Quarterly report [Sections 13 or 15(d)]

LICENSE AGREEMENTS

LICENSE AGREEMENTS	3 Months Ended
Mar. 31, 2025
License Agreements
LICENSE AGREEMENTS	6. LICENSE AGREEMENTS The Company entered into a license agreement (the "Jenrin License Agreement") with Jenrin Discovery, LLC ("Jenrin"), a privately-held Delaware limited liability company, effective September 20, 2018. Pursuant to the Jenrin License Agreement, Jenrin granted the Company exclusive worldwide rights to develop and commercialize the Licensed Products (as defined in the Jenrin License Agreement) which includes the Jenrin library of over 600 compounds and multiple issued and pending patent filings. The compounds are designed to treat inflammatory and fibrotic diseases by targeting the endocannabinoid system. In consideration of the license and other rights granted by Jenrin, the Company paid Jenrin a $0.3 million upfront cash payment and is obligated to pay potential milestone payments to Jenrin totaling up to $18.4 million for each compound it elects to develop based upon the achievement of specified development and regulatory milestones. In addition, the Company is obligated to pay Jenrin royalties in the mid, single digits based on net sales of any Licensed Products, subject to specified reductions. The Company achieved the first milestone in the amount of $0.4 million associated with the progression into a clinical trial for CRB-913 during the three months ended March 31, 2025. This amount is included in accounts payable within the condensed consolidated balance sheet as of March 31, 2025. The Company entered into a license agreement (the "UCSF License Agreement") with the Regents of the University of California ("The Regents") effective May 26, 2021. Pursuant to the UCSF License Agreement, the Company received an exclusive license to certain patents relating to humanized antibodies against integrin αvβ8, one of which the Company is referring to as CRB-601, along with non-exclusive licenses to certain related know-how and materials. The Company amended the UCSF License Agreement with The Regents effective November 17, 2022 adding additional antibody patents to the agreement. In consideration for the license and other rights granted to the Company under the UCSF License Agreement, the Company paid The Regents a license issue fee of $1.5 million. In consideration for the additional antibody patents granted to the Company, the Company paid The Regents a license issue fee of $0.8 million, paid in two equal installments of $0.4 million. The Company further amended the UCSF License Agreement with The Regents effective August 14, 2023 to incorporate certain new technology rights and amend the payment schedule for the development milestone for the filing of patent rights and the development milestone for the filing of an Investigational New Drug ("IND"). In addition to the license issuance fees, the Company is obligated to pay an annual license maintenance fee, as well as up to $150.8 million in remaining potential milestone payments, excluding indication milestones for antibodies used for diagnostic products and services that will be an additional $50.0 thousand for each new indication, for the achievement of certain development, regulatory, and sales milestones. In addition, the Company is also obligated to pay royalties in the lower, single digits on sales of products falling within the scope of the licensed patents, which is subject to a minimum annual royalty obligation, and a percentage share of certain payments received by the Company from sublicensees or in connection with the sale of the licensed program. During the three months ended March 31, 2025, the Company paid $1.6 million under the UCSF License Agreement for previously achieved milestone payments. This amount was included within accounts payable within the condensed consolidated balance sheet as of December 31, 2024. The Company entered into a license agreement (the "CSPC License Agreement") with CSPC Megalith Biopharmaceutical Co., Ltd. ("CSPC"), a subsidiary of CSPC Pharmaceutical Group Limited, effective February 12, 2023. Pursuant to the CSPC License Agreement, the Company received an exclusive license to develop and commercialize a novel clinical stage ADC targeting Nectin-4, which the Company is referring to as CRB-701, in the U.S., Canada, the European Union (including the European Free Trade Area), the U.K., and Australia. In consideration for the license granted to the Company under the CSPC License Agreement, the Company paid CSPC an upfront payment of $7.5 million ($5.0 million paid at signing during the first quarter of 2023 followed by $2.5 million paid during the third quarter of 2024). The Company is obligated to pay potential milestone payments to CSPC totaling up to $130.0 million based upon the achievement of specified development and regulatory milestones and $555.0 million in potential commercial milestone payments. In addition, we are obligated to pay royalties in the low double digits based on net sales of any Licensed Products, as defined in the CSPC License Agreement. The Company determined that substantially all of the fair value of the Jenrin License Agreement and CSPC License Agreement was attributable to a single in-process research and development asset which did not constitute a business. The Company determined that substantially all of the fair value of the UCSF License Agreement was attributable to separate groups of in-process research and development assets which did not constitute a business. The Company concluded that it did not have any alternative future use for the acquired in-process research and development assets. Thus, the Company recorded the various upfront payments to research and development expenses in the quarter the license deals became effective. The Company will account for the development, regulatory, and sales milestone payments in the period that the relevant milestones are achieved as either research and development expense or as an intangible asset as applicable. Research and development expenses associated with upfront payments and clinical milestones was $0.4 million for the three months ended March 31, 2025 related to the CRB-913 milestone payment in accordance with the Jenrin License Agreement. For the three months ended March 31, 2024, no research and development expense associated with upfront payments or clinical milestones were incurred under any of the above agreements.

