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STOCKHOLDERS' EQUITY
 3 Months Ended
Mar. 31, 2023
Equity [Abstract]  
STOCKHOLDERS' EQUITY STOCKHOLDERS' EQUITY
Common Stock Issuances
During the three months ended March 31, 2023, the Company sold 142,499 ATM shares under the Sales Agreement, with gross proceeds of $0.3 million.
On January 12, 2022, the Company issued 40,000 shares of the Company's common stock, valued at $0.5 million to purchase in-process research and development technology SP-3164, please refer to NOTE 2 for further discussion.
Warrants Exercised for Cash
The Company has five-year warrants outstanding that were issued in February 2020 and subsequently modified in December 2020 in connection with the issuance of additional inducement warrants. The warrants are exercisable at a price per share of $28.75. The inducement warrants expire on June 11, 2026, and are exercisable at a price per share of $29.55. The Company has 5.5 year warrants outstanding that were issued in April 2022, with an exercise price of $8.4975 per share. The warrants will be exercisable six months following the issuance date and will expire five and one-half years from the issuance date.
As of March 31, 2023 and 2022, approximately 597,512 and 317,329 warrants remain outstanding