Joshua is the Managing Partner of the Firm, taking an active role in the analysis and strategy of Weiss Law’s varied cases.  He received a Bachelor of Talmudic Law from Ner Israel Rabbinical College in 2002 and his J.D. from Benjamin N. Cardozo School of Law in 2005. Mr. Rubin is admitted to the New York and New Jersey State Bars, and the United States District Courts for the Southern and Eastern Districts of New York, the District of Colorado, and the United States Courts of Appeal for the Second and Tenth Circuits.

Mr. Rubin represents a broad spectrum of domestic and foreign clients in complex class actions including securities class actions and shareholder derivative actions in federal and state courts.

Mr. Rubin has played an important role in the recovery of millions of dollars for damaged investors, and derivatively on behalf of publicly traded companies.  These actions include the successful class prosecution on behalf of investors of Converium Holding AG (Sclater-Booth v. SCOR, S.A., 07 cv 3476 (GEL)) in the Southern District of New York and Keyspan Corp. (In re Keyspan Corporation Securities Litigation, 01 cv 5852 (ARR)) in the Eastern District of New York.  He also participated in landmark litigation leading to the certification of a class of investors asserting securities fraud claims against research analysts, reported at DeMarco v. Robertson Stephenson, Inc., 228 F.R.D. 468 (S.D.N.Y. 2005) ($3.1 million recovery).  

Additionally, Mr. Rubin has had a significant role in successfully prosecuting derivative actions on behalf of Fortune 500 companies, including on behalf of Hewlett-Packard Company (In re Hewlett-Packard Company Derivative Litigation, C.A. No. 2428-VCN, Court of Chancery of the State of Delaware), Southwest Airlines Co. (Carbon County Employees Retirement System et al., v. Kelly, et al. f/b/o Southwest Airlines Co., No. 08-086292, District Court of Dallas County, Texas) and BP p.l.c. (In re BP p.l.c. Derivative Litigation, No. 06 cv 6168 (HB) (S.D.N.Y.)).

The Firm has also taken a lead in prosecuting market timing and secret revenue sharing cases.  A prime example is the class action against Edward Jones and certain other defendants, alleging violations of federal securities laws and state laws by secret receipt of revenue sharing payments in exchange for selling Preferred Funds to their clients, while misleading them about the payments.  (Spahn v. Edward D. Jones & Co., et al., No. 04 cv 00086, District of Missouri).  As a result of the litigation, a recovery valued at $127.5 million was obtained for the class, more than 40% of the maximum recoverable damages.

Mr. Rubin has also litigated shareholder actions in connection with mergers and acquisitions and successfully represented shareholders in a recent action seeking to enforce the application of U.S. tender offer rules to a foreign corporation.

Mr. Rubin oversees the Firm’s various systems used to monitor the stock portfolios of its institutional clients, as well as the maintenance of the firm’s document retrieval database and Electronic Discovery platforms.

Mr. Rubin also devotes time to charity and pro bono work. He is a member of the Board of Directors of the Clifton Passaic Safety Patrol Inc., a non-profit citizen's safety patrol organization, Give Chesed Corp., a volunteer led organization devoted to the empowerment of young women, and the Passaic Clifton Passover Fund, Inc., which provides food assistance to needy families. He also volunteers as an active member of the Passaic Clifton Jewish Burial Society. Mr. Rubin also enjoys road cycling, completing his first Century Ride in the summer of 2021 in support of Chai Lifeline, an organization dedicated to helping families with children battling cancer and other serious illnesses.

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