |

#### Intensity Therapeutics, Inc.

#### 1 Enterprise Drive, Suite 430

#### Shelton, CT 06484

#### September 9, 2025
To Our Stockholders:

You are cordially invited to attend a special meeting of stockholders (the “Special Meeting”) of Intensity Therapeutics, Inc., a Delaware corporation (the “Company”), to be held on October 22, 2025, beginning at 10:30a.m. Eastern time. We have decided to hold the Special Meeting virtually via live audio webcast on the internet. We believe hosting a virtual meeting enables greater stockholder attendance and participation from any location around the world, improves meeting efficiency and our ability to communicate effectively with our stockholders, and reduces the cost and environmental impact of the Special Meeting. You will be able to attend the Special Meeting, vote, and submit your questions during the Special Meeting by visiting www.virtualshareholdermeeting.com/INTS2025SM. You will not be able to attend the Special Meeting