Mark's Ethical Dilemma: Employer Loyalty

Mark is a portfolio manager for a large investment firm. He is approached by a technology startup that offers to pay him a commission for recommending their stock to his clients. Mark is aware that accepting this commission might conflict with his employer's policy on receiving external compensation. However, he believes that the stock could be beneficial for his clients' portfolios.

According to the CFA Institute Code of Ethics and Standards of Professional Conduct, which of the following actions would best demonstrate Mark's loyalty to his employer while remaining compliant with ethical standards?