The current institutional shareholding score of Pfizer Inc is 5.00, ranking 72 out of 155 in the Pharmaceuticals industry. The latest institutional shareholding proportion is 69.87%, representing a quarter-over-quarter increase of 3.03%. The largest institutional shareholder is ETHSX, holding a total of 29.97M shares, representing 0.50% of shares outstanding, with 4404.50% increase in holdings.