Halper Sadeh LLC, an investor rights law firm, said Aug. 24, 2026, that it is investigating four proposed transactions for potential violations of federal securities laws and breaches of fiduciary duties to shareholders. The matters involve Werewolf Therapeutics, Inc.'s merger with Ambros Therapeutics, Inc.; Beazer Homes USA, Inc.'s proposed sale to Dream Finders Homes, Inc. for $33.50 in cash per share; MarketAxess Holdings Inc.'s proposed sale to Intercontinental Exchange, Inc. for $167.00 per share in cash; and CBIZ, Inc.'s proposed sale to Grant Thornton Advisors LLC for $55.00 in cash per share. Upon completion of the Werewolf transaction, its shareholders are expected to own approximately 6.8% of the combined company. Halper Sadeh said insiders may receive financial benefits unavailable to ordinary shareholders and that the proposed transactions may include terms limiting superior competing offers. The firm may seek increased consideration, additional disclosures and information, or other relief on behalf of shareholders. It is offering consultations about shareholder rights and options at no cost or obligation and says matters would be handled on a contingent-fee basis, with clients not responsible for out-of-pocket legal fees or expenses.