Erasca IncSecurities fraud investigation and class action lawsuit alleging misleading statements about ERAS-0015.
Hagens Berman is actively investigating claims in a securities class action against Erasca, Inc. The litigation alleges that Erasca and its senior executives misled investors about the competitive advantage, safety profile, and intellectual property surrounding its lead oncology candidate, ERAS-0015, during the class period from January 14, 2025 to April 26, 2026. The complaint claims the company used flawed preclinical comparisons to assert superiority over Revolution Medicines' RMC-6236, concealed patent infringement and trade secret misappropriation risks, and downplayed safety concerns that later included a patient death. On April 27–28, 2026, disclosures of a legal challenge from Revolution Medicines and adverse clinical data triggered a sharp stock decline that wiped out over $2.8 billion in market capitalization. Investors who purchased Erasca common stock during the class period have until August 10, 2026 to seek appointment as lead plaintiff.
Erasca IncSecurities fraud investigation and class action lawsuit alleging misleading statements about ERAS-0015.
Revolution Medicines IncRevolution Medicines' RMC-6236 is cited as the comparator; legal challenge against Erasca may benefit Revolution.