Answer:
Yes, Elliot breached his fiduciary duties with Merrill Lynch.
Explanation:
Since Elliot is an employee of Merrill Lynch, he owes the company fiduciary duties, that means that Elliot should always act on the best interest of his employer (Merrill Lynch), and he must also avoid any personal conflict of interest between him and his employer.
Elliot is not acting on the best interest of his employer, instead he is benefiting from the position given to him by his employer (by requiring advice from other employees).