On July 8, 2022, we entered into a Common Stock Purchase Agreement (the “Purchase Agreement” or "ELOC") and a Registration Rights Agreement (the “Registration Rights Agreement”) with B. Riley Principal Capital II, LLC (“B. Riley”). Pursuant to the Purchase Agreement, subject to certain limitations and conditions, the Company has the right, but not the obligation, to sell to B. Riley up to $15,000,000 of shares of the Company’s common stock, par value $0.001 per share (“Common Stock”), from time to time. Sales of Common Stock to B. Riley under the Purchase Agreement, and the timing of any such sales, are solely at the Company’s option, and the Company is under no obligation to sell any securities to B. Riley under the Purchase Agreement. Pursuant to the Registration Rights Agreement, the Company agreed to file a registration statement with the Securities Exchange Commission (the “SEC”) to register under the Securities Act of 1933, as amended (the “Securities Act”) the resale by B. Riley of up to 450,000 shares of Common Stock that the Company may issue or elect, in the Company’s sole discretion, to issue and sell to B. Riley, from time to time under the Purchase Agreement. Use of the ELOC is subject to restrictions based on the price and trading volume of our stock, which limits its availability to the Company as a significant source of capital.

During the three months ended March 31, 2024, the Company had no sales of shares of common stock. During the three months ended March 31, 2023, the Company sold 7,429 shares of common stock under the ELOC at an average price of $7.20 per share, net of fees of approximately $0.40 per share. The net proceeds from this sale were $53,453.