10. Subsequent Events

On October 24, 2024, we delivered notice to Lincoln Park terminating the common stock purchase agreement dated August 22, 2023, with Lincoln Park effective October 25, 2024.

On November 1, 2024, we filed a registration statement on Form S-3 pursuant to Rule 462(b) of the Securities Act (the “462(b) Registration Statement”) which increased the aggregate amount of securities we may offer under the existing shelf registration statement on Form S-3 (File No. 333-262461) (the “Original Registration Statement”) by a proposed additional aggregate offering price of approximately $12.4 million, which represents 20% of the maximum aggregate offering price of unsold securities under the Original Registration Statement. Additionally, on November 1, 2024, we entered into an Amended and Restated Equity Distribution Agreement with Canaccord, as representative of certain agents, pursuant to which we increased the aggregate amount of shares of our common stock that we may sell under our at-the-market facility to an aggregate offering price of approximately $171.5 million, which is comprised of approximately (i) $97.0 million of gross proceeds from prior sales of our common stock under the Equity Distribution Agreement, (ii) $23.0 million remaining as originally authorized under the Equity Distribution Agreement, (iii) $12.4 million as contemplated by the 462(b) Registration Statement, and (iv) a remainder of $39.1 million authorized to be sold from time to time pursuant to that certain Amendment No. 1 to Prospectus Supplement filed with the SEC on November 1, 2024.

From October 1, 2024 through November 8, 2024, we sold an additional 8,149,535 shares of our common stock under our equity distribution agreement with Canaccord, as amended, for aggregate gross proceeds of approximately $81.1 million. Transaction costs were approximately $2.0 million.