Corey Roush > Sidley Austin LLP > Washington DC, United States > Lawyer Profile
Sidley Austin LLP Offices

1501 K STREET, NW
WASHINGTON, DC 20005
DISTRICT OF COLUMBIA
United States
- Firm Profile
- Go to...
Corey Roush

Work Department
Antitrust and Competition
Position
Partner
Career
COREY ROUSH guides clients through contentious antitrust and consumer protection litigation and investigations, and navigates the antitrust regulatory aspects of merger clearance. Over his almost three decades of practice, he has had extensive experience representing clients before the Federal Trade Commission (FTC), the Antitrust Division of the U.S. Department of Justice (DOJ), and various state attorneys general. Corey has also represented clients in dozens of antitrust cases and class actions in federal district and appellate courts throughout the United States. He regularly draws on his vast experience to advise C-suites and boards on strategy and risk related to various antitrust and consumer protection issues.
Corey’s foremost goal in merger clearance is to get the deal cleared without litigation. To that end, he has gotten many intensely investigated deals cleared with and without divestitures in his career, including three in the last five years—most notably a $21B acquisition in the retail fuel industry that involved divestitures to three different buyers. That said, Corey’s strong litigation background has positioned him well to assist clients when the government decides to sue to block their transactions, and he has litigated several cases against the FTC and the DOJ to uphold proposed and consummated mergers, including the first live merger trial following the COVID outbreak.
Lawyer Rankings
United States > Antitrust > Merger control
(Leading partners)United States > Antitrust > Civil litigation/class actions: defense
Sidley Austin LLP frequently assists domestic and multinational corporations, trade associations, government entities, and individuals across the full spectrum of civil and criminal antitrust matters. The team operates under the leadership of Benjamin Nagin in New York, whose workload includes high-profile disputes and investigations related to payment systems, AI, and labor agreements. In Washington DC, Carie Mahan serves as an antitrust litigator, counselor, and risk advisor to her diverse client base. The team continues to expand, with Corey Roush joining from Akin in June 2024.
Lawyer Rankings
- Leading partners United States > Antitrust > Merger control
- Civil litigation/class actions: defense United States > Antitrust
Top Tier Firm Rankings
- Investment fund formation and management > Alternative/hedge funds
- Tax > Financial products
- Industry focus > Sport
- Insurance > Insurance: non-contentious
- Tax > International tax
- Antitrust > Merger control
- Real estate > Real estate investment trusts (REITs)
- M&A/corporate and commercial > Shareholder activism
Firm Rankings
- Insurance > Advice to insurers
- Environment > Environment: litigation
- Dispute resolution > Appellate: courts of appeals / Appellate: supreme courts (states and federal)
- Transport > Aviation and air travel: finance
- Finance > Commercial lending
- Media, technology and telecoms > Cyber law (including data privacy and data protection)
- Dispute resolution > E-discovery
- Energy > Energy transactions: oil and gas
- Environment > Environment: transactional
- Dispute resolution > General commercial disputes
- Dispute resolution > International litigation
- Dispute resolution > Product liability, mass tort and class action - defense: consumer products (including tobacco)
- Dispute resolution > Product liability, mass tort and class action - defense: pharmaceuticals and medical devices
- Transport > Rail and road: litigation and regulation
- Dispute resolution > Securities litigation: defense
- Finance > Structured finance: securitization
- Finance > Capital markets: debt offerings
- Finance > Capital markets: equity offerings
- M&A/corporate and commercial > Corporate governance
- Energy > Energy regulation: electric power
- Energy > Energy transactions: electric power
- Environment > Environment: regulatory
- Labor and employment > ERISA litigation
- Dispute resolution > International arbitration
- Intellectual property > Patents: litigation (full coverage)
- Finance > Project finance
- Real estate > Real estate
- Finance > Structured finance: derivatives and structured products
- Intellectual property > Trade secrets (litigation and non-contentious matters)
- Tax > US taxes: contentious
- Antitrust > Civil litigation/class actions: defense
- Finance > Commercial lending > Advice to direct lenders/private credit
- Labor and employment > Employee benefits, executive compensation and retirement plans: transactional
- Healthcare > Life sciences
- M&A/corporate and commercial > Private equity buyouts: large deals ($500m+)
- Finance > Restructuring (including bankruptcy): corporate
- M&A/corporate and commercial > Venture capital and emerging companies
- M&A/corporate and commercial > M&A: large deals ($1bn+)
- Tax > US taxes: non-contentious
- Finance > Financial services regulation
- Dispute resolution > Product liability, mass tort and class action - defense: toxic tort