I worked for company V with a H1-B.
Company A bought V and spined off several product lines of company V to the company B. I am designated to be with company B.
My questions:
(1) Is a H1-B transfer filing by company B needed ?
(2) In terms of payroll, I will be with "V"-> "A for several days"->"B",
Does A need tyo do anything about it ?