Includes up-front issuance of preferred stock for $2.5 million and secured 

promissory notes for $7.72 million

Uniquely structured, flexible financing supports IMUNON's Highly Anticipated Phase 3 OVATION 3 Study of IMNN-001 in advanced ovarian cancer

LAWRENCEVILLE, N.J., June 04, 2026 (GLOBE NEWSWIRE) -- IMUNON, Inc. (NASDAQ:IMNN), a clinical-stage company in Phase 3 development with its DNA-mediated immunotherapy, today announced that the Company has entered into definitive agreements with expected aggregate gross proceeds to the Company in the amount of $10 million. The transaction includes 250 shares of non-redeemable, non-convertible preferred stock for $2.5 million and two secured promissory notes in the principal amounts of $2.72 million and $5.0 million. The promissory notes accumulate interest at a rate of 8% and 5%, respectively, per annum and mature 18 months after the issuance date. Interest will be partially offset with interest earned via bank deposit. IMUNON intends to use the net proceeds to support continued enrollment of the pivotal Phase 3 OVATION 3 clinical trial in patients newly diagnosed with advanced ovarian cancer.

IMUNON recently reported updated Phase 2 clinical data showing continued improvement in median overall survival (OS) in women with newly diagnosed advanced ovarian cancer treated with its investigational therapy IMNN-001 in combination with standard of care (SoC) chemotherapy. The increase in median OS rose from the previously reported 11.1 months to 14.7 months following final data analysis. Patients treated with PARP inhibitors in addition to IMNN-001 and SoC chemotherapy demonstrated median increase in OS of 24.2 months compared to SoC chemotherapy alone.