
In our recent round-up of the top D&O stories so far this year, one of the top developments in 2026 we noted is the growing amount of AI-related D&O litigation. The AI-related litigation trend has continued to develop, as new AI-related lawsuits continue to be filed. In recent days, plaintiffs’ lawyers have filed two further AI-related securities class action lawsuits, first, against the Chinese Internet company Baidu, and, separately, against the AI-powered Internet advertising firm AppLovin. Both new lawsuits are based on AI-washing type allegations. The new lawsuit against Baidu also reflects the surging levels of securities litigation this year involving Chinese companies, as discussed further below.
The Baidu Lawsuit
Baidu maintains the most popular Internet search engine in China. In the past, the company has realized most of its revenue from online marketing services. In 2025, the company online marketing services revenue began to decline. However, the recently filed complaint alleges, the company assured investors that “its new core AI-Powered Business growth had, and would continue to, meaningfully mitigate Baidu’s Online Marketing Services decline.”
In February 2026, when the company reported its fourth quarter and full-year 2025 financial results, the company reporting overall declining revenue, but also reported that “AI-Powered Business” grew 48% year-over-year in its fiscal 2025.
In August 2026, when the company reported its 2Q26 financial results, the company again reported overall declining revenues, including declines in Online Marketing services revenue. “Critically,” the complaint alleges, “the Baidu Core AI-Powered Business fell 8% quarter over quarter,” and its largest AI business component, AI Cloud Infra, fell 17% quarter over quarter. The complaint alleges that the company’s share price declined nearly 13% on this news.
On September 14, 2026, a plaintiff shareholder filed a securities class action lawsuit in the Southern District of New York against Baidu and certain of its directors and officers. The complaint purports to be filed on behalf of investors who purchased the company’s securities, between November 18, 2025, and August 17, 2026. A copy of the new lawsuit against Baidu can be found here.
The complaint alleges that the defendants failed to disclose to investors “(1) that the Company had overstated the ability of its AI business to mitigate rapid declines in its legacy online marketing business; (2) that, as a result, the Company’s revenue was reasonably likely to decline; and (3) that, as a result of the foregoing, Defendants’ positive statements about the Company’s business, operations, and prospects were materially misleading and/or lacked a reasonable basis.”
The complaint alleges that the defendants violated Section 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 thereunder. The complaint seeks to recover damages on behalf of the class.
The AppLovin Lawsuit
AppLovin provides artificial intelligence-powered advertising solutions. The tools the company provides its customers use AI models to more efficiently match an advertisement to a prospective consumer.
The complaint alleges that during the class period the defendants touted the purported strength of AppLovin’s AI models as a major driver of the Company’s growth, telling investors that AppLovin was “constantly improving” its models. The company, the complaint alleges, described its business approach as promoting a “virtuous cycle” of improvement and revenue, in which better models yielded greater returns for the Company’s advertiser customers, thus incentivizing them to increase their spending on AppLovin’s services, and encouraging new customers to begin using AppLovin’s services. The company’s strategy included, in particular, the development and roll out of a generative AI video creative feature.
On July 13, 2026, a securities analyst’s report noted softer than expected e-commerce ad growth amid concerns about AppLoving Ads rollout, the footprint for which expanded at a lower-than-expected pace. The price of the company’s shares fell 12.7% on this news.
Then on August 5, 2026, the company announced its financial results for the quarter ending June 30, 2026. The company reported quarterly revenues below consensus analyst estimates. Among other things the company noted that its generative AI video tool was “still a work in process.” The company’s share price declined a further 19%.
On September 16, 2026, a plaintiff shareholder filed a securities class action lawsuit in the Northern District of California against AppLovin and certain of its directors and officers. The complaint purports to be filed on behalf of a class of investors that purchased the company’s securities between February 12, 2026, and August 5, 2026. A copy of the new complaint filed against AppLovin can be found here.
The complaint alleges that during the class period, the defendants misrepresented or failed to disclose that: “(i) the generative AI video creative feature for the Company’s AppLovin Ads platform was subject to significant development delays, making its release on the Company’s timeline unlikely; (ii) Defendants overstated the constancy with which AppLovin was improving its AI models; (iii) for these reasons, among others, AppLovin had significantly overstated the benefits and reliability of the purportedly ‘virtuous cycle’ and ‘compounding’ value proposition that its AI models provided to customers and to the Company; and (iv) as a result, Defendants’ public statements were materially false and misleading at all relevant times.”
The complaint alleges that the defendants violated Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 thereunder. The complaint seeks damages on behalf of the plaintiff class.
Discussion
The allegations against the defendant companies are of course company specific, but the allegations also reflect typical AI-washing allegations, in which the securities lawsuit plaintiff alleges that the defendant company overstated its AI-related business prospects or opportunities.
The new lawsuits have only just been filed, and it remains to be seen how they will fare. A neutral observer might well note that it may yet turn out that Baidu’s AI business could in fact offset the declines in its legacy business, and AppLoving’s rollout of its new AI-powered tools could yet prove to be successful.
The new lawsuits do, as noted at the outset, represent examples of an important current D&O litigation trend, which is the growing numbers of AI-related lawsuit filings. By our tally, these new lawsuits bring the 2026 count of AI-related lawsuit filings to 24, representing nearly 14% of all new securities class action lawsuit filings this year. The 24 YTD AI-related lawsuit filing total compares with the 16 AI-related lawsuits filed during the full year of 2025. Clearly, by year-end, AI-related lawsuits will represent a significant component of overall securities suit filings this year.
It is also noteworthy that the new Baidu lawsuit involves a Chinese company. There has been a rash of securities suit filings against Chinese companies in 2026. According to our tally, this new lawsuit against Baidu is the 13th lawsuit filed this year against companies based in China or in Hong Kong.
One thing driving the number of new filings against Chinese and Hong Kong companies this year is the number of new lawsuits filed against companies based in China and Hong Kong involving pump-and-dump or other market manipulation-based lawsuits. There have been a total of six lawsuits this year filed against companies based on China or Hong Kong based on market manipulation allegations. However, as the new Baidu lawsuit shows, not all of suit filings against companies based in China and Hong Kong are based on market manipulation allegations.
The 13 lawsuits filed this year against companies based on China and Hong Kong represent nearly 8% of all U.S. securities lawsuit filings this year and nearly 40% of all securities suits filed this year involving non-U.S. company defendants. So, not only are AI-related lawsuits driving the overall numbers of securities suit filings in 2026, but another significant factor contributing to the overall volume of securities litigation is the number of companies that have been filed this year against companies based in China and Hong Kong.































