Roger Cooper’s practice focuses on complex civil litigation, with an emphasis on shareholder, class action and derivative actions arising out of securities, M&A, corporate governance and other commercial disputes.

In securities litigation, he regularly represents both issuers and underwriters, and has particular experience representing foreign issuers and handling matters with cross-border or international issues. In the M&A context, he regularly litigates on behalf of targets, acquirers, as well as financial advisors, in both friendly and hostile transactions.

Roger also routinely advises boards, company executives, and in house counsel on litigation and strategic considerations in connection with deals or other corporate events, usually in close collaboration with Cleary’s corporate and transactional attorneys.

His clients include Allergan, American Express, Applied Materials, Assured Guaranty, Atlantic Power, Dun & Bradstreet, Kindred Healthcare, Petrobras, Ryanair, and Whirlpool.

Roger joined the firm in 2003 and became a partner in 2011.

Notable Experience

  • American Express in federal securities and derivative litigation arising out of claims against Wells Fargo for alleged unauthorized accounts.

  • Assured Guaranty in a number of derivatives litigations relating to the termination of credit default swap (CDS) contracts, including one in which he is currently defending against a claim brought by Lehman Brothers International (Europe) for more than $1 billion relating to the termination of CDS.

  • Atlantic Power Corporation in federal securities class action litigation under the Securities Exchange Act of 1934 (In re Atlantic Power Corp. Secs. Litig.), where the Cleary team secured dismissal of the complaint before the district court; that ruling is now on appeal to the First Circuit.

  • Bank of America Merrill Lynch in ongoing individual securities actions filed across the country in connection with the issuance and underwriting of residential mortgage-backed securities (RMBS) and has secured the dismissal of RMBS complaints in the Southern District of New York (IKB Intern’l v. Bank of America, et al.), and affirmance of that dismissal by the Second Circuit and Tennessee state court (First Community Bank v. First Tennessee Bank, et al.).

  • CARBO Ceramics in a federal securities class action litigation under the Securities Exchange Act of 1934 in securing dismissal of the complaint (In re Carbo Ceramics Inc. Stock and Options Secs. Litig.).

  • Citigroup and affiliates in antitrust class action litigation alleging a conspiracy in the sale of Mexican Government Bonds. 

  • DBS Satellite Services (Yes), its CEO and CFO in securities class action litigation related to financial disclosures.

  • Kindred Healthcare and its board in successfully defeating a preliminary injunction motion in Delaware Chancery Court brought by a shareholder alleging breaches of fiduciary duty.

  • The board of directors of Kindred Healthcare in shareholder derivative litigation related to its False Claims Act settlement with the DOJ.

  • Leading investment banks and other financial institutions in securing dismissals of class and institutional investor actions in connection with claims arising out of the underwriting of securities issued by Lehman Brothers and the underwriting of securities issued by Royal Bank of Scotland.

  • Merrill Lynch in a securities fraud case relating to its sale of notes from a collateralized debt obligation (Loreley Financing v. Merrill Lynch).

  • Petrobras and other defendants in federal securities class action litigation in what is the largest securities class action ever brought against a non-U.S. issuer (In re Petrobras Securities Litigation).

  • Petitioner financial institutions in California Public Employees’ Retirement System (CalPERS) v. ANZ Securities Inc. et al., in obtaining a landmark ruling from the U.S. Supreme Court holding that class-action tolling does not apply the Securities Act’s statute of repose. 

  • Sky Solar and certain offcers and directors in securities class action litigation related to its IPO.

  • Synutra International and a special committee of the board in state and federal shareholder litigation alleging breaches of fiduciary duty related to a taking-private transaction.

See More

Selected Activities

  • Member, Committee on Securities Litigation, Association of the Bar of the City of New York
  • Board Member, The Fund for Modern Courts


2019 Developments in Securities and M&A Litigation (with Jared Gerber and Mark McDonald), March 3, 2020, (republished in the Harvard Law School Forum on Corporate Governance and Financial Regulation, March 17, 2020

The Latest in the Toshiba Securities Litigation: Perils for Foreign Issuers,” Cleary Gottlieb Alert Memo (February 20, 2020), co-authored with Jared Gerber and Les Silverman

Second Circuit Affirms Applicability of Section 10(b)’s Heightened Pleading Standard on Wrongdoing Underlying Misstatement or Omission,” Cleary Gottlieb Alert Memo (December 16, 2019) co-authored with Carmine D. Boccuzzi Jr., and Jared Gerber; republished by Columbia Law School Blue Sky Blog, (December 17, 2019)

Delaware Chancery Court Opinion Raises New Considerations for Special Litigation Committees,” Cleary Gottlieb Alert Memo (December 13, 2019) co-authored with Jared Gerber, Victor Hou, Rahul Mukhi, Rishi Zutshi, and Mark McDonald; republished by the Harvard Law School Forum on Corporate Governance and Financial Regulation

