Annual report pursuant to Section 13 and 15(d)

Common Stock, Stock Options and Warrants (Tables)

v3.19.3.a.u2
Common Stock, Stock Options and Warrants (Tables)
12 Months Ended
Sep. 30, 2019
Stockholders' Equity Note [Abstract]  
Schedule of assumptions used in fair value of stock option grants
    2019     2018     2017  
Risk-free interest rate     2.18 – 2.53 %     2.78 – 2.99 %     1.79 – 1.90 %
Expected dividend yield     0 %     0 %     0 %
Expected term     6.50 – 10 years       6.50 – 10 years       6.50 – 10 years  
Expected volatility     119 – 121 %     116 %     85 – 108 %
Schedule of stock option activity

    Shares     Weighted-
Average
Exercise
Price
    Weighted-
Average
Remaining
Contractual
Term
  Aggregate
Intrinsic
Value
 
Outstanding at September 30, 2018     1,601,039     $ 4.35              
Granted     190,000       1.04              
Exercised                        
Forfeited or expired     (20,000 )     0.94              
Outstanding at September 30, 2019     1,771,039     $ 4.03     7.75 years   $ 49,465  
Exercisable at September 30, 2019     1,174,019     $ 5.24     7.11 years   $ 49,465  

Schedule of warrants outstanding

    Exercise
price
    Number     Expiration Dates
Investor Warrants   $ 9.00       202,469     March 19, 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     9.90       4,985     January 8, 2020
LMB Warrants     20.70       17,721     November 3, 2019 – March 6, 2020
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 Agent Warrants     5.87       89,625     December 19, 2022
March 2018 Registered Direct/Private Placement Offering Investor Warrants     2.86       669,504     October 2, 2023
March 2018 Registered Direct/Private Placement Offering 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       3,430,421     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       7,821,230     September 27, 2024
September 2019 Offering Pre-Funded Unit Warrants     0.0001       1,060,615     No expiration date
September 2019 Offering Underwriter Warrants     1.12       547,486     September 27, 2024
                     
              25,492,513      

Schedule of common stock reserved for future issuances

Stock plan options outstanding     1,771,039  
Stock plan shares available for future grants     1,090,799  
Warrants     25,492,513  
Unit purchase options     201,334  
Total     28,555,685