Soligenix Inc. closed its underwritten public offering of 1,670,000 common shares and warrants to buy up to 2,087,500 common shares at a combined offering price of $3.16.

The underwriters partially exercised the overallotment to buy an additional 282,505 warrants. The warrants have a per-share exercise price of $3.95, are exercisable immediately and will expire five years from the date of issuance.

Gross proceeds to Soligenix from this offering are about $5.3 million before deducting underwriting discounts and commissions and other estimated offering expenses.

Aegis Capital Corp. acted as the sole book-running manager and Maxim Group LLC acted as the co-manager for the offering.