[refurb]

Precisely. PBM rebates are based on sales as well. Drug company gets more sales by making their drug “preferred” and PBM gets a rebate. It’s not a kickback.

[Dylan16807]

Precisely what? If the PBM gets money then that's not the customer. Being paid for marking something as preferred is a kickback.

If the PBM buys something themselves and gets money back, that wouldn't be a kickback.

Just like a customer buying something and getting money back.

But when you have a buyer on one side, and a separate entity getting the money back, that's probably a kickback.