Why ICON Public Limited Company (ICLR) stock rose 17.0% on Wednesday, October 28, 2026

ICON Public Limited Company (ICLR) closed at $214.16, up 17.04% on Wednesday, October 28, 2026, on volume of 3,943,370 shares (4.6× its 3-month average); market value about $16.50B.

What happened: primary sources

Events Nexqual found for ICLR on Wednesday, October 28, 2026 or the trading day before (October 27, 2026):

• Oct 27, 2026: SEC 6-K: Current report (foreign issuer), period ended Sep 30, 2026 source
• Oct 27, 2026: SEC 6-K: Current report (foreign issuer), period ended Oct 27, 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 ICLR

ICLR stock page: price, SEC financials, insider trades, superinvestor holders, analyst estimates and options. Other big moves that day: October 28, 2026.

Sources: SEC EDGAR, Nexqual Earnings Flash, analyst rating changes, Nexqual market data. Built October 28, 2026 at 22:04 UTC. Not investment advice.

Data source: Nexqual. Last updated: October 28, 2026 at 22:04 UTC. This page is informational and not investment advice.

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