Why Alnylam Pharmaceuticals, Inc. (ALNY) stock fell 18.2% on Thursday, October 29, 2026

Alnylam Pharmaceuticals, Inc. (ALNY) traded at $190.1 as of 11:31 AM ET, down 18.20% on Thursday, October 29, 2026, on volume of 3,783,607 shares (2.2× its 3-month average); market value about $25.40B.

What happened: primary sources

Events Nexqual found for ALNY on Thursday, October 29, 2026 or the trading day before (October 28, 2026):

• Oct 29, 2026: Reported Q3 2026 results: adjusted EPS $16.26 vs consensus $2.25 (beat), revenue $1.46B vs consensus $1.43B (beat). Guidance: The company remains on track to achieve its 2026 financial guidance. source

These are listed as context. A filing or rating change on the same day is not proof that it caused the move; read the source.

More on ALNY

ALNY stock page: price, SEC financials, insider trades, superinvestor holders, analyst estimates and options. Other big moves that day: October 29, 2026.

Sources: SEC EDGAR, Nexqual Earnings Flash, analyst rating changes, Nexqual market data. Built October 29, 2026 at 16:12 UTC. Not investment advice.

Data source: Nexqual. Last updated: October 29, 2026 at 16:12 UTC. This page is informational and not investment advice.

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