The Grammy-nominated, seven-member band shot to global fame after the release of its English songs "Butter," "Permission to Dance" and others.
Terms of the deal were not disclosed, the Journal reported https://www.wsj.com/articles/bts-drops-sony-for-universal-11634903732?page=1.
Universal, whose other hit singers and catalogues include Justin Bieber and The Beatles, was spun off by France's Vivendi last month.
Hybe Co Ltd, which manages BTS, Sony Music and Universal Music Group did not immediately respond to Reuters requests for comment.
(Reporting by Nivedita Balu in Bengaluru; Editing by Ramakrishnan M.)