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Sector·Apr 23, 2026·6 min read
Merck
Lilly

Merck vs Lilly: Who Is Winning the 2026 Pharma M&A Race?

David Najork
David Najork
Founding Engineer · Apr 23, 2026 · 6 min read
Combined Deal Value
$13.4B
Total Deals Tracked
6
Activity Period
2026
Primary Sector
Healthcare
Tracked deals · 7
TypeTargetAcquirerValueDate
ACQ
Curevo Vaccine
Curevo Vaccine
Lilly
Lilly
$1.5BMay 28, 2026
ACQ
LimmaTech Biologics
LimmaTech Biologics
Lilly
Lilly
$4BMay 26, 2026
ACQ
Engage Bio
Engage Bio
Lilly
Lilly
$202MMay 20, 2026
ACQ
Terns Pharmaceuticals
Terns Pharmaceuticals
Merck
Merck
$6.7BMay 6, 2026
ACQ
Cidara
Cidara
Merck
Merck
$9.2BFeb 3, 2026
ACQ
Ajax Therapeutics
Ajax Therapeutics
Lilly
Lilly
$2.3BApr 28, 2026
ACQ
Cidara Therapeutics
Cidara Therapeutics
Merck
Merck
Apr 30, 2026
OVERVIEW

Merck and Lilly Execute $13.4B Pharma Acquisition Strategy

Merck and Lilly announce acquisitions totaling $13.4 billion in 2026. The deals include Terns Pharma, Centessa Pharmaceuticals, Kelonia Therapeutics, and CrossBridge Bio. These acquisitions aim to bolster their oncology and biotechnology pipelines. Merck targets Terns Pharma for its chronic myeloid leukemia candidate, while Lilly focuses on expanding its biotechnology capabilities. The acquisitions fill critical gaps in their respective portfolios, enhancing their competitive positions in oncology and biotechnology. Terns Pharma Deal Centessa Pharmaceuticals Deal

DEAL BREAKDOWN

Detailed Analysis of Merck and Lilly's 2026 Acquisitions

Merck acquires Terns Pharma for $6.7 billion, gaining a novel candidate for chronic myeloid leukemia. This acquisition strengthens Merck's hematology pipeline. Lilly acquires Centessa Pharmaceuticals for $6.3 billion, enhancing its pharmaceutical portfolio with advanced drug candidates. Lilly's $2 billion acquisition of Kelonia Therapeutics expands its biotechnology reach with innovative gene therapy technologies. Lilly also acquires CrossBridge Bio for $300 million, securing next-generation dual-payload antibody-drug conjugates.

STRATEGIC CONTEXT

Competitive Pressures Drive Pharma M&A Surge

The pharmaceutical sector faces increased pressure to innovate due to rising competition and patent expirations. Companies seek to diversify and strengthen their pipelines to maintain market positions. Competitors like Pfizer pursue similar oncology and biotechnology assets. Merck and Lilly's aggressive acquisition strategy outpaces Pfizer's recent moves, securing critical assets before competitors can act. Their willingness to pay premium prices reflects the urgency to fill portfolio gaps and gain a competitive edge.

WHAT TO WATCH

Regulatory and Competitive Risks in Pharma M&A

The Federal Trade Commission may scrutinize these acquisitions for antitrust concerns due to market consolidation. Integration risks exist with Terns Pharma's chronic myeloid leukemia candidate, particularly in aligning research teams. Pfizer may respond with a counter-acquisition or strategic partnership to regain competitive ground. Monitor the pipeline progress of acquired assets in Merck and Lilly's Q3 earnings reports.

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