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Ciena (CIEN) — large price moves

Information Technology · NYSE

Single sessions where CIEN closed 10% or more away from the previous close, between 2025-10-08 and 2026-10-08. Each one lists the events filed in the 5 days ending at that session, in date order.

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Of the 12 moves listed, 5 have at least one filed event in the 5 days ending at the session, and 7 have none. Across the catalog most large moves have nothing filed near them, so an empty list is an ordinary result and not a gap.

Moves

  • 2026-10-06 +13.8% $389.69 to $443.65 filed events in the 5 days to 2026-10-06
    • 2026-09-30 Analyst consensus Consensus price target moved upconsensus target $504.13 to $516.83 · between snapshots 2026-09-09 and 2026-09-30 · 19 analystsSource: Analyst consensus snapshots
    • 2026-10-01 Insider trade Open-market sale reported by an insider3 transactions · 3 insiders · $1,714,502Source: SEC Form 4
  • 2026-09-03 -10.4% $354.16 to $317.46 filed events in the 5 days to 2026-09-03
    • 2026-09-01 Insider trade Open-market sale reported by an insider1 transaction · 1 insider · $1,071,278Source: SEC Form 4
    • 2026-09-02 Analyst consensus Consensus price target moved downconsensus target $565.71 to $557.29 · between snapshots 2026-08-11 and 2026-09-02 · 19 analystsSource: Analyst consensus snapshots
    • 2026-09-03 Earnings Quarterly results reportedquarter ended 2026-07-31 · reported EPS USD 2.11 against an estimate of USD 1.73 · surprise +22.1%Source: SEC filing calendar + Yahoo earnings history
    • 2026-09-03 Periodic filing 10-Q filedaccession 0001628280-26-060361Source: SEC EDGAR
    • 2026-09-03 Material event 8-K filed (material event)accession 0001628280-26-060245Source: SEC EDGAR
    • 2026-09-03 Filing language risk_factors changed in the 10-Qsection risk_factors · accession 0001628280-26-060361Source: SEC EDGAR (section comparison against the prior filing)
    • 2026-09-03 Filing language mdna changed in the 10-Qsection mdna · accession 0001628280-26-060361Source: SEC EDGAR (section comparison against the prior filing)
  • 2026-08-12 +11.5% $387.53 to $432.05 filed events in the 5 days to 2026-08-12

    No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.

  • 2026-07-30 +12.6% $330.37 to $372.07 filed events in the 5 days to 2026-07-30

    No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.

  • 2026-06-04 -13.7% $620.37 to $535.63 filed events in the 5 days to 2026-06-04
    • 2026-06-01 Insider trade Open-market sale reported by an insider1 transaction · 1 insider · $1,670,597Source: SEC Form 4
    • 2026-06-04 Earnings Quarterly results reportedquarter ended 2026-04-30 · reported EPS USD 1.64 against an estimate of USD 1.46 · surprise +12.3%Source: SEC filing calendar + Yahoo earnings history
    • 2026-06-04 Periodic filing 10-Q filedaccession 0001628280-26-040767Source: SEC EDGAR
    • 2026-06-04 Material event 8-K filed (material event)accession 0001628280-26-040614Source: SEC EDGAR
    • 2026-06-04 Filing language risk_factors changed in the 10-Qsection risk_factors · accession 0001628280-26-040767Source: SEC EDGAR (section comparison against the prior filing)
    • 2026-06-04 Filing language mdna changed in the 10-Qsection mdna · accession 0001628280-26-040767Source: SEC EDGAR (section comparison against the prior filing)
  • 2026-06-02 +10.1% $569.61 to $627.00 filed events in the 5 days to 2026-06-02
    • 2026-05-29 House disclosure Disclosed purchase by a U.S. House member1 disclosure · 1 memberSource: U.S. House Clerk periodic transaction reports
    • 2026-06-01 Insider trade Open-market sale reported by an insider1 transaction · 1 insider · $1,670,597Source: SEC Form 4
  • 2026-04-30 +11.0% $475.39 to $527.58 filed events in the 5 days to 2026-04-30

    No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.

  • 2026-04-08 +10.3% $447.88 to $494.01 filed events in the 5 days to 2026-04-08

    No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.

  • 2026-03-26 -11.4% $437.70 to $387.99 filed events in the 5 days to 2026-03-26

    No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.

  • 2026-03-05 -12.9% $343.55 to $299.30 filed events in the 5 days to 2026-03-05
    • 2026-03-05 Earnings Quarterly results reportedquarter ended 2026-01-31 · reported EPS USD 1.35 against an estimate of USD 1.17 · surprise +15.6%Source: SEC filing calendar + Yahoo earnings history
    • 2026-03-05 Periodic filing 10-Q filedaccession 0001628280-26-015152Source: SEC EDGAR
    • 2026-03-05 Material event 8-K filed (material event)accession 0001628280-26-015006Source: SEC EDGAR
  • 2026-01-08 -13.1% $259.27 to $225.21 filed events in the 5 days to 2026-01-08

    No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.

  • 2026-01-06 +10.1% $230.90 to $254.19 filed events in the 5 days to 2026-01-06

    No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.

These are events filed near a session, listed by date. They are not ranked, and no connection between an event and a price move is stated or implied.

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See the full company profile: Ciena (CIEN).

Informational only — NOT financial advice. Price moves are computed from stored daily closes; filed events come from their own sources with their own dates.