In-licensing and Other Research and Development Agreements	6 Months Ended
Jun. 30, 2025
In-Licensing And Other Research And Development Agreements [Abstract]
In-licensing and Other Research and Development Agreements	12. In-licensing and Other Research and Development Agreements Stanford License Agreement In April 2016, Eidos entered into a license agreement with the Board of Trustees of the Stanford University, relating to Eidos’ drug discovery and development initiatives. Under this agreement and its amendments, Eidos has been granted certain worldwide exclusive licenses to make, use, and sell products that are covered by licensed patent rights. Eidos may also be required to make future payments of up to approximately $1.0 million to Stanford University upon achievement of specific intellectual property, clinical and regulatory milestone events, and pay royalties of up to low single-digit percentages on future net sales, if any. In addition, Eidos is obligated to pay Stanford University a percentage of non-royalty revenue received by Eidos from its sublicensees, with the amount owed decreasing annually for three years based on when the applicable sublicense agreement is executed. Additionally, under the license agreement with Stanford University, we will pay Stanford University a portion of all nonroyalty sublicensing consideration attributable to the sublicense of the licensed compounds. For the three and six months ended June 30, 2025, we incurred $2.4 million and $6.9 million, respectively, of license fees payable to Stanford University, which were related to the regulatory milestone achieved in February 2025 under the Bayer License Agreement (refer to Note 11) as well as the regulatory milestone achieved in May 2025 under the Eidos-Alexion License Agreement (refer to Note 11). These license fees were capitalized as finite-lived intangible assets (refer to Note 7). In addition, during the three and six months ended June 30, 2025 we incurred $1.1 million and $1.7 million, respectively, in royalties on net product revenue of Attruby and Beyonttra. For the six months ended June 30, 2024, we incurred and paid $8.1 million of license fees due to Stanford University related to the Company entering into an exclusive license agreement with Bayer in March 2024. Resilience Development and Manufacturing Service Agreements In September 2023, BridgeBio Gene Therapy, LLC (“BBGT”), formerly Aspa Therapeutics, Inc., and Adrenas Therapeutics Inc. (“Adrenas”), each entered into a Development and Manufacturing Services Agreement (collectively the “Resilience DMSAs”) and a Project Agreement (collectively the “Resilience PAs”), (collectively the “Resilience Agreements”) with Resilience US, Inc. (“Resilience”), for Resilience to provide contract development, manufacturing, testing and related services with respect to therapeutic and pharmaceutical products for the clinical development applications of BBP-812 and BBP-631, respectively. BBP-812 is an intravenous AAV9 investigational drug product intended for the treatment of children with Canavan Disease, under the age of five years. BBP-631 is an intravenous AAV5 investigational drug product intended for the treatment of adults and children with congenital adrenal hyperplasia. The Resilience DMSAs have ten-year terms and may each be extended for additional two-year periods. Under the Resilience PAs, Resilience will provide BBGT with a cost sharing credit of the lesser of a fixed percentage of certain agreed upon service costs or $15.5 million. Under the Resilience PAs, Resilience will provide Adrenas with a cost sharing credit of the lesser of a fixed percentage of certain agreed upon service costs or $29.3 million. In addition to the payments for their share of services performed by Resilience, BBGT and Adrenas may each be required to make future payments of up to $10.0 million upon achievement of certain development and approval milestone events, and royalty payments (mid-single digits for BBP-812 and low-single digits for BBP-631) based on achievement of certain net sales metrics. In September 2024, we announced our decision to cease pursuing development of BBP-631, the Company’s investigational adeno-associated virus 5 gene therapy, for congenital adrenal hyperplasia (“CAH”), under our plans to reprioritize and advance our corporate strategy and development programs (Refer to Note 16 for additional details). In October 2024, Adrenas provided written notice to Resilience for the termination of the Development and Manufacturing Services Agreement and Project Agreement for the clinical application of BBP-631 effective October 2024, and all rights and obligations thereunder. In February 2025, BBGT provided written notice to Resilience for the termination of the Development and Manufacturing Services Agreement and Project Agreement for the clinical application of BBP-812 effective February 2025, and all rights and obligations thereunder. For the six months ended June 30, 2025, $1.2 million was incurred in research and development expenses in connection with the Resilience Agreements prior to termination. For the three and six months ended June 30, 2024, $0.4 million and $0.9 million, respectively, was incurred in research and development expenses, which was net of $0.5 million and $1.1 million, respectively, in cost sharing credits received in connection with the Resilience Agreements. Other License and Collaboration Agreements In addition to the agreements described above, we have also entered into other license and collaboration agreements with various institutions and business entities on terms similar to those described above, none of which are material individually or in the aggregate.

