Acquisition price and date of unlisted foreign shares paid through UK company payroll

As part of my employment I receive shares in an unlisted US company. On date A the shares ‘vest’ at the companies latest 409A USD value. On date B (roughly 1.5 months after date A) the shares are payrolled at a GBP value, and income tax/NI paid through PAYE on the GBP value of these shares, through the UK subsidiary which employs me. On date C (6 months after date A) these shares become eligible for sale. (1) Please can you confirm that the acquisition price for CGT purposes is the GBP value of the shares processed through UK payroll (i.e. the GBP value that I paid income tax on)? (2) Please can you confirm that the acquisition date for the shares (for use in determining whether the shares come under the CGT bed and breakfast rule) is date B? Regards.

Hi,
You are correct for both.
Thank you.