LICENSE AGREEMENTS

3 Months Ended

Mar. 31, 2025

6. LICENSE AGREEMENTS

The Company entered into a license agreement (the "Jenrin License Agreement") with Jenrin Discovery, LLC ("Jenrin"), a privately-held Delaware limited liability company, effective September 20, 2018. Pursuant to the Jenrin License Agreement, Jenrin granted the Company exclusive worldwide rights to develop and commercialize the Licensed Products (as defined in the Jenrin License Agreement) which includes the Jenrin library of over 600 compounds and multiple issued and pending patent filings. The compounds are designed to treat inflammatory and fibrotic diseases by targeting the endocannabinoid system.

In consideration of the license and other rights granted by Jenrin, the Company paid Jenrin a $0.3 million upfront cash payment and is obligated to pay potential milestone payments to Jenrin totaling up to $18.4 million for each compound it elects to develop based upon the achievement of specified development and regulatory milestones. In addition, the Company is obligated to pay Jenrin royalties in the mid, single digits based on net sales of any Licensed Products, subject to specified reductions. The Company achieved the first milestone in the amount of $0.4 million associated with the progression into a clinical trial for CRB-913 during the three months ended March 31, 2025. This amount is included in accounts payable within the condensed consolidated balance sheet as of March 31, 2025.

The Company entered into a license agreement (the "UCSF License Agreement") with the Regents of the University of California ("The Regents") effective May 26, 2021. Pursuant to the UCSF License Agreement, the Company received an exclusive license to certain patents relating to humanized antibodies against integrin αvβ8, one of which the Company is referring to as CRB-601, along with non-exclusive licenses to certain related know-how and materials. The Company amended the UCSF License Agreement with The Regents effective November 17, 2022 adding additional antibody patents to the agreement.

In consideration for the license and other rights granted to the Company under the UCSF License Agreement, the Company paid The Regents a license issue fee of $1.5 million. In consideration for the additional antibody patents granted to the Company, the Company paid The Regents a license issue fee of $0.8 million, paid in two equal installments of $0.4 million.

The Company further amended the UCSF License Agreement with The Regents effective August 14, 2023 to incorporate certain new technology rights and amend the payment schedule for the development milestone for the filing of patent rights and the development milestone for the filing of an Investigational New Drug ("IND").

In addition to the license issuance fees, the Company is obligated to pay an annual license maintenance fee, as well as up to $150.8 million in remaining potential milestone payments, excluding indication milestones for antibodies used for diagnostic products and services that will be an additional $50.0 thousand for each new indication, for the achievement of certain development, regulatory, and sales milestones. In addition, the Company is also obligated to pay royalties in the lower, single digits on sales of products falling within the scope of the licensed patents, which is subject to a minimum annual royalty obligation, and a percentage share of certain payments received by the Company from sublicensees or in connection with the sale of the licensed program. During the three months ended March 31, 2025, the Company paid $1.6 million under the UCSF License Agreement for previously achieved milestone payments. This amount was included within accounts payable within the condensed consolidated balance sheet as of December 31, 2024.

The Company entered into a license agreement (the "CSPC License Agreement") with CSPC Megalith Biopharmaceutical Co., Ltd. ("CSPC"), a subsidiary of CSPC Pharmaceutical Group Limited, effective February 12, 2023. Pursuant to the CSPC License Agreement, the Company received an exclusive license to develop and commercialize a novel clinical stage ADC targeting Nectin-4, which the Company is referring to as CRB-701, in the U.S., Canada, the European Union (including the European Free Trade Area), the U.K., and Australia.

In consideration for the license granted to the Company under the CSPC License Agreement, the Company paid CSPC an upfront payment of $7.5 million ($5.0 million paid at signing during the first quarter of 2023 followed by $2.5 million paid during the third quarter of 2024). The Company is obligated to pay potential milestone payments to CSPC totaling up to $130.0 million based upon the achievement of specified development and regulatory milestones and $555.0 million in potential commercial milestone payments. In addition, we are obligated to pay royalties in the low double digits based on net sales of any Licensed Products, as defined in the CSPC License Agreement.

The Company determined that substantially all of the fair value of the Jenrin License Agreement and CSPC License Agreement was attributable to a single in-process research and development asset which did not constitute a business. The Company determined that substantially all of the fair value of the UCSF License Agreement was attributable to separate groups of in-process research and development assets which did not constitute a business. The Company concluded that it did not have any alternative future use for the acquired in-process research and development assets. Thus, the Company recorded the various upfront payments to research and development expenses in the quarter the license deals became effective. The Company will account for the development, regulatory, and sales milestone payments in the period that the relevant milestones are achieved as either research and development expense or as an intangible asset as applicable. Research and development expenses associated with upfront payments and clinical milestones was $0.4 million for the three months ended March 31, 2025 related to the CRB-913 milestone payment in accordance with the Jenrin License Agreement. For the three months ended March 31, 2024, no research and development expense associated with upfront payments or clinical milestones were incurred under any of the above agreements.