The current institutional shareholding score of Phillips 66 is 7.00, ranking 25 out of 120 in the Oil & Gas industry. The latest institutional shareholding proportion is 79.49%, representing a quarter-over-quarter increase of 2.08%. The largest institutional shareholder is David G. Herro, holding a total of 9.45M shares, representing 2.28% of shares outstanding, with 0.07% increase in holdings.