Toshiba Memory Holdings will buy out the preferred shares in the chipmaker held by Apple, Dell Technologies and two other investors, the Wall Street Journal reports.

Apple and Dell will join Kingston Technology and Seagate Technology in selling their shares to Toshiba Memory for about 500 billion yen ($4.5 billion), the Journal reported, citing unidentified people familiar with the matter. The deal will be completed by the end of May.

The U.S. technology companies were part of a group led by Bain Capital that took over the memory chipmaker from former parent Toshiba Corp.

Toshiba Memory is aiming for a listing in Tokyo later this year or in early 2020, the Journal said, citing one person familiar.