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Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2022
Stockholders' Equity  
Schedule of warrants outstanding and exercisable for purchase of common stock

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Number of Shares

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September 30, 

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December 31,

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Weighted-Average

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Description

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2022

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2021

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Exercise Price

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Expiration Date

 

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Equity-classified warrants

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May 2013 warrants

 

15,437

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15,437

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$ 0.08

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None

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September 2013 warrants

 

4,096

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4,096

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$ 0.08

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None

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February 2014 warrants

 

2,171

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2,171

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$ 0.08

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None

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April 2020 Private Placement first closing warrants

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3,039,514

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3,039,514

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$ 2.28

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Apr 2023

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April 2020 Private Placement second closing warrants

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1,373,626

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1,373,626

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$ 2.71

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Dec 2023

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April 2020 Private Placement second closing warrants

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—

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1,143,428

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$ 0.01

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None

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July 2020 Private Placement first closing warrants

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—

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389,731

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$ 0.01

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None

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July 2020 Private Placement first closing warrants

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2,764,227

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2,764,227

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$ 2.58

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Jul 2023

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7,199,071

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8,732,230

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Liability-classified warrants

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Aceragen Acquisition warrants:

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Convertible to common stocks

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1,353,143

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—

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$ 0.46

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3/23/2031

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Convertible to preferred stocks

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14,215

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—

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$ 460.00

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3/23/2031

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1,367,358

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Total outstanding

 

8,566,429

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8,732,230

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