v3.25.4
Note 2 - Convertible Notes Payable
9 Months Ended
Dec. 31, 2025
Notes to Financial Statements  
Debt Disclosure [Text Block]

Note 2  Convertible Notes Payable

 

On September 9, 2023, the Company's Board authorized an offering of up to $2.0 million in unsecured, non-interest-bearing convertible promissory notes (the “Notes”) and accompanying warrants (the “Bridge Financing Warrants”) (collectively, the “Bridge Offering”) which Notes were to mature on December 31, 2025. The Notes provided that, on the closing date of the IPO, the outstanding principal would be automatically converted into common stock at the conversion price of $40.00. Each dollar in principal amount of Notes purchased was accompanied by a five-year Bridge Financing Warrant to purchase approximately 0.0125 shares of common stock with an exercise price of $20.00 per share. The Company recorded the Bridge Financing Warrants as a discount to the Notes.

 

The Bridge Financing Warrants can be exercised from the date of Notes issuance through the five-year anniversary of the issuance of the Notes. The Note holders were not permitted to convert their Notes when the holders or any of their affiliates would beneficially own in excess of 4.99% of the Company’s common stock after such conversion.

 

The Company received proceeds of $2.0 million of Notes from the Bridge Offering. The Company’s effective interest rate for the Notes was 15.3% due to the amortization of the discount stemming from the issuance of the Bridge Financing Warrants. On January 26, 2024, the Company consummated its initial public offering (“IPO”). In connection with the closing of the IPO, a portion of the Notes were converted into 16,750 shares of common stock. Upon the closing of the IPO, certain Notes that were to be automatically converted according to their terms into common stock were not converted due to restrictions on the holders of the Notes or any of their affiliates beneficially owning in excess of 4.99% of the Company's common stock after such conversion. The remaining portion of the Notes were converted into 33,250 shares of common stock in March 2025.

 

Warrants - Convertible Promissory Notes

 

From  September to December 2023, the Company issued the Notes with the detachable Bridge Financing Warrants. The Company utilized a Monte Carlo simulation model to determine the fair value of each Bridge Financing Warrant. The key inputs to the Monte Carlo simulation used to determine the fair value of each warrant include, the Company’s stock price fair value which was determined through a back solve calculation such that the stock price results in the average total value of the Notes and the Bridge Financing Warrants being equal to the cash proceeds received, volatility based on a selection of publicly held peer companies of 101.88%, expected term of 5 years, risk free rate of 4.40%, discount rate of 20.00% and a discount for lack of marketability of 15.77%.

 

During the three and nine months ended December 31, 2025, the Company recorded no interest expense. During the three and nine months ended December 31, 2024, the Company recorded less than $0.1 million and $0.1 million, respectively, in interest expense related to the amortization of the debt discount.

 

The following table presents a summary of activity for the Bridge Financing Warrants issued in connection with the Notes:

 

      

Weighted-Average

 
      

Exercise Price

 
  

Warrants

  

Per Share

 
         

Outstanding and exercisable, March 31, 2025

  25,003  $20.00 
         

Outstanding and exercisable, December 31, 2025

  25,003  $20.00