7. Warrants

There were no warrants issued or exercised during the three months ended March 31, 2026. During the three months ended March 31, 2026, warrants to purchase up to 65,003 shares of common stock at a weighted-average exercise price of $49.99 per share expired. The following represents a summary of the warrants outstanding and exercisable at March 31, 2026, all of which are equity-classified:

 Schedule of Warrants Outstanding and Exercisable