Equity Transactions | 8. Equity Transactions Issuance of common stock for cash On August 31, 2022, the Company entered into a Controlled Equity Offering Sales Agreement (the “Sales Agreement”) with Cantor Fitzgerald & Co. and B. Riley Securities, Inc. (collectively, the “Agents”), pursuant to which the Company may issue and sell from time-to-time shares of the Company’s common stock through the Agents, subject to the terms and conditions of the Sales Agreement. On April 6, 2023, the Company and B. Riley Securities, Inc. mutually agreed to terminate B. Riley Securities, Inc.’s role as a sales agent under the Sales Agreement. During the three months ended December 31, 2023, the Company sold 290,090 7.4 3% 258,000 333,310 9.3 3% 377,000 2,143 6,400 3% 200 On September 25, 2024, the Company closed a best efforts public offering (the “September 2024 Offering”) of 1,360,800 0.0001 600,000 1,960,800 1.53 The September Common Warrants have an exercise price of $ 1.53 3.0 98,040 125% In October 2024, the Company closed three registered direct offerings totaling 8,256,000 0.0001 7,110,000 1.50 2.83 . The October Common Warrants have exercise prices ranging from $ 1.37 2.12 15.9 2.5 1.88 3.54 During the three months ended December 31, 2024, 1,896,300 1.53 2.9 335,000 6,667 4,214 Issuance of common stock for services On August 12, 2024, the Company awarded 15,000 2.23 33,450 Stock Options The following table summarizes the activity relating to the Company’s stock options for the six months ended December 31, 2024: Schedule of summarizes the activity relating to the Company’s stock options Options Weighted-Average Weighted Remaining Aggregate Intrinsic Outstanding at June 30, 2024 518,076 $ 54.11 6.1 $ - Options Granted 490,261 2.40 7.1 - Options Expired (31,736 ) 71.34 - - Options Canceled (8,790 ) 17.01 - - Outstanding at December 31, 2024 967,811 $ 27.69 6.4 $ 32,196 Exercisable at December 31, 2024 409,987 $ 48.46 5.6 $ 10,732 The fair value of each option on the date of grant is estimated using the Black-Scholes option pricing model. The pricing model reflects the following weighted-average assumptions for the six months ended December 31, 2024 and 2023: Schedule of assumptions used December 31, 2024 December 31, 2023 Expected life of options (in years) 4 5 Expected volatility 93.44% 87.11% Risk free interest rate 4.34% 4.80% Dividend Yield 0% 0% On December 20, 2024, the Company issued to employees and directors stock options to purchase 208,902 113,055 1.90 1.20 1.43 The Company recorded stock-based compensation expense relating to the vesting of stock options of approximately $ 385,000 620,000 504,000 1.4 Restricted stock units: On November 20, 2024, the Company issued equity awards as part of the board of directors’ annual compensation. Two directors received 66,900 3.36 168,300 3.36 3,410 Additionally, during the three months ended December 31, 2024, 397 The following table summarizes the unvested restricted stock units outstanding at June 30, 2024 and December 31, 2024: Schedule of unvested of restricted stock units Number of Shares Weighted Average Grant Unvested at June 30, 2024 40,291 $ 44.59 Issued 66,900 3.36 Vested (15,291 ) 47.33 Canceled (2,913 ) 36.45 Unvested at December 31, 2024 88,987 $ 13.41 The total stock-based compensation expense from restricted stock units for the three months ended December 31, 2024 and 2023 was approximately $ 266,000 303,000 567,000 684,000 There were 8,080 Stock Warrants The following table summarizes the warrants activity during the six months ended December 31, 2024: Summary of warrants activity Number of Shares Weighted Average Exercise Price Weighted Average Remaining Life Aggregate Intrinsic Value Outstanding and exercisable at June 30, 2024 1,932,029 $ 14.03 4.0 $ - Granted 10,181,640 1.65 4.8 - Exercised (2,502,967 ) 1.53 - - Expired (9,867 ) 22.50 - - Outstanding and exercisable at December 31, 2024 9,600,835 $ 3.50 4.6 $ 3,322,376 The table below shows the expiration of the warrants outstanding as of December 31, 2024: Schedule of warrants outstanding Number of Warrants Expiring June 30, 2025 271 2026 3,518 2027 36,100 2028 727,273 2029 1,155,000 2030 7,678,673 Total outstanding warrants 9,600,835 |