| Summary of warrants to purchase the classes of Preferred Stock and Common Stock outstanding |
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March 31, 2021 and December 31, 2020
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Shares Issuable
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Weighted
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Contractual
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Underlying
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Upon
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Average
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Term
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Equity
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Balance Sheet
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Exercise of
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Exercise
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Issuance Date
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(in years)
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Instrument
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Classification
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Warrant
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Price
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March 17, 2014
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10
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Common stock
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Liability
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250,000
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$
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0.09
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September 28, 2016
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10
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Preferred Stock
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Temporary Equity
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2,686,246
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$
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0.001
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July 5, 2017
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10
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Common stock
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Equity
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375,000
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$
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0.09
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February 12, 2019
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10
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Common stock
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Equity
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75,000
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$
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0.09
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March 30, 2020
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10
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Common stock
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Equity
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740,991
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$
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0.15
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December 3, 2020
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10
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Common stock
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Equity
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1,000,000
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$
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0.16
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5,127,237
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As of December 31, 2020 and 2019, warrants to purchase the following classes of Preferred Stock and Common Stock outstanding consisted of the following:
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December 31, 2020
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Contractual
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Shares Issuable
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Weighted
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Term
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Underlying Equity
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Balance Sheet
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Upon Exercise
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Average
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Issuance Date
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(in years)
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Instrument
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Classification
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of Warrant
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Exercise Price
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March 17, 2014
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10
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Common stock
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Liability
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250,000
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$
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0.09
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September 28, 2016
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10
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Preferred Stock
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Temporary Equity
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2,686,246
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$
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0.001
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July 5, 2017
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10
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Common stock
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Equity
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375,000
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$
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0.09
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February 12, 2019
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10
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Common stock
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Equity
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75,000
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$
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0.09
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March 30, 2020
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10
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Common stock
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Equity
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740,991
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$
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0.15
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December 3, 2020
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10
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Common stock
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Equity
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1,000,000
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$
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0.16
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5,127,237
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December 31, 2019
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Contractual
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Shares Issuable
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Weighted
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Term
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Underlying Equity
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Balance Sheet
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Upon Exercise of
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Average
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Issuance Date
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(in years)
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Instrument
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Classification
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Warrant
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Exercise Price
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March 17, 2014
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10
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Common stock
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Liability
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250,000
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$
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0.09
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September 28, 2016
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10
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Preferred Stock
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Temporary Equity
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2,686,246
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$
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0.001
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July 5, 2017
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10
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Common stock
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Equity
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375,000
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$
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0.09
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February 12, 2019
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10
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Common stock
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Equity
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75,000
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$
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0.09
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3,386,246
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