The current institutional shareholding score of Orion SA is 10.00, ranking 1 out of 68 in the Chemicals industry. The latest institutional shareholding proportion is 98.33%, representing a quarter-over-quarter increase of 2.65%. The largest institutional shareholder is Richard Pzena, holding a total of 4.04M shares, representing 8.16% of shares outstanding, with 0.03% increase in holdings.