Quarterly report pursuant to Section 13 or 15(d)

Common Stock, Stock Options and Warrants (Tables)

v3.20.1
Common Stock, Stock Options and Warrants (Tables)
6 Months Ended
Mar. 31, 2020
Stockholders' Equity Note [Abstract]  
Schedule of stock option activity

    Option
Shares
    Weighted-
Average
Exercise
Price
    Weighted-
Average
Remaining
Contractual
Term
  Aggregate
Intrinsic
Value
 
Outstanding at October 1, 2019     1,771,039     $ 4.03              
Granted     980,799       0.67              
Exercised                        
Forfeited or expired                        
Outstanding at March 31, 2020     2,751,838     $ 2.831     8.1 years   $ 40,092  
Exercisable at March 31, 2020     1,224,925     $ 5.13     6.7 years   $ 38,842  

Schedule of warrants outstanding

    Exercise
price
    Number     Expiration Dates
Investor Warrants   $ 9.00       169,135     April 22, 2020 – September 14, 2020
Investor Warrants     9.00       307,778     November 5, 2020 – April 25, 2021
LMB Warrants     6.15       38,771     November 20, 2020 – March 2, 2021
LMB Warrants     7.50       73,883     August 18, 2020 – March 14, 2021
LMB Warrants     7.50       53,110     March 24, 2022 – April 29, 2022
Financial Advisor Warrants     3.00       25,833     August 15, 2021
2016 Offering Warrants     4.13       140,819     November 23, 2021 – February 27, 2022
2017 Public Offering Warrants     4.13       1,622,989     August 2, 2022
2017 Public Offering Underwriter Warrants     4.54       65,940     February 2, 2023
December 2017 Registered Direct/Private Placement Offering Investor Warrants     4.63       640,180     June 19, 2023
December 2017 Registered Direct/Private Placement Offering Placement Agent Warrants     5.87       89,625     December 19, 2022
March 2018 Registered Direct/Private Placement Offering Investor Warrants     2.86       218,972     October 2, 2023
March 2018 Registered Direct/Private Placement Offering Placement Agent Warrants     3.73       46,866     March 28, 2023
August 2018 Offering Investor Warrants     1.15       7,843,138     August 14, 2023
August 2018 Offering Agent Warrants     1.59       549,020     August 8, 2023
April 2019 Registered Direct/Private Placement Offering Investor Warrants     1.42       1,294,498     April 5, 2021
April 2019 Registered Direct/Private Placement Offering Placement Agent Warrants     1.93       240,130     April 5, 2021
September 2019 Offering Investor Warrants     0.77       2,793,297     September 27, 2024
September 2019 Offering Underwriter Warrants     1.12       547,486     September 27, 2024
February 2020 Exercise Agreement Warrants     1.02       6,298,673     August 19, 2025
February 2020 Exercise Agreement Placement
Agent Warrants
    1.28       440,907     August 19, 2025
              23,501,050      

Summary of common stock reserved for future issuances

Stock plan options outstanding     2,751,838  
Stock plan shares available for future grants     3,110,000  
Warrants outstanding     23,501,050  
Unit purchase options outstanding     201,334  
Total     29,564,222