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Earn-out Milestone Liability | 12 Months Ended
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Dec. 31, 2020
Hercules Warrant [Member] |
Earn-out Milestone Liability | 12. EARN-OUT MILESTONE LIABILITY The total aggregate purchase price for the EGEN Acquisition included potential future Earn-out Payments contingent upon achievement of certain milestones. The difference between the aggregate $30.4 million in future Earn-out Payments and the $13.9 million included in the fair value of the acquisition consideration at June 20, 2014 was based on the Company’s risk-adjusted assessment of each milestone (10% to 67%) and utilizing a discount rate based on the estimated time to achieve the milestone (1.5 to 2.5 years). The earn-out milestone liability will be fair valued at the end of each quarter and any change in their value will be recognized in the financial statements. On March 28, 2019, the Company and EGWU, Inc, entered into the Amended Asset Purchase Agreement. Pursuant to the Amended Asset Purchase Agreement, payment of the earnout milestone liability related to the Ovarian Cancer Indication of $12.4 million has been modified. The Company has the option to make the payment as follows:
a) | $7.0 million in cash within 10 business days of achieving the milestone; or
b) | $12.4 million in cash, common stock of the Company, or a combination of either, within one year of achieving the milestone.
The Company provided EGWU, Inc. 200,000 warrants to purchase common stock at a strike price of $0.01 per warrant share as consideration for entering into this amended agreement. The warrant shares have no expiration and were fair valued at $2.00 using the closing price of a share of Celsion stock on the date of issuance offset by the exercise price and recorded as a non-cash expense in the income statement and were classified as equity on the balance sheet. In October of 2020, EGWU, Inc. elected to receive 197,260 shares through a non-cash conversion exercised all 200,000 warrant shares. At December 31, 2020, the Company fair valued the earn-out milestone liability at $7.0 million and recognized a non-cash charge of $1.3 million during 2020 as a result of the change in the fair value of earn-out milestone liability of $5.7 million at December 31, 2019. In assessing the earnout milestone liability at December 31, 2020, the Company fair valued each of the two payment options per the Amended Asset Purchase Agreement and weighted them at 50% and 50% probability for the $7.0 million and the $12.4 million payments, respectively. At December 31, 2019, the Company fair valued the earn-out milestone liability at $5.7 million and recognized a non-cash gain of $3.2 million during 2019 as a result of the change in the fair value of earn-out milestone liability of $8.9 million at December 31, 2018. In assessing the earnout milestone liability at December 31, 2019, the Company fair valued each of the two payment options per the Amended Asset Purchase Agreement and weighted them at 80% and 20% probability for the $7.0 million and the $12.4 million payments, respectively. The following is a summary of the changes in the earn-out milestone liability for 2019 and 2020:
Balance at January 1, 2019 |  | $ | 8,907,664 |
Non-cash gain from the adjustment for the change in fair value included in 2019 net loss |  |  | (3,189,955 | )
Balance at December 31, 2019 |  |  | 5,717,709 |
Non-cash loss from the adjustment for the change in fair value included in 2020 net loss |  |  | 1,300,291 |
Balance at December 31, 2020 |  | $ | 7,018,000 |

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