License and Collaboration Agreements	6 Months Ended
Jun. 30, 2026
License And Collaboration Agreements [Abstract]
License and Collaboration Agreements	Note 7 — License and Collaboration Agreements We have entered into various collaboration agreements including license agreements and collaborative research, development and commercialization agreements with various pharmaceutical and biotechnology companies. Under these collaboration arrangements, we may be entitled to receive license fees, upfront payments, milestone and other contingent payments, royalties, sales milestone payments, and reimbursements for research and development activities. We generally include our costs of performing these services in research and development expense. We analyze our agreements to determine whether we should account for the agreements within the scope of ASC 808 Collaborative Arrangements, and, if so, we analyze whether we should account for any elements under ASC 606 Revenue from Contracts with Customers. We have a collaboration agreement with UCB for dapirolizumab pegol, under which we are entitled to a total of up to $40.0 million of regulatory approval milestones, as well as royalties in the low single digits based on net sales of commercialized products, if any. UCB is developing dapirolizumab pegol, a PEGylated antibody fragment, with Biogen, Inc. for the treatment of systemic lupus erythematosus. However, given the current phase of development of this product and the uncertainty in clinical development, we have excluded these milestones from the transaction price for this agreement. Certain of our other collaboration agreements have resulted in commercialized products for our collaborations partners. Under these agreements, we are entitled to receive royalties based on net sales of these products as well as sales milestones. As discussed in Note 3, we have sold our rights to receive royalties from these other collaboration agreements. Our non-cash royalty revenue, which totaled $10.1 million and $21.0 million for the three and six months ended June 30, 2026, respectively, and $11.2 million and $21.6 million for the three and six months ended June 30, 2025, respectively, represents revenue for granting licenses, which we had satisfied in prior periods.

License and Collaboration Agreements

6 Months Ended

Jun. 30, 2026

License And Collaboration Agreements [Abstract]

Note 7 — License and Collaboration Agreements

We have entered into various collaboration agreements including license agreements and collaborative research, development and commercialization agreements with various pharmaceutical and biotechnology companies. Under these collaboration arrangements, we may be entitled to receive license fees, upfront payments, milestone and other contingent payments, royalties, sales milestone payments, and reimbursements for research and development activities. We generally include our costs of performing these services in research and development expense. We analyze our agreements to determine whether we should account for the agreements within the scope of ASC 808 Collaborative Arrangements, and, if so, we analyze whether we should account for any elements under ASC 606 Revenue from Contracts with Customers.

We have a collaboration agreement with UCB for dapirolizumab pegol, under which we are entitled to a total of up to $40.0 million of regulatory approval milestones, as well as royalties in the low single digits based on net sales of commercialized products, if any. UCB is developing dapirolizumab pegol, a PEGylated antibody fragment, with Biogen, Inc. for the treatment of systemic lupus erythematosus. However, given the current phase of development of this product and the uncertainty in clinical development, we have excluded these milestones from the transaction price for this agreement.

Certain of our other collaboration agreements have resulted in commercialized products for our collaborations partners. Under these agreements, we are entitled to receive royalties based on net sales of these products as well as sales milestones. As discussed in Note 3, we have sold our rights to receive royalties from these other collaboration agreements. Our non-cash royalty revenue, which totaled $10.1 million and $21.0 million for the three and six months ended June 30, 2026, respectively, and $11.2 million and $21.6 million for the three and six months ended June 30, 2025, respectively, represents revenue for granting licenses, which we had satisfied in prior periods.