GM Board Approves New $6 Billion Stock Buyback The Wall Street JournalGM board approves new $6 billion share buyback authorization CNBCGM Authorizes $6 Billion Buyback as It Books Better EV Profits BloombergGM to Buy Back $6 Billion More in Stock. The Shares Are Rising. Barron’sGeneral Motors approves new $6 billion share buyback plan Reuters