Callisto Research & Sportradar
3 shared events · Importance 3 · Last updated Jul 15, 2026
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Callisto Research is an activist short seller that targeted Sportradar with a critical investigative report in April 2026, alleging the company aids illegal gambling.
Business
Callisto Research: Callisto Research published a report corroborating allegations against Sportradar, claiming the company has ties to illegal gambling and sanctioned parties, further contributing to the stock decline and legal actions.
Sportradar: Sportradar is the primary target of the class action lawsuits and investigations, accused of securities fraud due to alleged involvement in illegal gambling operations and misrepresenting its compliance protocols. Its stock price fell 22.6% following the short-seller reports.
Apr 23, 2026 · 383 articles
Regulatory
Callisto Research: Callisto Research published a report on April 22, 2026, alleging that over 270 platforms using Sportradar's services operate illegally, contributing to the stock collapse.
Sportradar: Sportradar is the defendant in the securities class action, facing allegations of misleading investors about its compliance and revenue sources. The stock price collapsed 22.6% on April 22, 2026, and the company faces significant legal and reputational damage.
May 21, 2026 · 278 articles
Regulatory
Callisto Research: Callisto Research published a report corroborating allegations of Sportradar's ties to unlicensed operators.
Sportradar: Sportradar is the defendant in the securities class action, accused of concealing its ties to illegal gambling operators. The company's stock price collapsed 22% and its market cap fell by over $800 million.
Jul 05, 2026 · 46 articles
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