This is apparently a big story: Eli Lily is dropping Caremark as their PBM and moving to Rightway (same as Tyson Foods had done a few years back). Rightway is a fee service PBM (no rebates, odd pricing, etc).
I feel like CareMark is really endangered
Source:
https://www.reuters.com/business/healthcare-pharmaceuticals/eli-lilly-drops-cvs-dr-g-plan-workers-after-novo-obesity-deal-bloomberg-news-2025-11-12/