Inventory

6 Months Ended

Jun. 30, 2023

The components of inventory are summarized as follows:


(In millions)	As of June 30, 2023		As of December 31, 2022
Raw materials	$	452.8	$	413.2
Work in process	751.7		751.9
Finished goods	194.8		200.4
Total inventory	$	1,399.3	$	1,365.5

Balance Sheet Classification:
Inventory	$	1,333.5	$	1,344.4
Investments and other assets	65.8		21.1
Total inventory	$	1,399.3	$	1,365.5

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 six months ended June 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 six months ended June 30, 2022. As of June 30, 2023 and December 31, 2022, the carrying value of our ADUHELM inventory was immaterial.