OSK Holdings Berhad (OSK) (MYX: 5053) is a public company listed on the Main Board of Bursa Malaysia Securities Berhad. Despite its public-listing status, it is 80.76% owned by individuals with the lion's share of it owned by its CEO Ong Leong Huat. After commencing business in 1963, the history of OSK has been characterised by four decades of positive growth with a reasonably sound track record despite several ownership changes. OSK has diversified away from its stockbroking business to include investment banking activities which is carried out under its investment bank subsidiary, OSK Investment Bank Berhad.