What Happened to Aetna Inc.?

Aetna Inc. traces its origins back to 1853, initially as a life insurance company, and grew to become a major player in the American managed healthcare landscape, offering a wide array of insurance products including medical, pharmaceutical, dental, and behavioral health plans. A pivotal moment in its history occurred on November 28, 2018, when CVS Health completed its acquisition of Aetna for approximately $69 billion. This merger aimed to create a more integrated healthcare model, combining Aetna's insurance capabilities with CVS's pharmacy and retail clinic footprint.

Following the acquisition, Aetna operated as a standalone unit within CVS Health. However, the healthcare benefits segment, which includes Aetna, faced significant challenges in 2024, marked by higher-than-expected medical costs and a decline in Medicare Star Ratings. This led to investor disappointment and a leadership shake-up at CVS Health, with David Joyner taking over as CEO and Steve Nelson being appointed President of Aetna in late 2024.

The year 2025 and particularly 2026 have seen a strategic turnaround for Aetna. A key decision was to exit the Affordable Care Act (ACA) individual and family plans market, with coverage terminating on December 31, 2025. This move, impacting about one million members across 17 states, was driven by persistent underperformance and a lack of a viable path to profitability in that segment. Concurrently, Aetna has refocused and expanded its Medicare Advantage offerings for 2026, introducing plans with enhanced benefits, $0 copays for certain services, and expanding Special Needs Plans (SNPs) in new counties. However, this expansion also involved a strategic reduction, as Aetna dropped nearly 90 Medicare Advantage plans across 34 states for 2026 to improve overall performance.

Financially, Aetna's improved performance has been a major driver for CVS Health's strong results in 2026. In Q1 and Q2 2026, Aetna's health care benefits segment reported significant increases in adjusted operating income and an improved medical benefit ratio, leading CVS Health to raise its full-year 2026 earnings guidance multiple times. The company is also heavily investing in digital transformation and AI, launching a fully-digital benefits onboarding experience for four million members in 2026 and integrating conversational AI into its app. Furthermore, Aetna is leading efforts to simplify prior authorization processes, standardizing 88% of its volume and processing 83% in real-time by April 2026.

As of September 12, 2026, Aetna remains a crucial component of CVS Health's strategy to deliver integrated healthcare. While its total medical membership stood at approximately 26 million members at the end of Q2 2026, a slight decline from the previous year primarily due to the ACA exit, its profitability and operational efficiency have significantly improved under new leadership and strategic adjustments. The company continues to leverage the broader CVS Health ecosystem to offer differentiated member experiences and is focused on innovation in areas like digital engagement and care coordination.