In-licensing and Other Research and Development Agreements

6 Months Ended

Jun. 30, 2025

In-Licensing And Other Research And Development Agreements [Abstract]

In-licensing and Other Research and Development Agreements

12.

In-licensing and Other Research and Development Agreements

Stanford License Agreement

In April 2016, Eidos entered into a license agreement with the Board of Trustees of the Stanford University, relating to Eidos’ drug discovery and development initiatives. Under this agreement and its amendments, Eidos has been granted certain worldwide exclusive licenses to make, use, and sell products that are covered by licensed patent rights. Eidos may also be required to make future payments of up to approximately $1.0 million to Stanford University upon achievement of specific intellectual property, clinical and regulatory milestone events, and pay royalties of up to low single-digit percentages on future net sales, if any. In addition, Eidos is obligated to pay Stanford University a percentage of non-royalty revenue received by Eidos from its sublicensees, with the amount owed decreasing annually for three years based on when the applicable sublicense agreement is executed.

Additionally, under the license agreement with Stanford University, we will pay Stanford University a portion of all nonroyalty sublicensing consideration attributable to the sublicense of the licensed compounds. For the three and six months ended June 30, 2025, we incurred $2.4 million and $6.9 million, respectively, of license fees payable to Stanford University, which were related to the regulatory milestone achieved in February 2025 under the Bayer License Agreement (refer to Note 11) as well as the regulatory milestone achieved in May 2025 under the Eidos-Alexion License Agreement (refer to Note 11). These license fees were capitalized as finite-lived intangible assets (refer to Note 7). In addition, during the three and six months ended June 30, 2025 we incurred $1.1 million and $1.7 million, respectively, in royalties on net product revenue of Attruby and Beyonttra. For the six months ended June 30, 2024, we incurred and paid $8.1 million of license fees due to Stanford University related to the Company entering into an exclusive license agreement with Bayer in March 2024.

Resilience Development and Manufacturing Service Agreements

In September 2023, BridgeBio Gene Therapy, LLC (“BBGT”), formerly Aspa Therapeutics, Inc., and Adrenas Therapeutics Inc. (“Adrenas”), each entered into a Development and Manufacturing Services Agreement (collectively the “Resilience DMSAs”) and a Project Agreement (collectively the “Resilience PAs”), (collectively the “Resilience Agreements”) with Resilience US, Inc. (“Resilience”), for Resilience to provide contract development, manufacturing, testing and related services with respect to therapeutic and pharmaceutical products for the clinical development applications of BBP-812 and BBP-631, respectively. BBP-812 is an intravenous AAV9 investigational drug product intended for the treatment of children with Canavan Disease, under the age of five years. BBP-631 is an intravenous AAV5 investigational drug product intended for the treatment of adults and children with congenital

adrenal hyperplasia. The Resilience DMSAs have ten-year terms and may each be extended for additional two-year periods. Under the Resilience PAs, Resilience will provide BBGT with a cost sharing credit of the lesser of a fixed percentage of certain agreed upon service costs or $15.5 million. Under the Resilience PAs, Resilience will provide Adrenas with a cost sharing credit of the lesser of a fixed percentage of certain agreed upon service costs or $29.3 million. In addition to the payments for their share of services performed by Resilience, BBGT and Adrenas may each be required to make future payments of up to $10.0 million upon achievement of certain development and approval milestone events, and royalty payments (mid-single digits for BBP-812 and low-single digits for BBP-631) based on achievement of certain net sales metrics.

In September 2024, we announced our decision to cease pursuing development of BBP-631, the Company’s investigational adeno-associated virus 5 gene therapy, for congenital adrenal hyperplasia (“CAH”), under our plans to reprioritize and advance our corporate strategy and development programs (Refer to Note 16 for additional details). In October 2024, Adrenas provided written notice to Resilience for the termination of the Development and Manufacturing Services Agreement and Project Agreement for the clinical application of BBP-631 effective October 2024, and all rights and obligations thereunder. In February 2025, BBGT provided written notice to Resilience for the termination of the Development and Manufacturing Services Agreement and Project Agreement for the clinical application of BBP-812 effective February 2025, and all rights and obligations thereunder.

For the six months ended June 30, 2025, $1.2 million was incurred in research and development expenses in connection with the Resilience Agreements prior to termination. For the three and six months ended June 30, 2024, $0.4 million and $0.9 million, respectively, was incurred in research and development expenses, which was net of $0.5 million and $1.1 million, respectively, in cost sharing credits received in connection with the Resilience Agreements.

Other License and Collaboration Agreements

In addition to the agreements described above, we have also entered into other license and collaboration agreements with various institutions and business entities on terms similar to those described above, none of which are material individually or in the aggregate.