in february 2014, ninivaggi joined federal-mogul, one of icahn enterprises’ portfolio investments, as co-chief executive officer to lead the company’s aftermarket business.<ref name="icahn enterprises l.p. - form 8k filing – 2/9/2015"></ref> ninivaggi remained on the icahn enterprises board of directors until may 2015 when he became co-chairman of federal-mogul. federal-mogul, founded in 1899, is a $7.5 billion supplier of powertrain, chassis, driveline and safety products to the automotive, commercial vehicle, maritime, rail and aerospace industries.<ref name="federal-mogul holdings corporation - form 10k filing 2/29/2016"></ref> during his tenure at federal-mogul, the company launched strategies to revamp its distribution and it systems, rebuild the company’s aftermarket brands and expand in emerging markets. the company also completed several significant acquisitions and strategic partnerships.