Cleary Gottlieb Offers 2019 Mid-Year Developments in Securities and M&A Litigation,” Columbia Law School Blue Sky Blog, (August 27, 2019), co-authored with Jared Gerber, Vanessa Richardson, and David Wagner

Appraisal Update: Unaffected Market Price Makes a Comeback,” Cleary M&A and Corporate Governance Watch blog, (July 24, 2019), co-authored with Mark McDonald; republished by the Harvard Law School Forum on Corporate Governance and Financial Regulation, August 6, 2019

Second Circuit Holds General Statements of Regulatory Compliance Cannot Sustain Securities Fraud Claim,” Cleary Gottlieb Alert Memo (March 8, 2019) co-authored with Alexis Collins, Jared Gerber, Breon S. Peace, Matthew D. Slater, and Lisa Vicens; republished by the Harvard Law School Forum on Corporate Governance and Financial Regulation (March 23, 2019)

Corwin’s Nuance,” Harvard Law School Forum on Corporate Governance and Financial Regulation (December 2018) co-authored with Meredith Kotler, Mark McDonald, and April Collaku

Second Corwin Denial Due to Restatement Process,” Harvard Law School Forum on Corporate Governance and Financial Regulation, (December 2018), co-authored with Meredith Kotler, Mark McDonald, and Kal Blassberger

Fourth Circuit and Eighth Circuit Address Injury in Data Breach Cases” Privacy & Security Law Report, (December 2018), co-authored with Miranda Gonzalez 

M&A Litigation,” The Mergers & Acquisitions Review, (October 2018), co-authored with Meredith Kotler and Vanessa Richardson

Circuit Split on Morrison Application,” Harvard Law School Forum on Corporate Governance and Financial Regulation, (August 12, 2018), co-authored with Jared Gerber, Leslie N. Silverman, Adam Fleisher, and Alex McCown

9th Circ. Exposes Foreign Issuers to New Liability,” Law360, (July 31, 2018), co-authored with Jared Gerber, Les Silverman, and Adam Fleisher 

Lorenzo v. SEC: Will the Supreme Court Further Curtail Rule 10b-5?” Harvard Law School Forum Corporate Governance and Financial Regulation, (July 30, 2018), co-authored with Matt Solomon and Les Silverman

Ninth Circuit Addresses Requirements for Pleading Section 10(b) Claims Concerning Unsponsored ADRs,” Cleary Gottlieb Alert Memo (July 26, 2018), co-authored with Joon H. Kim, Meredith Kotler, Adam E. Fleisher, Jared Gerber, and Leslie N. Silverman

SCOTUS: American Pipe Tolling Doesn’t Apply to Successive Class Actions,” Cleary Gottlieb Alert Memo (June 14, 2018), co-authored with Jared Gerber, Christina Karam, and Matthew D. Slater

Supreme Court Holds That Securities Act Class Actions May Be Brought In State Court,” Cleary Gottlieb Alert Memo (March 27, 2018),  co-authored with Meredith Kotler, Jared Gerber, Abena Mainoo and Gregory N. Wolfe 

Yahoo! Enters Proposed Settlement in Data Breach Securities Class Action,” Cleary Cybersecurity and Privacy Watch blog (March 8, 2018),  co-authored with Rahul Mukhi and Kal Blassberger 

M&A Litigation,” Law Review’s The Mergers and Acquisitions Review, 11th edition (October 25, 2017) co-authored with Meredith Kotler and Vanessa Richardson 

Supreme Court to Consider Whether Class Actions Under The Securities Act Of 1933 May Be Brought In State Courts,” Cleary Gottlieb Alert Memo (July 6, 2017)

“Derivatives,” Business and Commercial Litigation in Federal Courts, Fourth Edition (Thomson Reuters and the American Bar Association Section of Litigation) (February 23, 2017), co-authored with Thomas Moloney, Carmine Boccuzzi and Rishi Zutshi

“Rebutting the Presumption of Reliance in Securities Class Actions,” New York Law Journal: Complex Litigation (June 10, 2013), co-authored with Matthew M. Bunda and Anthony M. Shults

Chapter, “Derivatives Litigation,” Business and Commercial Litigation in Federal Courts (ed. Robert L. Haig, 2011), co-authored with Thomas J. Moloney and Carmine D. Boccuzzi

“First Department Limits Securities Fraud Holder Claims,” New York Law Journal Litigation (February 28, 2011), co-authored with Matthew M. Bunda

“The Primacy of Standing in Mortgage-Backed Securities Class Actions,” U.S. Law Week (Vol. 78, No. 42, May 11, 2010), co-authored with Mitchell A. Lowenthal

“Broad Ruling in Enron Bankruptcy Appeal Restores Certainty to ‘Settlement Payment’ Safe Harbor,” Derivatives (Vol. 16, Issue 11, April 12, 2010), co-authored with Avram E. Luft

The Continuing Saga of Westar Energy v. Lake: Advancement of Reasonable Legal Fees in Federal District Court,” White Collar Crime (Vol. 23, Issue 3, Dec. 2008), co-authored with Lewis J. Liman