корпоративное действие(Any action a publicly-traded company takes that affects its shareholders and/or bondholders, whether positively or negatively. Common examples of corporate action include stock splits, where the company doubles the number of its shares, and calling bonds, where a company deprives bondholders of coupons to which they would otherwise have been entitled. Corporate actions must be approved by the board of directors and in many circumstances shareholders may vote on the measures as well. wikipedia.org)
