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v3.25.3

Segment Information - Research and development costs and an allocation of indirect research and development costs to each program (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) segment | Sep. 30, 2024 USD ($)
Segment Information |  |  |  |
Number of operating segments | segment |  |  | 1 |
Number of reportable segments | segment |  |  | 1 |
Total R&D Expense | $ 62,931 | $ 45,263 | $ 169,741 | $ 116,611
Single reportable segment |  |  |  |
Segment Information |  |  |  |
Total R&D Expense | 62,931 | 45,263 | 169,741 | 116,611
Single reportable segment | Barzolvolimab/Anti-KIT Program |  |  |  |
Segment Information |  |  |  |
Total R&D Expense | 51,619 | 34,393 | 133,967 | 88,643
Single reportable segment | CDX-622 |  |  |  |
Segment Information |  |  |  |
Total R&D Expense | 5,617 | 3,628 | 14,906 | 10,175
Single reportable segment | Other Programs |  |  |  |
Segment Information |  |  |  |
Total R&D Expense | $ 5,695 | $ 7,242 | $ 20,868 | $ 17,793

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- Definition Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147476153/220-40-55-18 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147476153/220-40-55-14 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 48 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-48 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 985 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481283/985-20-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 730 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482916/730-10-50-1 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 912 -SubTopic 730 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479532/912-730-25-1 + Details
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