thanks snouty.A question:If an entity has more than 20% of the...

thanks snouty.
A question:
If an entity has more than 20% of the company doesn't it have to declare intentions? If so, then if 2 entities are acting together and collectively have more than 20 don't they have to declare their joint intentions? if so this would indicate that smaller and Investors mutual are not acting together.
shan