Mark Cuban has issued a stark warning to self-insured employers about the potential for lawsuits related to pharmacy rebates in employee benefits programs. Highlighting the increasing legal pressures, Cuban emphasizes that it's not a matter of if, but when these employers will face class action lawsuits that could surpass previous major settlements, such as those in the tobacco industry. Recent lawsuits against companies like Wells Fargo and Johnson & Johnson for alleged mismanagement and inflated drug prices underline the growing scrutiny under the Employee Retirement Income Security Act (ERISA). Employers are advised to thoroughly review their contracts and claims data to ensure fiduciary compliance and mitigate potential legal risks.