Event Driven Litigation

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Evan Bundschuh
Burkhard Fassbach

In the following guest post, Evan Bundschuh and Burkhard Fassbach share and analyze their research into the AI-related Form 10-K disclosures of 26 U.S.-listed public companies, in order to assess the level and significance of public companies’ disclosure statements pertaining to artificial intelligence. Evan is Vice President at GB&A, a retail insurance brokerage in New York, and Burkhard is a D&O lawyer in private practice in Germany. My thanks to Evan and Burkhard for allowing us to publish their article on this site. Here is their article.

Continue Reading Guest Post: Mapping AI Risks: Insights from 2025 10-K Filings

It is no secret that SEC Chair Paul Atkins has ideas about how U.S. securities laws could be reformed to “revitalize” America’s capital markets. Among other things, late last year Atkins proposed a number of revisions to the current U.S. public company disclosure regime. Now, in a speech earlier this week, Atkins floated several additional proposed reforms, among other things referring to the possibility of loser-pays bylaws for shareholder suits and of a “safe harbor” for public company disclosures concerning widely publicized events. As discussed below, Atkins’s recent ideas have a long and relevant history. The text of Atkins’s February 17, 2026, speech can be found here.

Continue Reading SEC Chair Atkins Proposed Further Securities Litigation and Disclosure Reform

As part of our beat here at The D&O Diary, we read all of the new securities class action lawsuit complaints as they come in. As a result, we have become quite accustomed to the reality that, as Bloomberg columnist Matt Levine famously put it, “everything, everywhere is securities fraud.” But our experience did not quite prepare us for the new complaint filed earlier this week against UnitedHealth Group that works the CEO’s murder into the complaint’s allegations. A copy of the May 7, 2025, complaint filed against UnitedHealth can be found here.

Continue Reading Event-Driven Litigation, Sure, But Even Where the Event is the CEO’s Murder?

The July 19, 2024 CrowdStrike Outage, which has been called the “largest outage in the history of information technology,” disrupted airlines, hospital, hotels, banks, retail businesses, and many other critical cogs in the wheels of commerce. The disruption and adverse publicity surrounding the incident also caused CrowdStrike’s share price to decline as well – over the course of several days following the incident, its shares declined about 30%, representing a market capitalization drop of nearly $12.5 billion. In a world where “everything, everywhere is securities fraud,” this surely seemed like a situation that would produce a securities class action lawsuit. Yet, surprisingly, no securities suit was filed. That is, until now.  

Continue Reading CrowdStrike Hit with Outage-Related Securities Suit

There was a time, not that long ago, when class action securities lawsuits were mostly about accounting and financial disclosure-related issues. In more recent years, securities suits increasingly are about operational issues, in which unfortunate business developments are the basis of securities fraud allegations — a phenomenon that has been called “event-driven litigation.” In the latest example of this kind of litigation, a plaintiff shareholder has filed a securities class action lawsuit against General Motors alleging that the company, which sustained a product recall related to its vehicle airbags and suffered a significant setback in its driverless vehicle development efforts when one of its driverless vehicles struck a pedestrian, misled investors about vehicle safety issues. A copy of the plaintiff’s December 8, 2023, complaint can be found here.

Continue Reading Vehicle Safety Issues Trigger Securities Suit Against GM

Many of you may have read the recent series of Wall Street Journal articles raising the alarm about the sprawling U.S. network of lead telephone cables. The articles suggest not only that the lead cables represent a health hazard to workers and to nearby residents, but that the telephone companies (including AT&T) allegedly have known about these hazards but have failed to take corrective measures. The revelations in the Journal series have led to governmental investigations. And now a plaintiff shareholder has filed a securities class action lawsuit against AT&T alleging that the company misled investors about the allegedly known but undisclosed risks the companies faced as a result of the lead telephone cable hazards. This new event-driven lawsuit shows that dangers that unacknowledged environmental and health hazards may represent for reporting companies. A copy of the July 27, 2023, complaint can be found here.

Continue Reading Lead Telecom Cables Exposé Leads to Securities Suit Filing

Long-time readers know that I have frequently commented on this site on the phenomenon of “event-driven” litigation (for example, here). These are securities lawsuits filed in the wake of a significant operational event or development that disrupts a company and tanks its share price, as opposed to securities suits that are premised on accounting or financial misrepresentations. I am far from the only observer that has commented on this phenomenon. Among others, the Bloomberg columnist Matt Levine, in an article provocatively entitled, “Everything Everywhere is Securities Fraud” (here) also weighed in on the event-driven litigation trend.

There are, of course, usually two sides to every story, and in a April 5, 2023 Law360 article entitled “Why Event-Driven Securities Class Actions Often Succeed” (here, subscription required), Daniel Barenbaum and Michael Dark of the Berman Tabacco firm provide a plaintiffs’ side view of event-driven securities litigation, and make out their case that these cases are not only not frivolous but provide securities investors important remedies and protections.

Continue Reading Are Event-Driven Cases More Often “Frivolous” or “Successful”?

For several years now, one of the perennial questions in the corporate and securities arena has been the extent to which cybersecurity-related issues will contribute to D&O claims. There has never really been the volume of securities and derivative lawsuits that some observers expected, but there has been a small scattering of occasional suits filed from time to time. Now, in what is the latest cybersecurity-related D&O suit, a plaintiff shareholder has filed securities class action lawsuit against pay-TV services provider, Dish Networks, related to a network service disruption at the company caused by a cyber-security incident. A copy of the March 23, 2023, complaint can be found here.

Continue Reading Dish Networks Hit with Cybersecurity-Related Securities Suit

       

The securities class action lawsuits filed last week against failing or troubled banks felt as if the plaintiffs’ attorneys filing the suits were typing their complaints directly from the text of the day’s newspapers. Another suit filed last week referred to a slightly earlier but even more dramatic news story, the tragic train derailment in East Palestine, Ohio, of a Norfolk Southern freight train. The events surrounding the train disaster undoubtedly will be the subject of personal and environmental lawsuits for years to come. Now, the high-profile event is also the subject of a securities class action lawsuit, in the most recent example of the ways that operational events, rather than financial disclosures, increasingly can lead to securities litigation. A copy of the March 16, 2023, complaint can be found here.

Continue Reading Ripped from the Headlines: Norfolk Southern Hit with Securities Suit      

In what is the largest case dispositions of its type that I have ever seen, a court in Tokyo has ordered four executives of Tokyo Electric Power Holdings (Tepco) to pay the company 13.321 trillion yen – the equivalent of $97 billion — based on the court’s finding that the individuals had negligently failed to take steps that would have prevented the disaster at the Fukushima Daiichi nuclear plant after the March 2011 earthquake and tsunami. This verdict, which is described in a July 13, 2022 Wall Street Journal article (here), is noteworthy on many levels, as discussed below.
Continue Reading Massive $97 Billion Verdict Awarded Against Fukushima Utility Executives