▁government . ▁ ▁Y ev t ush enk ov ▁res igned ▁in ▁ 1 9 9 3 ▁to ▁establish ▁S istema . ▁ ▁Career ▁Since ▁ 1 9 9 5 ▁he ▁is ▁the ▁major ▁share holder ▁and ▁chairman ▁of ▁the ▁board ▁of ▁the ▁Russian ▁invest ment ▁holding ▁company ▁S istema ▁( t ogether ▁with ▁another ▁Top ▁Man agers ▁such ▁as ▁Ev gen y ▁Nov it sky ). ▁S istema ▁was ▁an ▁early ▁share holder ▁in ▁Russian ▁mobile ▁tele communic ations ▁pione er ▁V imp el Com , ▁and ▁sold ▁its ▁st ake ▁when ▁the ▁company ▁was ▁the ▁first ▁Russian ▁company ▁to ▁list ▁on ▁the ▁New ▁York ▁Stock ▁Exchange ▁in ▁November ▁ 1 9 9 6 . ▁Y ev t ush enk ov ▁took ▁S istema ▁public ▁in ▁February ▁ 2 0 0 5 , ▁in ▁a ▁$ 1 . 3 5 ▁billion ▁IP O ▁that ▁was ▁Russia ' s ▁largest ▁ever ▁at ▁the ▁time . ▁Today ▁S istema ▁is ▁the ▁largest ▁share holder ▁in ▁M TS , ▁Russia ' s ▁largest ▁tele communic ations ▁company . ▁Other ▁major ▁S istema ▁assets ▁include ▁children ' s ▁goods ▁ret ail er ▁Det sky ▁Mir , ▁pul p ▁and ▁paper ▁holding ▁Seg ez ha ▁Group ▁, ▁Russia ’ s ▁largest ▁chain ▁of ▁private ▁health care ▁clin ics ▁M ED SI ▁etc . ▁ ▁In ▁ 2 0 0 9 , ▁S istema ▁purchased ▁oil ▁and ▁gas ▁companies ▁in ▁the ▁Republic ▁of ▁Bash k ort ost an . ▁This ▁would ▁be ▁the ▁foundation ▁of ▁the ▁oil ▁and