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Stockholders' Equity
 9 Months Ended
Sep. 30, 2024
Stockholders' Equity [Abstract]  
Stockholders' equity

6.

Stockholders’ equity

Common Stock Warrants

We had common stock warrants exercisable for 103,349 shares of common stock upon conversion at a weighted average exercise price of $12.92 per share and 716,131 shares of common stock upon conversion at a weighted average exercise price of $2.39 per share outstanding at September 30, 2024 and December 31, 2023, respectively. Johnson & Johnson Innovation – JJDC, Inc. had common stock warrants exercisable for 607,725 shares of our common stock with an exercise price of $0.16 per share that were all exercised through a net exercise transaction for 604,000 shares of common stock during the nine months ended September 30, 2024.

At-the-Market (“ATM”) Offering

In January 2024, we commenced an ATM offering, which allows us to issue and sell shares of our common stock having an aggregate offering price of up to $50.0 million. We issued 2,382,139 shares of common stock for gross proceeds of $21.0 million under the ATM offering during the nine months ended September 30, 2024. We have remaining capacity to issue and sell up to approximately $29.0 million of additional shares of common stock under this ATM offering.