For the purposes of this section and sections 127 to 131 "reorganisation" means a reorganisation or reduction of a company's share capital, and in relation to the reorganisation—
"original shares" means shares held before and concerned in the reorganisation,
"new holding" means, in relation to any original shares, the shares in and debentures of the company which as a result of the reorganisation represent the original shares (including such, if any, of the original shares as remain).
The reference in subsection (1) above to the reorganisation of a company's share capital includes—
any case where persons are, whether for payment or not, allotted shares in or debentures of the company in respect of and in proportion to (or as nearly as may be in proportion to) their holdings of shares in the company or of any class of shares in the company, and
any case where there are more than one class of share and the rights attached to shares of any class are altered.
The reference in subsection (1) above to a reduction of share capital does not include the paying off of redeemable share capital, and where shares in a company are redeemed by the company otherwise than by the issue of shares or debentures (with or without other consideration) and otherwise than in a liquidation, the shareholder shall be treated as disposing of the shares at the time of the redemption.