Acquiring Company
Merck
Acquired Company
Prometheus Biosciences
RahwaySan DiegoManufacturingBiotechnologyHealthcareHealth CareDescription
Merck & Co., Inc. has completed the acquisition of Prometheus Biosciences, Inc. for approximately $10.8 billion. The deal focuses on the anti-TL1A antibody, tulisokibart, which will strengthen Merck's portfolio in immunology. This acquisition highlights Merck's commitment to advancing treatment options for patients with autoimmune diseases.
Who to call at Merck, and when
When Merck changes hands, the new owners review vendors, systems and leadership. That is when the door opens.
- An alert the day Merck raises, hires an executive or expands, scored against what you sell
- The decision-makers there, with verified emails
- Who you already know at Merck, from your own LinkedIn network
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Frequently asked
Who acquired Prometheus Biosciences?
Prometheus Biosciences was acquired by Merck, based in Rahway. The deal was reported on August 4, 2026. Merck is publicly traded (MRK) and operates in Manufacturing.
When did Merck acquire Prometheus Biosciences?
Merck's acquisition of Prometheus Biosciences was reported on August 4, 2026. Merck & Co., Inc. has completed the acquisition of Prometheus Biosciences, Inc. for approximately $10.8 billion. The deal focuses on the anti-TL1A antibody, tulisokibart, which will strengthen Merck's portfolio in immunology. Fundz records the date the transaction was first publicly reported, sourced from filings and company announcements.
What does Prometheus Biosciences do?
Prometheus Biosciences, Inc. is a privately held biotechnology company pioneering a precision medicine approach to the discovery, development, and commercialization of novel therapeutic and companion diagnostic products for the treatment and diagnosis of IBD. It is privately held, and is based in San Diego.
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