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Equity Offerings (Tables)
3 Months Ended
Mar. 31, 2024
Equity Offerings  
Schedule of Black-Scholes Model Based on Assumptions

 

 

5/22/2020 Raise

 

 

8/3/20 Raise

 

 

Series B

 

 

Series C

 

Risk-free interest rate

 

 

4.06%

 

 

4.06%

 

 

3.60%

 

 

3.66%

Volatility

 

 

135.35%

 

 

132.55%

 

 

115.42%

 

 

127.65%

Expected dividend yield

 

 

0.00%

 

 

0.00%

 

 

0.00%

 

 

0.00%

Expected life (in years)

 

 

2.4

 

 

 

2.6

 

 

 

6.5

 

 

 

4.5

 

Risk-free interest rate

 

 

3.66%

Volatility

 

 

124.07%

Expected dividend yield

 

 

0.00%

Expected life (in years)

 

 

5.0

 

 

 

Series F

 

 

Series G

 

Risk-free interest rate

 

 

3.8%

 

 

3.4%

Volatility

 

 

80.0%

 

 

74.0%

Expected dividend yield

 

 

0.0%

 

 

0.0%

Expected life (in years)

 

 

2.0

 

 

 

6.0

 

Schedule of issuance of warrants

Number of shares

 

Exercise Price

 

Expiration

33,000

 

$31.25

 

5 years

31,000

 

$17.50

 

5 years

Schedule of Black-Scholes Model Based on Assumptions for placement fees

Value ( $ in

millions)

 

Expected Volatility

 

Risk-Free Interest

Rate

 

Expected Dividend

Yield

 

Expected Term

(years)

$0.4

 

93.25%

 

1.81%

 

0%

 

5.0

$0.2

 

96.70%

 

2.87%

 

0%

 

5.0

Schedule of Warrants

Warrants outstanding, December 31, 2022

 

 

1,150,658

 

Issued

 

 

10,329,794

 

Exercised

 

 

(331,608)

Expired

 

 

(106,707)

Warrants outstanding, December 31, 2023

 

 

11,042,137

 

Issued

 

 

 

Exercised

 

 

 

Expired

 

 

 

Warrants outstanding, March 31, 2024

 

 

11,042,137

 

Schedule of common stock warrants outstanding

Warrant Type

 

Warrants Outstanding

 

 

Exercise Price

 

 

Expiration Date

 

May 2020 Warrants

 

 

12,743

 

 

$562.50

 

 

5/20/2025

 

May 2020 Placement Agent Warrants

 

 

1,244

 

 

$703.13

 

 

5/20/2025

 

August 2020 Warrants

 

 

19,407

 

 

$437.50

 

 

8/3/2025

 

August 2020 Placement Agent Warrants

 

 

1,918

 

 

$546.88

 

 

7/30/2025

 

August 2021 Pharos Banker Warrants

 

 

1,484

 

 

$149.50

 

 

8/16/2026

 

February 2022 Series B Warrants

 

 

391,527

 

 

$14.00

 

 

2/4/2029

 

July 2022 Series C Warrants

 

 

284,020

 

 

$14.00

 

 

7/22/2027

 

January 2023 Series E Warrants

 

 

331,608

 

 

$4.00

 

 

3/21/2028

 

March 2023 Series F Warrants

 

 

4,999,093

 

 

$3.00

 

 

3/21/2025

 

March 2023 Series G Warrants

 

 

4,999,093

 

 

$3.00

 

 

3/21/2029

 

 

 

 

11,042,137