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Nutter McClennen & Fish LLP
Attorneys at Law

Jonathan R. Allen

Seaport West, 155 Seaport Boulevard, Boston, MA 02210
T: 617.439.2328
F: 617.310.9328

Jonathan R. Allen is an associate in the Litigation Department. He focuses his practice on complex civil litigation, SEC and White Collar defense, and securities litigation. Jonathan has helped secure successful results for clients in the areas of securities law, contract law, breach of fiduciary duty, class-action proceedings, complex accounting issues, statutory interpretation, and constitutional law.

Representative Matters

Jonathan has experience representing clients in enforcement proceedings before the SEC and in a variety of litigation matters before federal and state courts, administrative agencies, and arbitration panels. Jonathan’s successes include: 

  • Representing a company and its subsidiary in the companies’ ongoing dispute with their former president and CEO, alleging breaches of fiduciary duty and over $3 million in misappropriations; 
  • representing one family member in six pending litigations in superior court and probate court concerning rights to a multi-million dollar estate; 
  • securing a settlement, in the middle of discovery, of nearly the entire complaint amount on behalf of the former owners and shareholders of a privately-held company who had sold the company to a purchaser that subsequently refused to pay the contingent consideration in the deal; 
  • assisting with various stages of contested divorce and annulment cases; 
  • representing a senior hedge fund portfolio manager in an SEC investigation relating to possible trading improprieties and convincing the SEC to close its investigation with no charges; 
  • representing a privately-held Massachusetts company in an ongoing SEC investigation involving the company’s private offering and sale of securities; 
  • assisting a regional bank to retrieve its customer data from a vendor that threatened to withhold the data on the eve of the bank’s online banking conversion; 
  • securing a favorable settlement for a regional credit union in a dispute with its regulator; 
  • securing a favorable settlement for a regional bank in a shareholder class action challenging the bank’s merger with another regional bank, settling for disclosures only and minimal attorneys fees; 
  • assisting with the dismissal of all claims in AAA arbitration proceeding involving a contract for the provision of a pharmaceutical delivery system; 
  • assisting with the representation of a coalition of insurance companies before the SEC and then the D.C. Circuit Court of Appeals, which resulted in vacatur of an SEC rule regulating certain annuity products; 
  • assisting with the representation in federal court of a major accounting firm in defense of class-action securities-fraud claims involving accounting for derivative instruments; and 
  • assisting with the representation in federal court of a major retailer in defense of class-action gender-discrimination claims.

Pro Bono Matters

Jonathan also devotes significant time to pro bono matters. While practicing in Washington, D.C., Jonathan won an Immigration Court trial, reversing a federal agency’s ruling and earning asylum for a young man that had been persecuted in his home country based on his sexual orientation. He also helped persuade the Sixth Circuit Court of Appeals to grant a habeas petition and remand the case to the district court for a renewed hearing on the issue of discriminatory jury selection.

Since moving to Massachusetts, among other pro bono matters, Jonathan successfully represented a domestic violence victim in her efforts to keep her medical information confidential in the criminal trial of her accused abuser. In addition, he helped a homeless parent in her dispute with a local school board over the placement of her children, convincing the department of education to instruct the school board to allow the children to stay in school. Jonathan also represented a local author in his dispute with an online-publishing agency, and convinced the publishing agency to refund nearly the entire amount the author had paid for a publishing campaign that he felt was not delivered as promised. Most recently, Jonathan represented the widow of a World War II veteran and successfully argued for remand of the Veterans Administration’s denial of her claim for benefits.


Before joining Nutter, Jonathan was an associate in the Washington, D.C., office of Gibson, Dunn & Crutcher LLP. He earned his law degree, magna cum laude, from the Georgetown University Law Center, where he was a member of the Order of the Coif and a Senior Editor for The Georgetown Law Journal.

While in law school, Jonathan simultaneously earned a Master of Public Policy from the Georgetown Public Policy Institute. As part of his Master’s degree, Jonathan took business courses in management and leadership at Trinity College in Oxford University. Prior to graduate school, Jonathan earned his undergraduate degree in Journalism and Communication from the University of Oregon.

Before law school, Jonathan was an elementary and middle-school teacher.