On September 20, 2022, we acquired all of the outstanding share capital of MiroBio Ltd. (“MiroBio”), a privately-held U.K.-based biotechnology company focused on restoring immune balance with agonists targeting immune inhibitory receptors, for $414 million in cash. As a result, MiroBio became our wholly-owned subsidiary.

We accounted for the transaction as an asset acquisition and recorded a $389 million charge to Acquired in-process research and development expenses on our Consolidated Statements of Income during 2022. The remaining purchase price relates to various other assets acquired and liabilities assumed.

In the first quarter of 2021, we completed the acquisition of MYR, a German biotechnology company. MYR focuses on the development and commercialization of therapeutics for the treatment of HDV. The acquisition provided Gilead with Hepcludex, which was conditionally approved by European Medicines Agency (“EMA”) in July 2020 for the treatment of chronic HDV infection in adults with compensated liver disease. Upon closing, MYR became a wholly-owned subsidiary of Gilead. The financial results of MYR were included in our Consolidated Financial Statements from the date of the acquisition.

The aggregate consideration for this acquisition of €1.3 billion (or $1.6 billion) primarily consisted of €1.0 billion (or $1.2 billion) paid upon closing and contingent consideration of up to €300 million, subject to customary adjustments, representing a potential future milestone payment upon FDA approval of Hepcludex. The fair value of this contingent liability, estimated using probability-weighted scenarios for FDA approval, was $341 million as of the acquisition date. As of December 31, 2021, the fair value of the liability was $317 million and was included in Other current liabilities on our Consolidated Balance Sheets. As of December 31, 2022, the fair value of the liability was $275 million and was included in Other long-term obligations. See Note 3. Fair Value Measurements for additional information.

The acquisition of MYR was accounted for as a business combination using the acquisition method of accounting. The following table summarizes estimated fair values of assets acquired and liabilities assumed as of the acquisition date:


(in millions)	Amount
Intangible assets:
Finite-lived intangible asset	$	845
Acquired IPR&D	1,190
Deferred income taxes, net	(513)
Other assets (and liabilities), net	(187)
Total identifiable net assets	1,335
Goodwill	226
Total consideration	$	1,561

The finite-lived intangible asset of $845 million represents the estimated fair value of Hepcludex for HDV in Europe as of the acquisition date. The fair value was determined by applying the income approach using unobservable inputs to estimate probability-weighted net cash flows attributable to Hepcludex for HDV in Europe and a discount rate of 12%. The discount rate used represents the estimated rate that market participants would use to value this intangible asset. This intangible asset is being amortized over an estimated useful life of 10 years.

Acquired IPR&D consists of Hepcludex for HDV in all other regions without regulatory approval, including the United States. The estimated aggregate fair value of $1.19 billion as of the acquisition date was determined by applying the income approach using unobservable inputs (Level 3 under the fair value measurement and disclosure guidance) to estimate probability-weighted net cash flows attributable to this asset and a discount rate of 12%. The discount rate used represents the estimated rate that market participants would use to value this intangible asset.

The excess of the consideration transferred over the fair values of assets acquired and liabilities assumed of $226 million was recorded as goodwill, which primarily reflects the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Goodwill recognized for MYR is not expected to be deductible for income tax purposes.

The one-year measurement period was completed in the first quarter of 2022, with adjustments recorded to the fair values of assets acquired and liabilities assumed of $18 million. See Note 8. Goodwill and Intangible Assets for additional information.

In the fourth quarter of 2020, we completed the acquisition of Immunomedics, a company focused on the development of antibody-drug conjugate technology, for cash consideration of $20.6 billion. Upon closing, Immunomedics became a wholly-owned subsidiary of Gilead. The acquisition was financed with the majority of the proceeds from the September 2020 senior unsecured notes offering, an additional $1.0 billion borrowing under a new senior unsecured term loan facility and cash on hand. In 2021, we repaid the borrowing under the senior unsecured term loan facility.

We recorded share-based compensation expense of $289 million related to the cash settlement of the accelerated share-based compensation expense attributable to the post-combination period, which was primarily recorded in Selling, general and administrative expenses and Research and development expenses on our Consolidated Statements of Income for the year ended December 31, 2020. We also recorded other acquisition-related expenses of $39 million, primarily representing closing costs and related fees, in Selling, general and administrative expenses on our Consolidated Statements of Income for the year ended December 31, 2020.

