Filana Therapeutics wins appeal, class certification vacated in securities suit
The Fifth Circuit Court of Appeals vacated the Texas District Court's order granting class certification in the securities class action against Filana Therapeutics and certain officers and employees. The case returns to the Texas District Court for further class certification proceedings, and the appeals court made no finding on whether the company's securities traded in an efficient market.
Key points
- On October 16, 2026, the Fifth Circuit vacated the class certification order.
- The class covered purchasers or acquirers of the company's securities between September 14, 2020 and October 12, 2023.
- The Fifth Circuit found the district court misapplied the legal standard and did not properly evaluate evidence of market inefficiency.
- Further class certification proceedings will take place on remand in the Western District of Texas.
The filing
Written by AI on Nov 9, 2026, 8:29 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on October 20, 2026.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.