# Sunlands Technology Group > Sunlands Technology Group is a company currently facing a securities class action lawsuit, alleging violations of the Securities Act of 1933. The lawsuit, filed by Rosen Law Firm, relates to the company's March 2018 initial public stock offering (IPO) and affects investors who purchased securities between March 22, 2018 and June 27, 2019. The U.S. District Court has ruled that the case may proceed against the defendants. - URL: https://optimly.ai/brand/sunlands-technology-group - Logo: https://logo.clearbit.com/https://rosenlegal.com/cases/sunlands-technology-group - Slug: sunlands-technology-group - BAI Score: 36/100 - Archetype: Incumbent - Category: Education Technology - Last Analyzed: July 26, 2026 ## Buyer Intent Signals Problems: Do Not Join Class Action: For affected investors, choosing not to join the class action means forfeiting potential compensation and relying on individual action if any. | Individual Legal Counsel: An alternative for affected investors could be to pursue individual legal claims against Sunlands Technology Group, rather than joining the collective class action. Solutions: Sunlands Technology Group lawsuit | STG class action | Rosen Law Firm Sunlands