More than five years after receiving final court approval, a massive $2.67 billion antitrust class-action settlement involving Blue Cross Blue Shield is finally entering its payout phase. Eligible claimants could begin seeing money deposited into their bank accounts within days, as the distribution process is scheduled to begin in May, according to the settlement website . The settlement comes from a long-running lawsuit that accused Blue Cross Blue Shield and its affiliated insurers of violating antitrust laws by limiting competition in the health insurance market. Plaintiffs argued that the Blue Cross Blue Shield system was structured to reduce overlap among its regional plans, thereby restricting competition in certain parts of the U.S. As a result, the lawsuit claimed it was harder for rival insurance companies to enter those markets. This lack of competition may have reduced consumer choice and contributed to higher healthcare costs for customers in some regions, according to the allegations.…