| Summary of outstanding warrants to purchase common stock |
The following table summarizes information with regard to outstanding warrants to purchase stock as of September 30, 2024:
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Number of Common |
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Shares Issuable |
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Upon Exercise of |
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Outstanding |
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Exercise |
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Offering |
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Warrants |
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Price |
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Expiration Date |
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2024 Tranche A Warrants |
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6,739,918 |
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$ |
2.52 |
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July 21, 2029 |
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2024 Tranche B Warrants |
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8,214,278 |
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$ |
4.00 |
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July 21, 2029 |
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2024 Tranche C Warrants |
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4,267,152 |
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$ |
5.50 |
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July 21, 2029 |
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2023 Tranche B Preferred Warrants |
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439,560 |
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$ |
4.7775 |
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September 8, 2028 |
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2022 Common Warrants |
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4,201,044 |
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$ |
1.96 |
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October 25, 2027 |
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June 2020 Series H Common Warrants |
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720,796 |
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$ |
12.075 |
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June 5, 2025 |
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October 2017 Series D Common Warrants |
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31,085 |
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$ |
178.00 |
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October 14, 2024 |
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Total |
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24,613,833 |
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The following table summarizes the outstanding warrants to purchase stock as of December 31, 2023:
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Number of |
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Shares Issuable |
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Upon |
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Exercise of |
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Outstanding |
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Exercise |
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Offering |
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Warrants |
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Price |
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Expiration Date |
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2023 Tranche A Preferred Warrants |
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13,846,154 |
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$ |
3.185 |
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September 8, 2026 |
(1) |
2023 Tranche B Preferred Warrants |
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7,179,487 |
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$ |
4.7775 |
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September 8, 2028 |
(1) |
2022 Common Warrants |
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4,748,221 |
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$ |
1.96 |
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October 25, 2027 |
(2) |
2022 Pre-Funded Common Warrants |
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1,079,136 |
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$ |
0.00001 |
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N/A |
(2) |
June 2020 Series H Common Warrants |
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720,796 |
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$ |
12.075 |
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June 5, 2025 |
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May 2019 Series F Common Warrants |
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195,700 |
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$ |
24.00 |
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May 20, 2024 |
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May 2019 Series G Common Warrants |
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201,800 |
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$ |
24.00 |
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May 20, 2024 |
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October 2017 Series D Common Warrants |
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31,085 |
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$ |
178.00 |
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October 14, 2024 |
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Total |
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28,002,379 |
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| (1) |
These warrants are described further under the caption “September 2023 Private Placement” above. |
| (2) |
These warrants are described further under the caption “October 2022 Public Offering and Private Placement” above. |
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