Xenon shares fell 30.69% to $39.75 after pairing an azetukalner epilepsy NDA with a voluntary pause of two Phase 3 psychiatry trials over psychosis signals.

Business· Sep 21, 2026

Facts from Wikidata (CC0). Image by User:Pslawinski via Wikimedia Commons (CC BY-SA 2.5).

xenon

chemical element with atomic number of 54 and heaviest stable noble gas

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xenon· Business · 5 sources · Sep 21, 2026Story

Xenon stock falls 30% but FDA story proves more complex

Xenon shares fell 30.69% to $39.75 after pairing an azetukalner epilepsy NDA with a voluntary pause of two Phase 3 psychiatry trials over psychosis signals.

Business· Sep 21, 2026

Facts from Wikidata (CC0). Image by User:Pslawinski via Wikimedia Commons (CC BY-SA 2.5).

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About xenon

Xenon is a chemical element; it has symbol Xe and atomic number 54. It is a dense, colorless, odorless noble gas found in Earth's atmosphere in trace amounts. Although generally unreactive, it can undergo a few chemical reactions such as the formation of xenon hexafluoroplatinate, the first noble gas compound to be synthesized.

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Not who you're looking for? Others named xenon: nightclub in New York City · last tyrant of the ancient Greek city of Hermione · pinball · Seleucid general officer (223–187 BC)

xenon across IJR

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XenonBig opinions, zero handlers.XenonThe late-night sketch version — live in your chat.

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