The current institutional shareholding score of Koppers Holdings Inc is 10.00, ranking 1 out of 68 in the Chemicals industry. The latest institutional shareholding proportion is 110.06%, representing a quarter-over-quarter increase of 13.46%. The largest institutional shareholder is Richard Pzena, holding a total of 1.09M shares, representing 6.29% of shares outstanding, with 0.03% increase in holdings.