Phio Pharmaceuticals Announces Closing of $14.0 Million Private Placement Priced At-the-Market

MARLBOROUGH, Mass., Jan. 25, 2021 /PRNewswire/ -- Phio Pharmaceuticals Corp. (Nasdaq: PHIO), a biotechnology company developing the next generation of immuno-oncology therapeutics based on its proprietary self-delivering RNAi (INTASYL™) therapeutic platform, today announced the closing of its previously announced private placement of 4,560,928 shares of its common stock (or common stock equivalents in lieu thereof) and warrants to purchase up to an aggregate of 3,420,696 shares of common stock, at purchase price of $3.07 per share and associated warrant, that was priced at-the-market under Nasdaq rules and resulted in gross proceeds to the Company of approximately $14.0 million before the deduction of placement agent fees and expenses and offering expenses payable by the Company.

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H.C. Wainwright & Co. acted as the exclusive placement agent for the offering.

The warrants have an exercise price of $3.00 per share, are exercisable immediately and have a term of five and one-half years.

The Company intends to use the net proceeds from the offering for the development of its immuno-oncology programs, other research and development activities and for general working capital needs.

The offer and sale of the foregoing securities were made in a transaction not involving a public offering and have not been registered under the Securities Act of 1933, as amended (the "Securities Act"), or applicable state securities laws. Accordingly, the securities may not be reoffered or resold in the United States except pursuant to an effective registration statement or an applicable exemption from the registration requirements of the Securities Act and such applicable state securities laws.

Under an agreement with the investors, the Company is required to file an initial registration statement with the Securities and Exchange Commission covering the resale of the shares of common stock to be issued to the investors no later than February 1, 2021 and to use its best efforts to have the registration statement declared effective as promptly as practical thereafter, and in any event no later than April 21, 2021 in the event of a "full review" by the Securities and Exchange Commission.

This press release does not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of the securities in any state in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of such state.

About Phio Pharmaceuticals Corp.

Phio Pharmaceuticals Corp. (Nasdaq: PHIO) is a biotechnology company developing the next generation of immuno-oncology therapeutics based on its self-delivering RNAi (INTASYL™) therapeutic platform. The Company's efforts are focused on silencing tumor-induced suppression of the immune system through its proprietary INTASYL platform with utility in immune cells and the tumor micro-environment. Our goal is to develop powerful INTASYL therapeutic compounds that can weaponize immune effector cells to overcome tumor immune escape, thereby providing patients a powerful new treatment option that goes beyond current treatment modalities. For additional information, visit the Company's website, www.phiopharma.com.

Forward Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are neither historical facts nor assurances of future performance. All statements other than statements of historical fact contained in this press release are forward-looking statements including, without limitation, the intended use of net proceeds from the private placement. These statements are based only on our current beliefs, expectations and assumptions regarding the impact to our business and operations by the recent coronavirus outbreak, results from our preclinical and clinical activities, the development of our product candidates, the ability of obtain future financing, the future of our business, future plans and strategies, projections, anticipated events and trends, the economy and other future conditions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of our control. Our actual results may differ materially from those indicated in the forward-looking statements as a result of a number of important factors, including, but not limited to, market and other conditions and those identified in our Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q under the caption "Risk Factors" and in other filings the Company periodically makes with the SEC. Readers are urged to review these risk factors and to not act in reliance on any forward-looking statements, as actual results may differ from those contemplated by our forward-looking statements. Phio does not undertake to update forward-looking statements to reflect a change in its views, events or circumstances that occur after the date of this release, except as required by law.

Contact Phio Pharmaceuticals Corp.[email protected]

Investor ContactAshley R. RobinsonLifeSci Advisors[email protected]

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SOURCE Phio Pharmaceuticals Corp.