David Ko


1201 Third Avenue, Suite 3200
Seattle, Washington 98101 

P: 206.623.1900
F: 206.623.3384



David is a partner in the firm’s nationally recognized Complex Litigation Group, where he primarily represents government entities, retirement plans, and institutional investors in federal and state courts across the country. He has helped his clients obtain several multimillion dollar recoveries against some of the largest corporations in the country in cases involving breaches of fiduciary duty under ERISA, consumer protection violations, securities misrepresentations, and general corporate malfeasance.

David has significant trial experience in both federal and state court. He was a lead trial attorney in a three-and-a-half month bench trial in the Northern District of Illinois involving breach of fiduciary duty claims on behalf of a private employee stock ownership plan that resulted in a settlement after judgment and prior to resolution of an appeal. He was also part of the trial team representing three Federal Home Loan Banks that successfully objected to a proposed $8.5 billion settlement submitted by the Bank of America in New York Supreme Court arising out of its purchase of mortgage-backed securities from Countrywide.

David also represented thousands of Super Bowl 49 ticket holders who purchased but did not receive their tickets as promised from various ticket brokers engaged in short-selling, including filing the first class action arising out of this widespread and deceptive practice.

Most recently, David has been appointed as a special deputy prosecuting attorney by numerous government entities as outside counsel in litigation against manufacturers and distributors of prescription opioids. David is one of the lead attorneys handling the firm’s opioid cases, and represents counties, cities, and Native American Tribes in Washington, California, Arizona, Colorado, and Idaho in the national opioid litigation pending in the Northern District of Ohio.

Prior to joining the firm, David clerked for the Honorable Ricardo S. Martinez, Chief U.S. District Judge in the Western District of Washington. David is also past President of the Korean American Bar Association of Washington, and a Fellow of the Washington Leadership Institute.

Bar and Court Admissions

2006, Washington
2010, U.S. District Court for the Western District of Washington
2010, U.S. District Court for North Dakota
2011, U.S. Court of Appeals for the Ninth Circuit
2016, U.S. District Court for the Eastern District of Michigan
2018, U.S. Court of Appeals for the Second Circuit
2018, U.S. District Court for the Eastern District of Washington
2019, U.S. District Court for Colorado


University of Washington – B.A., 2002, History and Political Science 

Seattle University School of Law – J.D., cum laude, 2006; National Order of the Barristers 

University of Washington School of Law – LL.M., 2007, Taxation

Professional and Civic Involvement

Washington State Bar Association, Member

King County Bar Association, Member

Korean American Bar Association, Board Member

Asian American Bar Association, Member

National Center for Employee Ownership, Member

Articles and Presentations

Speaker, Washington State Society of Healthcare Attorneys Annual Conference, Opioid Litigation on Behalf of Local Governments (Seattle, WA, 2018)

Speaker, Mass Torts Made Perfect, National Costs of Opioid Crisis (Las Vegas, NV, 2018)

Speaker, National Center for Employee Ownership Annual Conference, Fundamentals of the Repurchase Obligation (Denver, CO, 2017)

Speaker, National Business Institute, Legal Ethics: Top Attorney-Client Mistakes (Seattle, WA, 2016)

Speaker, National Business Institute, Title Law: Ethics (Seattle, WA, 2016)

Honors & Awards

Named to Washington Rising Stars List, 2019.

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