shares of its common stock under such agreement for aggregate gross proceeds of $75,000.
On January 19, 2023, the Company entered into an Open Market Sale Agreement with Jefferies (the “Open Market Sale Agreement”), pursuant to which the Company may issue and sell, from time to time, shares its common stock under an at-the-market equity offering. The Company filed a prospectus supplement relating to the Open Market Sale Agreement under its 2020 Shelf Registration (the “2020 Shelf ATM Prospectus Supplement”), pursuant to which the Company could offer and sell shares of common stock having an aggregate offering price of up to $40,000 under the Open Market Sale Agreement. From January 19, 2023 to May 11, 2023, the Company sold 229,378 shares of its common stock under its at-the-market offering pursuant to the Open Market Sale Agreement under the 2020 Shelf ATM Prospectus Supplement, resulting in net proceeds of $4,899.
On March 3, 2023, the Company filed a shelf registration statement on Form S-3 with the SEC, which was declared effective on May 11, 2023 (the “2023 Shelf Registration”). Under the 2023 Shelf Registration, the Company may offer and sell up to $350,000 of a variety of securities including common stock, preferred stock, warrants, depositary shares, debt securities, subscription rights or units after such time as the shelf registration statement is declared effective by the SEC. In accordance with the terms of the Open Market Sale Agreement, the Company may issue and sell, from time to time, up to $40,000 of its common stock in an at-the-market equity offering through Jefferies, as sales agent. Upon effectiveness of the 2023 Shelf Registration, the Company ceased any further offers or sales of its common stock pursuant to the 2020 Shelf ATM Prospectus Supplement and the 2020 Shelf Registration.
During the nine months ended September 30, 2023, the Company sold an aggregate of 190,000 shares of its common stock under the Open Market Sale Agreement under the 2023 Shelf Registration for total net proceeds of $3,073, none of which were sold during the three months ended September 30, 2023. During the nine months ended September 30, 2023, the Company sold an aggregate of 665,265 shares of its common stock pursuant to (1) the Amended and Restated Sales Agreement and the Open Market Sale Agreement under the 2020 Shelf Registration and (2) the Open Market Sale Agreement under the 2023 Shelf Registration, for total net proceeds of $17,966.
During the nine months ended September 30, 2024, the Company sold an aggregate of 387,500 shares of its common stock under the Open Market Sale Agreement under the 2023 Shelf Registration for total net proceeds of $2,471, none of which were sold during the three months ended September 30, 2024.
Private Placements
On December 21, 2023, the Company entered into a Securities Purchase Agreement (the “2023 Securities Purchase Agreement”) with certain institutional investors named therein, pursuant to which the Company agreed to issue and sell, in a private placement priced at-the-market under Nasdaq rules, shares of Series F Convertible Non-Redeemable Preferred Stock, par value $0.001 per share, of the Company (the “Series F Preferred Stock”), for aggregate gross proceeds of approximately $2,000 (the “2023 Private Placement”). Pursuant to the 2023 Securities Purchase Agreement, the Company issued and sold to the purchasers at the closing of the 2023 Private Placement, 2,928 shares of Series F Preferred Stock, at a price per preferred share equal to $683.00. Costs incurred in connection with the 2023 Private Placement were $35, which were recorded as a reduction to additional paid-in capital.
On March 25, 2024, the Company entered into a Securities Purchase Agreement (the “March 2024 Securities Purchase Agreement”) with certain institutional investors named therein, pursuant to which the Company agreed to issue and sell, in a private placement priced at-the-market under Nasdaq rules, shares of Series G Convertible Non-Redeemable Preferred Stock, par value $0.001 per share, of the Company (the “Series G Preferred Stock”), for aggregate gross proceeds of approximately $8,600 (the “March 2024 Private Placement”). Pursuant to the March 2024 Securities Purchase Agreement, the Company issued and sold to the purchasers at the closing of the March 2024 Private Placement, 10,901 shares of Series G Preferred Stock, at a price per preferred share equal to $788.90. Costs incurred in