As the Demat Concept came into existence, the member is not directly a member in the company. The shares of the company are held in the name of the Deopsitory, e.g. in India, NSDL and CDSL. However, the shareholder becomes the beneficial holder of the shares. The depositories make a list of members for a particular corporate action when due, e.g. dividend, bonus shares, split, AGM, etc. and the company takes the action on same list provided.
Further, as mentioned above, the depositories have a list of shareholders of all companies.
in the demat concept, all the shares of a shareholder are held with depository. So, the things such as nominations, electronic fund transfer mandate, etc. is handled by the depository, and there is no need to inform separately to the company. if you inform the depository about the nomination, and it is registered, the same is applicable to all the shares held in the demat account.
Regards,
CA. Amol G. Kabra