# CVS Health The Rhode Island healthcare conglomerate whose Caremark unit is the **largest pharmacy benefit manager in America** — the biggest single lever in the [[Pharmacy Benefit Managers]] machine. The modern company is a vertical-integration archetype assembled by acquisition: the retail drugstore chain, plus Caremark (PBM, 2007), plus Aetna (insurance, 2018) — insurer, benefit manager, and pharmacy under one roof, profiting on every side of the transaction it nominally negotiates. ## The Caremark Lever Caremark's formulary decisions move markets. The cleanest demonstration: effective July 2025 it **dropped [[Eli Lilly]]'s Zepbound** — the best-selling obesity drug in America — to make [[Novo Nordisk]]'s Wegovy its preferred GLP-1, forcing patient switches at scale; Zepbound returned to the formulary in October 2026. Whatever the rebate economics behind each move, the episode showed a single PBM rearranging the GLP-1 market that the [[Most-Favored-Nation Drug Pricing Deals]] were simultaneously claiming to discipline on price. CVS is a respondent in the FTC's insulin-rebate case against the Big Three and, unlike [[Cigna]] (which settled in February 2026), remained in negotiation — making it a bellwether for whether the FTC's structural-reform template becomes industry-wide. It likewise faces the delinking and spread-pricing provisions of the February 2026 PBM reform law, effective around 2029. ## Leadership and Strain The conglomerate model has strained: CEO Karen Lynch was replaced by veteran PBM executive **David Joyner** in late 2024 amid Aetna underperformance and activist pressure, retail stores have closed by the hundreds, and the company navigates the same insurer-populism wave that broke over [[UnitedHealth Group]] — with the added exposure that its PBM is the explicit target of the only drug-pricing law actually passed in the Trump era. ## Connections - [[Pharmacy Benefit Managers]] — Caremark is the market leader - [[Eli Lilly]] / [[Novo Nordisk]] — The GLP-1 formulary war - [[UnitedHealth Group]] / [[Cigna]] — Fellow Big Three parents - [[Big Pharma]] — The hub frame