Peter Isajiw


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Peter Isajiw

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Peter Isajiw concentrates his practice on complex commercial and securities litigation, in addition to regulatory investigations. He represents corporations, financial institutions, directors, officers, and individuals in a variety of state and federal court matters. Mr. Isajiw has represented clients in matters involving business disputes, securities laws and regulations, RICO, antitrust, fraud, breach of contract, breach of fiduciary duty, and corporate governance, among others. He also assists clients in connection with regulatory investigations conducted by the Department of Justice (DOJ), U.S. Securities and Exchange Commission (SEC), Financial Industry Regulatory Authority (FINRA), and U.S. Commodity Futures Trading Commission (CFTC). Mr. Isajiw has extensive experience with sophisticated electronic discovery (eDiscovery) and Data Privacy issues, areas of expertise that are essential in the context of modern litigation. He also devotes a significant amount of his time to pro bono matters.

In April 2013, Mr. Isajiw was named a “Rising Star” by the New York Law Journal. This recognition was provided to 44 attorneys under 40 who have established a record of accomplishments and demonstrated that they are top contributors to the practice of law and their communities. In September 2013, he was named a Super Lawyers “Rising Star,” a distinction given to no more than 2.5% of the metropolitan New York-area attorneys under 40. In October 2013, The Legal 500 US recognized Mr. Isajiw for having “'terrific attention to detail and subject matter knowledge.” He was also named a 2014 and 2015 Super Lawyer in New York in the areas of business litigation, securities litigation, and general litigation. From 2014 through 2016, The Legal 500 US identified Mr. Isajiw as a “Key Individual” in the Securities and Shareholder litigation bar. In 2015, he won a Burton Award for Distinguished Legal Writing for his article, “Cybersecurity Risks Reviewed: Directors and Officers Must Be Proactive and Prepared,” published in the Bloomberg BNA Corporate Accountability Report. The Burton Distinguished Legal Writing Award is given to only 35 authors from entries submitted by the nation’s 1,000 largest law firms and recognizes those who demonstrate clarity, knowledge and innovation in their published legal articles.

Prior to joining King & Spalding, Mr. Isajiw was a partner at Cadwalader, Wickersham & Taft. Immediately after graduating from law school, Peter served as a judicial law clerk to the Honorable Yvette Kane, of the U.S. District Court for the Middle District of Pennsylvania.


Mr. Isajiw is a frequent speaker at continuing legal education events including:

  • “New Developments in Private Securities Litigation”. Panelist at the 2017 The Thomson Reuters 35th Annual Federal Securities Institute

  • “In-House Broker/Dealer Lawyer Roundtable” Panelist at the 2016 PLI Broker/Dealer Regulation and Enforcement Conference

  • “Catching Up on the Implementation of the Amended Federal Rules” Panelist at the 2016 Ingenious Northeast eDiscovery & IG Retreat

  • “Cybersecurity and Regulation: How to Prepare, Protect and Manage” Panel Moderator at the GAIM Regulation and Fund Governance Conference

  • “The Expansion of Consumer Financial Protection Bureau Regulation of the Auto Industry” Panelist at the 2014 Los Angeles Auto Show KPMG Legal & Compliance Forum

  • “Update on Global Banking Outsourcing Trends: Impacts of Upcoming International Organization Of Securities Commissions (IOSCO) Regulation for Index Providers” Presenter at an Evaluserve Global Knowledge Partner CLE event

  • “Recent Developments in Document Retention: Legal, Ethical & Practical Advice in the Context of Criminal, Regulatory & Civil Litigation” Presenter at a New York City Bar CLE event

  • “Data Sciences in Discovery Practice” Panelist at a New York Law Journal In-House Counsel CLE Seminar

  • “The Space Between: On the Crossroads of Technology, Information Governance & eDiscovery” Panelist at the 17th Annual Thomson Reuters eDiscovery and Information Governance in Practice Forum

  • “Beyond Savings: How Predictive Coding Will Transform Your Litigation Practice” Panelist at a New York Law Journal eDiscovery webinar

  • “Building Effective Cross-Functional Teams to Manage Large Scale Securities Suits” Panelist at IQPC's 7th Securities Litigation & Enforcement Summit

  • “Want To Be My Friend? Social Networking's Impact on Discovery” Panelist at a Kroll Ontrack CLE event

  • “Best Practices for Complex E-Discovery Matters” Panelist at a Lexis Nexis, Applied Discovery CLE event

  • “Next Decade of Document Review: Cheaper, Better, Smarter” Panelist at a Kroll Ontrack Thought Leadership CLE event

  • “Electronic Discovery in Practice” Panelist at a Legal Aid Society CLE event

  • “Lawyering in the Public Interest – Large Law Firm Practice.” Panelist at the Third Annual University of Kentucky College of Law Lassiter Distinguished Visiting Professor Conference

  • “Pro Bono and Your Career,” Panelist at a Martindale-Hubbell Connected and Pro Bono Net webinar

  • “Advancing at Your Firm - Career Management Tips for Junior Associates.”  Panelist at a New York City Bar presentation.


