➀ Kioxia, the third-largest manufacturer of NAND flash, has seen its valuation drop from $30 billion to $5 billion over the past seven years. Initial bids for Toshiba's memory business reached $30 billion, but the current market value is significantly lower. ➁ Toshiba's memory unit was previously owned by a Bain-led consortium that included Hynix, Apple, Dell, Kingston, and Seagate. ➂ With the latest valuation of $5 billion, Toshiba could potentially re-integrate its former memory unit at a low price.