If you are a direct registered Shareholder, the unit price of your shares and their capital gains are available in your Shareholder Portal, under the heading "My portfolio" > "Type of share display" > "View details"
Note:
The unit price of your shares is the average by value code of the acquisition prices of your shares: acquisition price, value applied at the time a gift is made or an estate settled, free shares (value of €0).
The capital gain on the sale of a share corresponds to the difference between the sale value and its unit price