The current institutional shareholding score of Personalis Inc is 5.00, ranking 132 out of 387 in the Biotechnology & Medical Research industry. The latest institutional shareholding proportion is 62.66%, representing a quarter-over-quarter decrease of 7.44%. The largest institutional shareholder is Catherine Wood, holding a total of 5.33M shares, representing 7.59% of shares outstanding, with 0.05% increase in holdings.