Why Cerus Corporation (CERS) stock fell 5.7% intraday on Tuesday, November 3, 2026

Cerus Corporation (CERS) traded at $2.23 as of 11:31 AM ET, down 5.72% on Tuesday, November 3, 2026, on volume of 1,298,933 shares (0.6× its 3-month average); market value about $400.0M.

CERS was among the stocks moving 5% or more in an earlier update that day; by the close it was no longer moving that much.

What happened: primary sources

Events Nexqual found for CERS on Tuesday, November 3, 2026 or the trading day before (November 2, 2026):

• Nov 2, 2026: Reported quarterly results (SEC 8-K) for the quarter ended Sep 30, 2026: EPS $0.00 vs consensus −$0.01 (beat), on the analysts' basis (usually adjusted, not GAAP). source
• Nov 2, 2026: SEC 10-Q: Quarterly report, period ended Sep 30, 2026 source
• Nov 3, 2026: One of 3 Medical Devices stocks among the day's biggest losers (BVS, INSP, CERS), with no comparable group among the biggest gainers

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 CERS

CERS stock page: price, SEC financials, insider trades, superinvestor holders, analyst estimates and options. Other big moves that day: November 3, 2026.

Sources: SEC EDGAR, Nexqual Earnings Flash, analyst rating changes, Nexqual market data. Built November 4, 2026 at 09:52 UTC. Not investment advice.

Data source: Nexqual. Last updated: November 4, 2026 at 09:52 UTC. This page is informational and not investment advice.

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