Announcement: Moody's Ratings says that Merck's acquisition of Terns adds a high-upside leukemia candidate with clinical execution risk. Global Credit Research- 26 Mar 2026. New York, March 26, 2026-- Moody's Ratings said that on 25 March, Merck& Co., Inc. announced that it entered into a definitive agreement to acquire Terns Pharmaceuticals, Inc. for approximately $5.7 billion net of acquired cash.
Moody's Ratings (Moody's) assigned a Aa3 rating to the new senior unsecured notes offering of Merck & Co., Inc. (Merck). There are no changes to Merck's existing ratings including the Aa3 senior unsecured long-term rating, the Aa3 senior unsecured revolving credit facility, the Aa3 backed senior uns...
Moody's Ratings (Moody's) said that on 14 November, Merck & Co., Inc. ("Merck"; Aa3 stable) announced that it entered into a definitive agreement to acquire Cidara Therapeutics, Inc. ("Cidara") for approximately $9.2 billion in cash. The acquisition meaningfully strengthens Merck's respiratory drug ...
Moody's Ratings (Moody's) assigned a Aa3 rating to the new senior unsecured notes offering of Merck & Co., Inc. ("Merck"). There are no changes to Merck's existing ratings including the Aa3 senior unsecured long-term rating, the Aa3 senior unsecured revolving credit facility, the Aa3 backed senior u...
Moody's Ratings (Moody's) says that on 9 July, Merck & Co., Inc. ("Merck"; Aa3 stable) announced that it entered into a definitive agreement to acquire Verona Pharma plc ("Verona") for approximately $10 billion. The acquisition will meaningfully strengthen Merck's cardio-pulmonary product portfolio,...
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