- antitrust aspects of its $21 billion acquisition of Pharmacyclics, Inc., a biopharmaceutical company
- antitrust aspects of its $5.8 billion acquisition of Stemcentrx Inc., a developer of oncology compounds targeting various types of solid tumor cancers
- antitrust aspects of its $70.5 billion acquisition of Allergan, Inc., a multi-specialty health care company that developed and commercialized pharmaceutical, biological, medical device and over-the-counter products
- antitrust aspects of its $600 million sale of its Branded Respiratory Portfolio to AstraZeneca
- antitrust aspects of its $39 billion sale of its global generic pharmaceuticals business to Teva Pharmaceutical Industries Ltd., one of the most complex pharmaceutical mergers ever reviewed by the FTC
- antitrust aspects of its $2.9 billion acquisition of LifeCell Corporation, a developer and marketer of tissue repair products for use in reconstructive, urogynecologic, and orthopedic surgical procedures
- antitrust aspects of its $2.47 billion acquisition of Zeltiq Aesthetics Inc., a medical technology company that developed and commercialized products using a proprietary controlled-cooling technology platform
- antitrust aspects of its $2.1 billion acquisition of KYTHERA Biopharmaceuticals, Inc., a clinical-stage biopharmaceutical company focused on novel prescription products in aesthetic medicine
- in its pending approximately $8 billion acquisition of Loxo Oncology, Inc.
- $5.4 billion acquisition of the animal health business of Novartis AG
- $960 million acquisition of CoLucid Pharmaceuticals, Inc.
- $410 million sale of veterinary assets to Virbac SA
- in its strategic review of Elanco, its animal health division, concluding with the initial public offering of a minority stake in Elanco
- acquisition by Elanco, its animal health division, of Lohmann SE, a supplier of poultry vaccines and feed additives
- antitrust aspects of a joint venture with DEKA to develop a novel subcutaneous insulin pump
- antitrust aspects of its $24.2 billion acquisition by Actavis, Inc.
- antitrust aspects of its $2.9 billion acquisition of Aptalis Pharma, Inc., a developer of products for the treatment of gastrointestinal diseases and cystic fibrosis
$7.6 billion sale to Community Health Systems, Inc.
and its portfolio company National Surgical Hospitals, Inc. (d/b/a National Surgical Healthcare) in its $760 million sale to Surgery Partners, Inc.
in Agliti’s combination with Federal Street Acquisition Corp. (FSAC), a SPAC sponsored by Thomas H. Lee Partners, in a new holding company formed by FSAC named Agiliti Health, Inc., having an implied enterprise value of approximately $1.74 billion
- antitrust aspects of its $21.3 billion acquisition of Swiss-American orthopedic devices maker Synthes Inc., with Weil negotiating a limited divestiture in order to obtain antitrust clearance
- antitrust aspects of its $4.3 billion acquisition of Abbott Medical Optics (AMO)
- antitrust aspects of its $2 billion sale of its Cordis business, a developer and manufacturer of interventional vascular technology, to Cardinal Health, Inc.
- antitrust aspects of its acquisition of Novira Therapeutics Inc., a clinical-stage biopharmaceutical developer of novel therapies for curative treatment of chronic hepatitis B virus (HBV) infection
- as participant in a consortium of investors led by TPG Capital, Welsh, Carson, Anderson & Stowe and Humana, Inc., in the consortium's $4.1 billion take-private of Kindred Healthcare, Inc.
- as participant in a consortium of investors led by TPG Capital, Welsh, Carson, Anderson & Stowe and Humana, Inc., in the consortium's $1.4 billion acquisition of Curo Health Services, LLC, a provider of hospice services
- $25 billion exchange of Merial, its animal health business, for the consumer healthcare business of Boehringer Ingelheim GmbH
- $20.1 billion takeover of Genzyme, a biotechnology firm
- $11.6 billion acquisition of Bioverativ Inc.
- $4.8 billion acquisition of Ablynx NV
- up to $750 million acquisition of Protein Sciences Corporation
- antitrust aspects of its proposed $5.175 billion acquisition of 2,186 Rite Aid stores and related assets
- antitrust aspects of its $23.8 billion acquisition of the 55% it did not already own of Alliance Boots GmbH, a Switzerland-based international pharmacy-led health and beauty group, and in its previous $6.7 billion purchase of a 45% interest in Alliance Boots