On November 16, 2021, we received $10.0 million in net proceeds from the issuance of the November 2021 Note, with a face amount of $10.2 million. The November 2021 Note bore interest at a rate of 9.5% per annum, was due to mature January 1, 2023 and included an original issue discount of $0.2 million. We may prepay all or a portion of the note at any time by paying 105% of the outstanding balance elected for pre-payment. On December 28, 2022, we prepaid the November 2021 Note in full by paying 105% of the outstanding balance. The total payment was $11.9 million, which included interest of $1.2 million and a prepayment fee of $0.6 million.
In November 2021, we issued in an underwritten public offering an aggregate of 46,000,000 shares of common stock at a purchase price per share of $1.25 for $54.0 million in net proceeds after payment of underwriter discounts and commissions and other underwriter offering costs. GMS Ventures purchased an aggregate of 16,000,000 shares of common stock in the public offering. In connection with the underwritten public offering, we issued the underwriter warrants to purchase up to an aggregate of 2,100,000 shares of common stock at an exercise price of $1.5625 per share, which warrants have a five-year term.
During the three months ended December 31, 2022, we sold 895,391 shares of common stock, and generated $1.1 million in gross proceeds from, the ATM Offering. The sales agent fees paid were immaterial. During the three months ended December 31, 2021, we sold 1,773,974 shares of common stock under the ATM Offering and generated $3.6 million in gross proceeds and we paid fees to the sales agent and other issuance costs of $0.1 million.
In December 2022, in a registered direct equity offering to certain institutional and accredited investors, including GMS Ventures, our largest stockholder, we issued 28,460,831 shares of common stock at a purchase price per share of $0.8784 for $24.0 million in net proceeds after payment of placement agent fees and other offering costs. GMS Ventures purchased an aggregate of 14,230,418 shares of common stock in the registered direct equity offering. In connection with the registered direct equity offering, we issued to M.S. Howells & Co., as placement agent for certain accredited investors in the offering, warrants to purchase up to an aggregate of 515,755 shares of common stock, which will be exercisable commencing on the one-year anniversary of the closing of the offering at an exercise price of $1.05 per share, which warrants have a three-year term.
On December 22, 2022, we entered into a Securities Purchase Agreement and issued an unsecured convertible promissory note with a face amount of $31.8 million, or the December 2022 Note, to Streeterville Capital, LLC, or the Lender, the current holder of our outstanding unsecured promissory note that was due to mature on January 1, 2023, or the November 2021 Note. The Note has an original issue discount of $1.8 million. We received gross proceeds of $30.0 million upon the closing on December 28, 2022, after deducting the Lender’s transaction costs in connection with the issuance. A portion of the proceeds from the December 2022 Note were used to repay in full the remaining outstanding principal and accrued interest on the November 2021 Note, which was cancelled upon repayment. The December 2022 Note bears interest at 9.5% per annum and matures on January 1, 2024. The December 2022 Note contains customary covenants, including a restriction on our ability to pledge certain of our assets, subject to certain exceptions, without the Lender’s consent. Beginning on April 1, 2023, the Lender will have the right to convert the December 2022 Note at an initial conversion price of $2.00 per share. The principal amount and conversion price of the December 2022 Note are subject to adjustment upon certain triggering events. See “Description of Indebtedness” below for additional detail.
We evaluated whether there are conditions or events, considered in the aggregate, that raise substantial doubt about our ability to continue as a going concern. As of December 31, 2022, we had an accumulated deficit of $427.6 million. In addition, $31.8 million of principal and accrued interest under an unsecured convertible promissory note, which bears interest compounding daily and mature January 1, 2024. As a result, there is substantial doubt about our ability to continue as a going concern. Our current cash resources of $52.3 million as of December 31, 2022 are expected to fund our operations through the anticipated approval of the ONS-5010 BLA expected in the third calendar quarter of 2023 and into the fourth calendar quarter of 2023.
Our future operations are highly dependent on a combination of factors, including (i) the timely and successful completion of additional financing discussed above; (ii) our ability to successfully begin marketing of our product candidates or complete revenue-generating partnerships with other companies; (iii) the success of our research and development; (iv) the development of competitive therapies by other biotechnology and pharmaceutical companies; and, ultimately, (v) regulatory approval and market acceptance of our proposed future products. Additionally, while the long-term economic impact of either the COVID-19 pandemic or the war between Ukraine and Russia is difficult to assess or predict, each of