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Law firm probes Omeros over stock drops after EMA rejects drug approval twice

Market News
20 Oct 2026
GlobeNewsWire
View Source
Bearish
Law firm probes Omeros over stock drops after EMA rejects drug approval twice

Pomerantz LLP is investigating Omeros Corporation for potential securities fraud following two significant stock price drops after the European Medicines Agency (EMA) twice rejected Omeros's drug narsoplimab for treating TA-TMA. The first rejection in June 2026 caused a nearly 20% stock fall, and a second negative opinion in October 2026 led to another nearly 14% drop. The investigation focuses on whether Omeros and its executives engaged in unlawful practices related to these announcements. Investors affected by these events are encouraged to contact the law firm for potential class action participation.

Omeros Corporation news is the subject, with Pluang market data providing context. For readers following health-sector stocks, 124 of 150 US stocks rose and 26 fell on October 21, 2026, at 03:11 WIB. Notable movers include LQDA at USD 36.53 (+7.03%, 81% Sell / 19% Buy), MRNA at USD 242.45 (+6.86%, 40% Sell / 60% Buy), and DFTX at USD 35.19 (+6.73%).

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