JEF INVESTIGATION: Investigation Launched into Jefferies Financial Group Inc., Attorneys Encourage Investors and Potential Witnesses to Contact Law Firm

SAN DIEGO, June 4, 2026 /PRNewswire/ -- Robbins Geller Rudman & Dowd LLP is investigating potential violations of U.S. federal securities laws involving Jefferies Financial Group Inc. (NYSE: JEF) focused on whether Jefferies as well as certain of its executives made false and/or misleading statements and/or failed to disclose material information to investors. If you have information that could assist in the Jefferies investigation or if you are a Jefferies investor who suffered a loss and would like to learn more, you can provide your information here: https://www.rgrdlaw.com/cases-jefferies-financial-group-inc-investigation-jef.html You can also contact attorneys Ken Dolitsky or Michael Albert of Robbins Geller by calling 800/851-7783 or via e-mail at info@rgrdlaw.com.