Dear Querist
as per section 15 of Hindu Succession Act-1956, he husband will also be a shareholder in this matter.
read the section as below:-
15. General rules of succession in the case of female Hindus
(1) The property of a female Hindu dying intestate shall devolve according to the rules set out in section 16 :
(a) firstly, upon the sons and daughters (including the children of any pre-deceased son or daughter) and the husband;
(b) secondly, upon the heirs of the husband;
(c) thirdly, upon the mother and father;
(d) fourthly, upon the heirs of the father; and
(e) lastly, upon the heirs of the mother.
as per clause (a) her sons & daughters and the Husband will be the legal heirs, hence his share can not be concealed.