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Investigation launched into Sellas Life Sciences over delayed trial results and stock drop

Market News
17 Sep 2026
PRNewsWire
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Bearish
Investigation launched into Sellas Life Sciences over delayed trial results and stock drop

Pomerantz LLP is investigating Sellas Life Sciences Group and some of its executives for potential securities fraud related to the delayed release of phase 3 clinical trial results for their drug Galinpepimut-S. The trial reached a key milestone of 80 patient deaths on August 28, 2026, which should have triggered the release of results, but Sellas did not disclose them promptly. Following the news report about the delay, Sellas's stock price fell 13.15% in one day. The investigation aims to determine if the company engaged in unlawful business practices, and investors affected are encouraged to contact Pomerantz LLP for possible class action participation.

Sellas Life Sciences Group's stock fell 13.15% in one day following news of delayed clinical trial results. For readers following health-sector stocks, here is Pluang's market snapshot as of Sep 17, 2026 21:11 WIB: out of 91 priced US health stocks, 59 rose and 31 fell. Notable movers include Illumina, Inc. (ILMN) at USD 241.64 with a 5.55% gain but 97% sell order activity, Ginkgo Bioworks Holdings Inc (DNA) at USD 7.44 up 5.38%, and Citius Pharmaceuticals Inc (CTXR) at USD 0.58 up 4.20% with 100% buy order activity and a typical hold time of 15 days on Pluang.

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