Why Haleon plc (HLN) stock fell 15.6% on Thursday, October 29, 2026

Haleon plc (HLN) traded at $8.45 as of 11:31 AM ET, down 15.55% on Thursday, October 29, 2026, on volume of 27,394,342 shares (1.8× its 3-month average); market value about $37.10B.

What happened: primary sources

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

• Oct 29, 2026: SEC 6-K: Current report (foreign issuer), period ended Oct 29, 2026 source
• Oct 29, 2026: SEC 6-K: Current report (foreign issuer), period ended Oct 29, 2026 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 HLN

HLN 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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