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Subsequent Events | 12 Months Ended
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Dec. 31, 2021
Subsequent Events [Abstract] |
Subsequent Events | Subsequent Events Janssen Research Collaboration and License Agreement In February 2022, the Company entered into the Janssen Collaboration pursuant to which the Company granted Janssen an exclusive license to use the Company's proprietary Dolasynthen platform and other technology to develop, manufacture and commercialize ADCs directed to up to three targets selected by Janssen. The Company is responsible for performing bioconjugation activities to create ADCs for Janssen based on antibodies provided by Janssen. The Company will also perform certain chemistry, manufacturing and controls development and early stage manufacturing activities for ADCs that Janssen progresses through development, up to and including the manufacturing of clinical drug substance, at Janssen’s cost. Except with respect to this limited manufacturing, Janssen will be responsible for the further development, manufacturing and commercialization of the ADCs developed under the Janssen Collaboration, including obtaining any necessary regulatory approvals, at Janssen’s cost. The Company received an upfront payment of $40,000 in February 2022. The Company is eligible to receive development and regulatory milestones with an aggregate total of $501,000, if licensed products directed to all three Targets are advanced by Janssen. The Company is also eligible to receive commercial milestones with an aggregate total of $530,000 in the event of commercialization of three Targets by Janssen and tiered royalties based on mid-single digits to low-double digits on future net sales of licensed ADCs Unless earlier terminated, the Janssen Collaboration will continue in effect until the date on which the royalty term and all payment obligations with respect to all licensed ADCs in all countries have expired. Other Events On February 2, 2022, the Company amended the Commercial License and Option Agreement with Synaffix B.V. (Synaffix) in connection with the Janssen Collaboration, and agreed to pay Synaffix a non-refundable execution fee of $1,500 which will be applied against future target license fees or development milestones. Further in connection with the Janssen Collaboration, on February 17, 2022, the Company amended the New Credit Facility described in Note 7, Debt, to these consolidated financial statements. Pursuant to this amendment the Company has agreed to replace the tranche B term loan and the tranche C term loan with a single combined term loan tranche in an aggregate principal amount of $20,000. Also, the combined term loan tranche will now be available any time on or prior to June 30, 2023, within 90 days of the Company achieving both of the prior tranche B and tranche C term loan milestones. Subsequent to December 31, 2021 and through February 25, 2022, the Company sold 9,493,776 shares of common stock resulting in net proceeds of $45,579 from ATM offerings, with substantial participation from existing long-term investors. Approximately $9,414 remains unsold and available for sale under the 2020 ATM.

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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -URI http://asc.fasb.org/topic&trid=2122774 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662 + Details
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