IPR&D and Goodwill
Acquired IPR&D
In-process research and development assets (“IPR&D”) acquired in the 2016 Kairos Therapeutics Inc. (“Kairos”) business combination were classified as indefinite-lived intangible assets and were not amortized until their classification as definite-lived assets. During the year ended December 31, 2024, the Company determined that the fair value of IPR&D, which was estimated using an income approach, was less than its carrying value. Accordingly, the Company recorded an impairment charge of $17,287. The impairment was a result of the Company's decision to discontinue the zanidatamab zovodotin clinical development program which utilized the acquired technology represented by the IPR&D assets. As of July 1, 2024, the Company classified the remaining assets as definite-lived and commenced amortization, which was fully amortized as of December 31, 2024.
The following table summarizes the carrying value of IPR&D, net of impairment:
Acquired
IPR&D
Accumulated
Impairment
Accumulated
Amortization
Net
Balance at December 31, 2022$20,700 $(3,072)$— $17,628 
Change during the period— — — — 
Balance at December 31, 2023$20,700 $(3,072)$— $17,628 
Change during the period— (17,287)(341)(17,628)
Balance at December 31, 2024$20,700 $(20,359)$(341)$— 
Goodwill
The Company performed its annual impairment test of goodwill as of December 31, 2025 and concluded that no impairment existed. As part of the evaluation of the recoverability of goodwill, the Company identified only one reporting unit to which the total carrying amount of goodwill has been assigned. As at December 31, 2025, the Company performed a qualitative assessment for its annual impairment test of goodwill after concluding that it was not more likely than not that the fair value of the reporting unit was less than its carrying value. Consequently, a quantitative impairment test was not required.

Historical Timeline

Fiscal YearFiled
2025Mar 2, 2026Showing above
2024Mar 5, 2025
2023Mar 6, 2024
2022Mar 7, 2023

About Goodwill & Intangibles Disclosures

Goodwill and intangible asset disclosures reveal the premium paid in acquisitions and how management assesses whether that premium retains its value. Since goodwill is no longer amortized under US GAAP, the annual impairment test is the only mechanism that adjusts carrying values downward — making the assumptions behind that test critically important for investors.

Key signals: a history of goodwill impairments suggests management consistently overpays for acquisitions. Watch the gap between reporting unit fair value and carrying amount — when fair value exceeds carrying amount by less than 10-20%, a small decline in business performance could trigger a write-down. For finite-lived intangibles, examine useful life assumptions across customer relationships, technology, and trade names; aggressive estimates inflate near-term earnings. Compare total intangibles-to-total-assets ratios against peers to assess acquisition dependency. Rising goodwill as a percentage of equity can signal balance sheet fragility.