• Home
  • News
  • Fortune 500
  • Tech
  • Finance
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
FinanceStrategy

What went wrong at CVS? Departing CEO Karen Lynch’s reign started brilliantly, then unraveled fast

Shawn Tully
By
Shawn Tully
Shawn Tully
Senior Editor-at-Large
Down Arrow Button Icon
Shawn Tully
By
Shawn Tully
Shawn Tully
Senior Editor-at-Large
Down Arrow Button Icon
October 19, 2024, 5:00 AM ET
Karen Lynch had a grand strategic vision for CVS, but seemingly ran out of time.
Karen Lynch had a grand strategic vision for CVS, but seemingly ran out of time. Jessica Chou for Fortune

Karen Lynch, a superstar CEO championing the biggest of big ideas, is out.

Recommended Video

As chief of corner drugstore and health insurance colossus CVS, Lynch headed the largest Fortune 500 enterprise, measured by sales, of any female CEO, and for years reigned as the most powerful woman in American business. In her first two years after being chosen for the top job in late 2020, Lynch seemed on the road to glory. By late 2022, she’d lifted CVS’s share price from $70 to roughly $110. Investors were buying her daring new strategy: making CVS a one-stop shop for pharmacy services and basic care, right in their own neighborhoods, augmented by hands-on, data-driven management from their in-house insurer that reminded folks to refill prescriptions and get their annual physical.

Lynch pledged to “revolutionize health care as we know it” by repurposing thousands of CVS’s more than 9,000 stores into either fully dedicated providers of such services as diabetic retinopathy treatment, cholesterol screening, and mental health counseling, or hybrid retail and primary care centers called HealthHUBs. CVS would then store tons of data on patients’ conditions at its Aetna insurance arm, whose costs would fall because seniors were getting preventive care that curbed heart disease and other chronic conditions that account for the bulk of our health care spending. Rival insurers would also reward CVS with part of the savings they achieved from the spread of primary care from faraway doctors’ offices requiring long waits, to the CVS just around the block, where you could also pick up your pills and buy shampoo and candy bars.

It was an intriguing vision that targeted our hugely expensive, largely consumer-unfriendly health care system. But Lynch couldn’t fully deliver on the paradigm that’s already starting to upend the current regime, and where CVS will continue playing a pivotal role going forward—one that will likely determine whether it rebounds from its current tailspin.

At press time, CVS hadn’t responded to a Fortune email requesting comment.

CVS underperforms on already low expectations

On Oct. 18, CVS disclosed that its heretofore weak financial performance was even worse than the low expectations that had already pushed big investors, including activist Glenview Capital, to demand changes in the C-suite. The board preannounced that earnings for Q3 would prove far lower than both the company’s forecast and Wall Street’s predictions. CVS posited earnings per share at $1.05 to $1.10, well below the FactSet consensus of $1.69. Accounting for most of the shortfall: extremely tight margins in the health benefits business at Aetna, and especially in its giant Medicare Advantage franchise. CVS disclosed that its medical cost ratio of premiums to expenses had soared from an estimated 91% to over 95%. “That represents some combination of providing benefits that are too rich and underpricing premiums,” says Michael Ha of Robert W. Baird.

The same press release stated that Lynch had “stepped down from her position in agreement with the company’s board of directors,” and would be replaced by David Joyner, a CVS veteran who’s been heading Caremark, the pharmacy benefits business.

Where Lynch’s transformation went awry

A trifecta of problems, some that started before she took the top job, ended a reign that appeared to start brilliantly, then unraveled fast. The first was CVS’s error in vastly overpaying for acquisitions, a practice that piled on amounts of capital so huge that only magical performance could provide shareholders with decent returns going forward. In the years following its successful acquisition of Caremark in 2007, CVS was thriving. By late 2017, its shares had jumped around threefold to $75. Then, it unveiled its acquisition of Aetna, where Lynch had risen to the position of heir apparent based on her skill in building the Medicare Advantage side.

CVS paid a gigantic $68 billion, or a 73% premium, for Aetna. The day of the announcement, the two companies boasted a combined market cap of $128 billion. Proof that CVS hasn’t come close to generating the extra profits needed to cover that Brobdingnagian price: Its valuation now stands at just $76 billion, only slightly higher than what it paid for Aetna. The Aetna lesson didn’t deter Lynch and the board. In 2023, CVS made another hugely expensive deal, purchasing Oak Street Health, owner of over 200 centers in 25 states providing care for the elderly, this time laying out $10.5 billion, 30% or $2 billion more than the target’s cap prior to clinching the purchase. CVS made still another big bet by acquiring Signify Health, a health care analytics provider, for $8 billion. The Oak Street and Signify buys signaled that CVS was making desperate moves, adding big pieces to bolster the complex construct that Lynch conceived, but that wasn’t performing.

CVS became a revolving door at the top, and the vision proved overly complex

Lynch also kept changing her group of lieutenants at an alarming rate. It isn’t clear if she kept choosing the wrong people for the wrong roles, or was unable to get the talent she recruited to do their best work. From the spring of 2023 through this month, no fewer than eight C-suite stalwarts, all of whom she’d hired after officially taking charge in February of 2021, departed. The exodus encompassed the head of Aetna, who left after less than a year; the CFO (whose statement cited health reasons); the chiefs of HR, communications, health care delivery, and the retail stores. Two other long-standing CVS execs exited as well: the general counsel and chief marketing officer.

