What they do
Arnold & Porter is a law firm with regulatory, litigation and transactional practices; its M&A practice advises on public and private acquisitions, carveouts, cross-border deals and going-private transactions, with a focus on the middle market.
- Services
- M&A law, Capital markets law, Private equity law, Banking and finance law, Competition and regulatory approvals, Restructuring and insolvency law
- Specialties
- Aerospace, Defense, & National Security, Consumer Products & Retail, Energy, Financial Services, Life Sciences & Healthcare, Manufacturing, Technology, Media, Telecommunications
- Kinds of deal
- Carveouts, Cross-border deals, Going-private transactions
- Deal size
- Mid market From their websiteRecorded deals: median A$672m
- Clients
- Corporates
- Team
- 1000
From arnoldporter.com, checked 7 Nov 2026: /en/about/firm, /en/services/capabilities/practices/mergers-and-acquisitions, /en/services/capabilities
Deals
Columns
1 of 1 deals
| Advisers | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Feb 2025 | Mayne Pharma Group | – | Cosette Pharmaceuticals | Scheme | Legal adviser to Mayne Pharma Group (target) | Withdrawn | 672.0 | Biotech and pharmaceuticals | Jefferies (sell-side)Gilbert + Tobin (sell-side)Santander (buy-side)UBS (buy-side)Corrs Chambers Westgarth (buy-side)Ropes & Gray (buy-side)Davis Wright Tremaine (sell-side)EY (sell-side)Deloitte (sell-side) | Avista Healthcare Partners acquisition of Mayne Pharma Group |
Listed on their website
- Avantor divestiture of clinical service business to Audax Private Equity approximately $650 million
- Pharmacosmos acquisition of G1 Therapeutics approximately $405 million
- Sterling Bancorp sale to EverBank $261 million
- Strategic Materials acquisition by Sibelco
- CGI Federal acquisition of Aeyon
- Resolute Energy merger with Cimarex $1.6 billion
Transactions the firm lists on its own website, checked 7 Nov 2026. Those FundComb has recorded link to the deal.
Offices and contact
Offices
- Washington, D.C.Head office