Ambac Financial Group, Inc. ("Ambac" or the Company) is an American holding company. Its subsidiaries provide financial guarantee products such as bond insurance to clients in both the public and private sectors globally.

According to the law firm press release, the Complaint alleges that throughout the Class Period, Ambac made materially false and misleading statements and omitted material facts concerning the Company’s losses and loss exposure on its public finance bond portfolio, risk management, and internal controls. The Complaint further alleges that these misstatements allowed the stock to trade at artificially inflated prices throughout the Class Period.

Following the June 29, 2015 revelation that Puerto Rico would likely default on upcoming interest payments, and that as a result, Ambac was potentially liable for up to $2.5 billion worth of Commonwealth debt the Company insured, Ambac stock fell approximately 29%, causing investors substantial losses. Then on May 11, 2016, Ambac admitted in an SEC filing that management “had identified a material weakness in its internal control over financial reporting.”

On October 11, 2016, the Court issued an Order appointing Lead Plaintiff and Counsel. Lead Plaintiff filed an amended Complaint on November 23.

On September 5, 2017, the Court issued an Order granting Defendants' Motion to Dismiss.