Mr. Isajiw has authored or been quoted in several publications, including:

  • “2017 Financial Industry Regulatory Priorities: OCIE and FINRA Announce Examination Areas of Focus” King & Spalding Client Alert, January 2017

  • “Are Investment Managers Indemnified for Inter-Party Disputes?” Bloomberg BNA Securities Regulation & Law Report, January 2017

  • “The SEC’s New Suitability Theory: Takeaways From UBS” Law360, November 10, 2016

  • “Lessons On SEC's Customer, Whistleblower Protection Efforts” Law360, July 15, 2016

  • “The SEC’s Customer Protection Rule Initiative and Whistleblower Protection Efforts – What Broker-Dealers Need To Know” King & Spalding Client Alert, July 12, 2016

  • “The New Normal: In Re Trulia Forecasts An Adversarial Future For Disclosure-Only Settlements And 'Deal Tax' Litigation", February 2016

  • Quoted in: “Class Actions Plunge Under Delaware Scrutiny”, Financial Times Agenda, January 19, 2016

  • “FINRA’s 2016 Focus: Proactive Compliance in Innovative Markets” King & Spalding Client Alert, January 11, 2016

  • “Ceresney's Cues On Future Of Market Structure Enforcement” Law360, November 4, 2015

  • “Our Modern Markets: SEC Enforcement Focuses On Market Structure In Response To Rapidly-Changing Equity Markets” King & Spalding Client Alert, November 3, 2015

  • “Death To The Deal Tax Or Time To Move The Party? Analyzing The Value Of Forum Shopping Disclosure-Only Merger Litigation” October 29, 2015

  • “Does Use of Self-Destructing Messages Raise Spoliation Concerns?”  New York Law Journal April 13, 2015

  • “Directors Ignore Cybersecurity Risks at Their Peril.” February 2015 

  • “Financial Institution Cybersecurity Scorecard: A SEC Risk Alert Highlights The Results Of Its Cybersecurity Examination Sweep.” February 12, 2015

  • “Are You Prepared For A Cyber-Attack? The Treasury Department Provides 10 Questions To Guide Corporate Leaders Through A Cybersecurity Assessment”, December 22, 2014

  • “Cybersecurity Risks Reviewed: Directors and Officers Must Be Proactive and Prepared” BNA Corporate Law & Accountability Report, July 25, 2014

  • “Halliburton Decided: The Supreme Court Continues An Evolutionary, Not Revolutionary, Trend Limiting Potentially Frivolous Securities Class Action Lawsuits”, June 25, 2014

  • “What Rakoff Reversal Means For ‘Neither Admit Nor Deny” Law360, June 5, 2014

  • “Secondary Actors in Securities Transactions Beware: The Supreme Court May Have Aided and Abetted the Prospect of Increased State Court Litigation”, April 18, 2014

  • “U.S. District Court Confirms FTC Authority to Regulate Corporate Data Security Practices,” April 11, 2014 

  • “What Role Should the SEC Play in Regulating Cybersecurity?”, March 28, 2014

  • “Issues With Self-Destructing Messages In the Workplace” New York Law Journal Special Section on Labor & Employment: Social Media in Focus, March 10, 2014

  •, on-going contributor.

  • Business and Commercial Litigation in Federal Courts, 3rd Edition, contributing author to the chapter on internal investigations

  • Public Companies, contributing author to several editions of the treatise that provides a comprehensive treatment of the responsibilities and functions of publicly traded corporations and their directors, officers and general counsel

  • “Workplace Email Privacy Concerns: Balancing the Personal Dignity of Employees with the Proprietary Interests of Employers" Temple Environmental Law and Technology Journal, Fall 2001


  • New York County Lawyers Association (NYCLA), Co-Chair of the Compliance and Regulatory Affairs Committee   


Law Clerk, Honorable Yvette Kane, U.S. District Court for the Middle District of Pennsylvania

J.D., Dean's List, Temple University Beasley School of Law
B.A. Sociology, honors program, Villanova University

New Jersey
New York
Supreme Court of the United States
U.S. Court of Appeals for the Fifth Circuit
U.S. Court of Appeals for the Second Circuit
U.S. District Court for the Eastern District of New York
U.S. District Court for the Southern District of New York