These proportions are not surprising, as women represent a minority of senior management positions in the financial sector. Portfolio management is usually a fairly senior role, so the inequality is reflected.
Remarkably and perhaps depressingly, Morningstar UK found until recently that there were still more funds run by fund managers called Dave than by women.
Pushing for change is important, not only because there is ample academic and empirical evidence to suggest that diverse teams are more innovative and often (depending on the tasks) perform better, but also because a deeper talent pool increases the chances of finding good talent . people to fill PM roles.