The third and final rub: The lofty, intricate blueprint proved beyond Lynch’s capacity to implement. It was her predecessor, Larry Merlo, who launched the initial phase via the purchase of Aetna, the first time ever that a huge insurer combined with a pharmacy chain. Lynch extended the framework through her plan to bring primary care to America’s doorstep. Though the idea was a big one, CVS was getting a late start on the retail component, since Walgreens, Concentra, and sundry others, including Oak Street, were invading what promised to become a gigantic market. Besides, the culture formed from running drugstores clashed with the mindset required to manage a major insurer, making it difficult to mate Aetna’s data troves with the folks CVS attempted to lure to its stores for primary care. The sudden drop in profitability for Aetna’s Medicare Advantage arm further undermined the ambitious plan to meld the two businesses.

In the past couple of years, CVS has made scant mention of the original HealthHUB concept. The focus now appears to be on building out the well-established Oak Street network. And according to Ha of Baird, it’s an excellent strategy. “That initiative will drive their growth for the next decade,” he says. “Oak Street–style, value-based care is still the future for CVS.”

The pharmacy division, the health services division she set up, and the retail division are doing well. Aetna’s margins collapsed as the federal government reduced its payments to Medicare Advantage. UnitedHealthcare and Cigna are both suffering, too. That was unforeseen, but it happened just as Aetna increased its Medicare rolls by 300,000 seniors. That was either unlucky or an unforced error. This extremely personable, charismatic leader deserves great credit for developing and superbly articulating a vision. It may even turn out that Lynch just needed more time. But that was a luxury that was, at least for CVS, out of stock.

Fortune Brainstorm AI returns to San Francisco Dec. 8–9 to convene the smartest people we know—technologists, entrepreneurs, Fortune Global 500 executives, investors, policymakers, and the brilliant minds in between—to explore and interrogate the most pressing questions about AI at another pivotal moment. Register here.
About the Author
Shawn Tully
By Shawn TullySenior Editor-at-Large

Shawn Tully is a senior editor-at-large at Fortune, covering the biggest trends in business, aviation, politics, and leadership.

See full bioRight Arrow Button Icon

Latest in Finance

A computer screen with the Vanguard logo on it
CryptoBlockchain
Vanguard has a change of heart on crypto, lists Bitcoin and other ETFs
By Carlos GarciaDecember 2, 2025
6 hours ago
Anthropic cofounder and CEO Dario Amodei
AIEye on AI
How Anthropic’s safety first approach won over big business—and how its own engineers are using its Claude AI
By Jeremy KahnDecember 2, 2025
8 hours ago
Costco
BankingTariffs and trade
Costco sues Trump, demanding refunds on tariffs already paid
By Paul Wiseman and The Associated PressDecember 2, 2025
8 hours ago
Man on private jet
SuccessWealth
CEO of $5.6 billion Swiss bank says country is still the ‘No. 1 location’ for wealth after voters reject a tax on the ultrarich
By Jessica CoacciDecember 2, 2025
11 hours ago
Elon Musk, standing with his arms crossed, looks down at Donald Trump sitting at his desk in the Oval Office
EconomyTariffs and trade
Elon Musk says he warned Trump against tariffs, which U.S. manufacturers blame for a turn to more offshoring and diminishing American factory jobs
By Sasha RogelbergDecember 2, 2025
11 hours ago
layoffs
EconomyLayoffs
What CEOs say about AI and what they mean about layoffs and job cuts: Goldman Sachs peels the onion
By Nick LichtenbergDecember 2, 2025
11 hours ago

Most Popular

placeholder alt text
Economy
Ford workers told their CEO 'none of the young people want to work here.' So Jim Farley took a page out of the founder's playbook
By Sasha RogelbergNovember 28, 2025
4 days ago
placeholder alt text
Success
Warren Buffett used to give his family $10,000 each at Christmas—but when he saw how fast they were spending it, he started buying them shares instead
By Eleanor PringleDecember 2, 2025
17 hours ago
placeholder alt text
Economy
Elon Musk says he warned Trump against tariffs, which U.S. manufacturers blame for a turn to more offshoring and diminishing American factory jobs
By Sasha RogelbergDecember 2, 2025
11 hours ago
placeholder alt text
Success
Forget the four-day workweek, Elon Musk predicts you won't have to work at all in ‘less than 20 years'
By Jessica CoacciDecember 1, 2025
1 day ago
placeholder alt text
C-Suite
MacKenzie Scott's $19 billion donations have turned philanthropy on its head—why her style of giving actually works
By Sydney LakeDecember 2, 2025
18 hours ago
placeholder alt text
AI
More than 1,000 Amazon employees sign open letter warning the company's AI 'will do staggering damage to democracy, our jobs, and the earth’
By Nino PaoliDecember 2, 2025
19 hours ago
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.