Inventory

9 Months Ended

Sep. 30, 2023

The components of inventory are summarized as follows:


(In millions)	As of September 30, 2023		As of December 31, 2022
Raw materials	$	437.1	$	413.2
Work in process	2,285.1		751.9
Finished goods	316.1		200.4
Total inventory	$	3,038.3	$	1,365.5

Balance Sheet Classification:
Inventory	$	2,982.4	$	1,344.4
Investments and other assets	55.9		21.1
Total inventory	$	3,038.3	$	1,365.5

During the third quarter of 2023 we recorded approximately $1.7 billion of acquired inventory related to SKYCLARYS as a result of our acquisition of Reata in September 2023. For additional information on our acquisition of Reata, please read Note 2, Acquisitions, to these condensed consolidated financial statements.

During the first quarter of 2022 we wrote-off approximately $275.0 million of inventory related to ADUHELM, as a result of the final NCD, which was recognized in cost of sales within our condensed consolidated statements of income for the nine months ended September 30, 2022. We recognized approximately $136.0 million related to Eisai's 45.0% share of these charges in collaboration profit sharing/(loss reimbursement) within our condensed consolidated statements of income for the nine months ended September 30, 2022. As of September 30, 2023 and December 31, 2022, the carrying value of our ADUHELM inventory was immaterial.