PDS Biotechnology Corporation Announces Closing of Approximately $52 Million Public Offering and Full Exercise of Underwriter's Option to Purchase Additional Shares

PDS Biotechnology Corporation (Nasdaq: PDSB) ("PDS Biotechnology" or the "Company"), a clinical-stage immunotherapy company developing a pipeline of novel cancer therapies based on the Company's proprietary Versamune® T-cell activating technology, today announced the closing of its previously announced underwritten public offering of 6,088,235 shares of common stock (inclusive of the 794,117 shares that were sold pursuant to the underwriter's full exercise of its option to purchase additional shares of common stock) at a public offering price of $8.50 per share. Certain insiders, including certain members of the Company's board of directors and executive officers, purchased shares of PDS Biotech common stock in the offering.

The gross proceeds to PDS Biotech from this offering, before deducting underwriting discounts, commissions and other offering expenses were approximately $51.7 million.

Cantor Fitzgerald & Co. acted as the sole book-running manager for the offering.

The shares of common stock described above were offered by the Company pursuant to a registration statement on Form S-3 (File No. 333-240011) previously filed with the U.S. Securities and Exchange Commission ("SEC") on July 22, 2020 and declared effective on July 31, 2020, and the accompanying prospectus contained therein. The offering of the shares of common stock was made by means of a prospectus, including a prospectus supplement, forming a part of the effective registration statement. 

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

About PDS Biotechnology

PDS Biotech is a clinical-stage immunotherapy company developing a growing pipeline of novel cancer therapies based on the Company's proprietary Versamune® T-cell activating technology platform. Our Versamune®-based products overcome the limitations of current immunotherapy by inducing in vivo, large quantities of high-quality, highly potent polyfunctional tumor specific CD4+ helper and CD8+ killer T-cells. PDS Biotech has developed multiple therapies, based on combinations of Versamune® and disease-specific antigens, designed to train the immune system to better recognize diseased cells and effectively attack and destroy them. Our immuno-oncology product candidates are initially being studied in combination therapy to potentially enhance efficacy without compounding toxicity across a range of cancer types. The company's lead investigational cancer immunotherapy product PDS0101 is currently in Phase 2 clinical studies in HPV-associated cancers. The company's pipeline products address various cancers including breast, colon, lung, prostate and ovarian cancers. 

About PDS0101

PDS Biotech's lead candidate, PDS0101, combines the utility of the Versamune® platform with targeted antigens in HPV-expressing cancers.  In partnership with Merck & Co., PDS Biotech is evaluating a combination of PDS0101 and KEYTRUDA® in a Phase 2 study in first-line treatment of recurrent or metastatic head and neck cancer. PDS Biotech is also conducting two additional Phase 2 studies in advanced HPV-associated cancers and advanced localized cervical cancer with the National Cancer Institute (NCI) and The University of Texas MD Anderson Cancer Center, respectively.

About PDS0102

PDS0102 combines the utility of the Versamune® platform with the proprietary T-cell receptor gamma alternate reading frame protein (TARP), a tumor antigen identified by the National Cancer Institute (NCI) which is strongly associated with prostate cancer, breast cancer and AML. The product is in late-stage clinical development and anticipated to enter human clinical trials in 2022.

About PDS0103

PDS0103 combines the utility of the Versamune® platform with novel and proprietary highly immunogenic agonist epitopes of mucin-1 (MUC1) oncogenic C-terminal region. MUC1 is highly expressed in multiple tumor types and has been shown to be associated with drug resistance and poor disease prognosis. The product is in late-stage clinical development as part of a collaborative research and development agreement with the National Cancer Institute and anticipated to enter human clinical trials in 2022.