The Price of Insulin (1923-2024)

The discoverers sold the insulin patent for $1 'so it would belong to the world.' A century later the list price of a flagship analog had climbed ~13x to almost $300 a vial - until 2022-23 caps and ~70% maker cuts snapped it back near $66. Plotted on one linear curve: the gift, the climb, the hidden rebate gap, and the cap.