Inventories for the periods presented consist of the following (in thousands):

​

Inventories as of March 31, 2023 and December 31, 2022 include inventories acquired from Forma pursuant to the license and transition agreement. As of March 31, 2023 and December 31, 2022, we have $0.7 million and $0.8 million, respectively, in advance payments to the manufacturer of our raw materials, which was included within prepaid and other current assets in the condensed balance sheet.