The acquisition of Immunomedics was accounted for as a business combination using the acquisition method of accounting. The following table summarizes fair values of assets acquired and liabilities assumed as of the acquisition date:


(in millions)	Amount
Cash and cash equivalents	$	726
Inventories	946
Intangible assets:
Finite-lived intangible asset	4,600
Acquired IPR&D	15,760
Outlicense contract	175
Deferred tax liabilities	(4,565)
Liability related to future royalties	(1,100)
Other assets (and liabilities), net	64
Total identifiable net assets	16,606
Goodwill	3,991
Total consideration transferred	$	20,597

The fair value step-up adjustment of $881 million, included in inventories of $946 million as of the acquisition date, was primarily determined by the estimated selling price of finished inventory less the cost to complete the manufacturing process and selling effort. The step-up adjustment was recorded in Cost of goods sold on our Consolidated Statements of Income as the inventory was sold to customers and in Research and development expenses on our Consolidated Statements of Income for inventory used for clinical purposes.

The finite-lived intangible asset of $4.6 billion represents the estimated fair value of Trodelvy for metastatic triple-negative breast cancer (“TNBC”) as of the acquisition date. The fair value was determined by applying the income approach using unobservable inputs to estimate probability-weighted net cash flows attributable to Trodelvy for metastatic TNBC and a discount rate of 7.0%. The discount rate used represents the estimated rate that market participants would use to value this intangible asset. This intangible asset is being amortized over an estimated useful life of 12 years.

Acquired IPR&D assets consist of Trodelvy for hormone receptor-positive, human epidermal growth factor receptor 2-negative (“HR+/HER2-”) breast cancer, Trodelvy for non-small cell lung cancer and Trodelvy for urothelial cancer (“UC”). The estimated aggregate fair value of $15.8 billion as of the acquisition date was determined by applying the income approach using unobservable inputs (Level 3 under the fair value measurement and disclosure guidance) to estimate probability-weighted net cash flows attributable to these assets and a discount rate of 7.0%. The discount rate used represents the estimated rate that market participants would use to value these intangible assets. Trodelvy for UC was granted accelerated approval by FDA in April 2021 and $1.0 billion was reclassified to finite-lived intangibles from IPR&D. Trodelvy for HR+/HER2- breast cancer was partially impaired in the first quarter of 2022, but was subsequently granted approval by FDA in February 2023 and $6.1 billion will be reclassified to finite-lived intangibles from IPR&D in the first quarter of 2023. See Note 8. Goodwill and Intangible Assets for additional information.

We also recorded an intangible asset related to a license and supply agreement with Everest Medicines (“Everest”), which was entered into by Immunomedics prior to the acquisition. Under the agreement, Everest was granted an exclusive license to develop and commercialize Trodelvy in certain territories in Asia and make certain sales milestones and royalty payments to us. The acquisition date fair value of $175 million was determined by estimating the probability-weighted net cash flows attributable to the outlicense and a discount rate of 7.0%. The discount rate represents the estimated rate that market participants would use to value this intangible asset. This intangible asset was being amortized over an estimated useful life of 15 years on a straight-line basis up until we reacquired the rights from Everest in the fourth quarter of 2022. See Note 10. Collaborations and Other Arrangements for additional information.

We assumed a liability related to a funding arrangement, which was originally entered into by Immunomedics and RPI Finance Trust (“RPI”), prior to our acquisition of Immunomedics. Under the funding agreement, RPI has the right to receive certain royalty amounts, subject to certain reductions, based on the net sales of Trodelvy for each calendar quarter during the term of the agreement through approximately 2036. The acquisition date fair value of the liability was estimated as $1.1 billion, which was primarily determined based on current estimates of future royalty payments to RPI over the life of the arrangement using the real options method and an effective annual interest rate of 2.5%. The inputs used for valuation of this liability are unobservable and are considered Level 3 under the fair value measurement and disclosure guidance. The liability related to future royalties was categorized as debt and primarily included in Long-term debt, net on our Consolidated Balance Sheets. See Notes 3. Fair Value Measurements and 11. Debt and Credit Facilities for additional information.

The excess of the consideration transferred over the fair values of assets acquired and liabilities assumed of $4.0 billion was recorded as goodwill, which primarily reflects the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Goodwill recognized for Immunomedics is not expected to be deductible for income tax purposes.