Company: IMNN
Filing Date: 2025-06-13
Form Type: 424B3
Source: 0001641172-25-015119
Chunk: 0

Company: Imunon, Inc.
Filing Date: 2025-06-13
Form: 424B3
Chunk 0
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Filed Pursuant to Rule 424(b)(3)

Registration No. 333-287699

PROSPECTUS

<div align='center'>IMUNON, INC.

UP TO 22,027,780 SHARES OF COMMON STOCK</div>

This prospectus relates to the offer and resale, from time to time, by the selling securityholders named in this prospectus (the “ Selling Securityholders”) of up to an aggregate of 22,027,780 shares of common stock, par value $0.01 per share, of Imunon, Inc. (the “ Common Stock”), consisting of (i) 2,777,779 shares of Common Stock, (ii) up to 4,444,444 shares of Common Stock issuable upon the exercise of pre-funded warrants (the “ Pre-Funded Warrants”), (iii) up to 14,444,446 shares of Common Stock issuable upon the exercise of common warrants (the “ Common Warrants”), and (iv) 361,111 shares of Common Stock issuable upon the exercise of placement agent warrants (the “ Placement Agent Warrants” and, together with the Pre-Funded Warrants and the Common Warrants, the “ Warrants”).

The shares of Common Stock being registered for resale by the Selling Securityholders in the registration statement of which this prospectus forms a part were issued and sold pursuant to a private placement (the “ Private Placement”), which was priced at the market at a combined purchase price per share of Common Stock and accompanying Warrant of $0.45 and closed on May 27, 2025. The Common Warrants and Placement Agent Warrants will be exercisable upon receipt of Stockholder Approval (as defined below). We are filing the registration statement of which is prospectus is a part pursuant to the registration rights agreement (the “ Registration Rights Agreement”), dated as of May 23, 2025, entered into with the purchasers in the Private Placement. In addition, the Company issued to the placement agent for the Private Placement the Placement Agent Warrants to purchase up to an aggregate of 361,111 shares of Common Stock, at an exercise price equal to $0.5625 per share.

We will not receive any proceeds from the sale of the shares by the Selling Securityholders. Our registration of the shares of Common Stock covered by this prospectus does not mean that the Selling Securityholders will offer or sell any of the shares of Common Stock.

We will bear all costs, expenses and fees in connection