Where the shares are held on trust for the purposes of a pension scheme or employees' share scheme, there shall be disregarded any residual interest of the company that has not vested in possession.
A "residual interest" means a right of the company to receive any of the trust property in the event of—
In subsection (2)—
For the purposes of this section a residual interest vests in possession—
Where by virtue of this section shares are exempt from section 660 or 661 (shares held by company's nominee) at the time they are taken, issued or acquired but the residual interest in question vests in possession before they are disposed of or fully paid up, those sections apply to the shares as if they had been taken, issued or acquired on the date on which that interest vests in possession.
Where by virtue of this section shares are exempt from sections 662 to 668 (shares held by or for public company) at the time they are acquired but the residual interest in question vests in possession before they are disposed of, those sections apply to the shares as if they had been acquired on the date on which the interest vests in possession.