Porsche AG
2012
Why
After Porsche SE's failed attempt to take over Volkswagen in 2008-2009, Volkswagen bought 49.9% of the Porsche car business in 2009 and the remaining 50.1% in August 2012, making Porsche AG a wholly owned subsidiary.
Impact
Porsche's sports-car business was integrated into group purchasing, platform and engine development, including later shared electric platforms with Audi.
Outcome
Volkswagen listed a minority stake in Porsche AG on the Frankfurt Stock Exchange in September 2022 and keeps majority control. Porsche SE, controlled by the Porsche and Piech families, remains Volkswagen's largest shareholder.