Maeve O’Connor

Debevoise & Plimpton LLP 

Maeve O’Connor is Co-Chair of the Firm’s Securities Litigation Practice and Chair of the Firm’s Insurance Litigation Practice, and spent six years as a member of the firm’s Management Committee. She has significant experience in defending securities litigation and in representing life insurance companies in a range of litigation and regulatory matters.

She is recognized as a leading lawyer by Chambers USA (2018) and The Legal 500 US (2018), where she is described as a “whip-smart, ferocious and superbly skilled litigator” and as an “outstanding writer and advocate.” She is also recognized as a “Litigation Star” and as one of the “Top 250 Women in Litigation” in the IFLR Benchmark Litigation Guide (2018).

Prior to joining Debevoise, Ms. O’Connor served as a Law Clerk to the Hon. H. Lee Sarokin, U.S. Court of Appeals for the Third Circuit. Ms. O’Connor received her J.D. from Yale Law School, where she was a senior editor of the Yale Law Journal. She obtained her B.A. magna cum laude from Harvard University, where she was elected to Phi Beta Kappa.


  • MetLife, Inc. in multiple securities class action and derivative lawsuits challenging the company’s estimates of liabilities for incurred but not reported claims.
  • The Special Committee and independent members of the Board of Directors of Dell in defeating requests for a preliminary injunction and obtaining dismissal of 26 stockholder class actions challenging $25 billion going-private transaction.
  • The Federal Reserve Bank of New York in obtaining dismissal of claims for over $40 billion against the Bank by the largest shareholder of AIG challenging the terms of a rescue loan the Bank provided to AIG during the 2008 financial crisis.
  • Prudential Financial and certain present and former officers and directors in securities class action and derivative lawsuits arising from the company’s practices with regard to unclaimed life insurance benefits.
  • Directors and officers of Cablevision in a derivative lawsuit related to executive and board compensation.
  • J.C. Flowers in the dismissal of all claims arising from collapse of MF Global.
  • JPMorgan Chase & Co. and certain of its affiliates in dismissal of a class action lawsuit challenging provision of private mortgage reinsurance under RESPA
    The former Chief Financial Officer of Hertz in a securities class action lawsuit challenging Hertz’s accounting arising from restatement of financial results.
  • Providence Equity Partners in winning summary judgment in a shareholder class action lawsuit arising from Providence’s $1.9 billion acquisition of SRA International.
  • The Special Committee of Martha Stewart Living Omnimedia in multiple stockholder class actions challenging proposed sale of company to Sequential Brands.
  • The Board of Directors of StanCorp Financial Group Inc. in multiple stockholder class actions challenging proposed acquisition of StanCorp by Meiji Yasuda Life Insurance Company.
  • Protective Life Insurance Company in multiple stockholder class actions challenging proposed acquisition of Protective by Dai-ichi Life Insurance Company.
  • The Board of Directors of Capital One Financial Corp. in obtaining dismissal with prejudice of a shareholder derivative action alleging that the board members breached their duty of loyalty by consciously disregarding their responsibility to oversee the company’s compliance with various anti-money laundering laws.


  • Yale Law School, 1995, J.D.
  • Harvard University, 1990, B.A.

Bar Admissions:

  • New York


Rate : $$$

What types of cases Attorney Maeve O'Connor & Debevoise & Plimpton LLP  can handle?
Debevoise & Plimpton LLP  can handle cases related to laws concerning Financial Services, Litigation, Insurance, Consumer Rights & Protection, Mergers & Acquisitions. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Debevoise & Plimpton LLP  located?
Debevoise & Plimpton LLP  is located at 919 Third Avenue, New York, NY 10022, USA. You can reach out to Debevoise & Plimpton LLP  using their phone line 212 909 6315. You can also check their website or email them at [email protected].
How much would it cost to hire Debevoise & Plimpton LLP ?
Maeve O'Connor lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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Debevoise & Plimpton LLP 
919 Third Avenue, New York, NY 10022, USA
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