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Omeros Corporation Investigated by the Portnoy Law Firm
GlobeNewswire Inc.·
The Portnoy Law Firm has initiated an investigation into possible securities fraud at Omeros Corporation following the European Medicines Agency's negative opinion on the company's narsoplimab marketing authorization application on June 26, 2026. The negative regulatory decision triggered a 19.12% stock price decline, dropping from $10.72 to $8.67 per share. The firm is seeking to file a class action lawsuit on behalf of affected investors.
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