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Ciena CIEN · USD

Information Technology · Communications Equipment · US listing · 🇺🇸 United States

S&P 500

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269.33

+10.66%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
FMR LLC21.2m15.06%+81.5k31 Mar 2026
BLACKROCK, INC.13.4m9.50%−3.3m31 Mar 2026
JPMORGAN CHASE & CO10.2m7.26%−637.6k31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC9.2m6.51%+9.2m31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC7.4m5.23%+7.4m31 Mar 2026
STATE STREET CORP6.3m4.48%+1.2m31 Mar 2026
PRICE T ROWE ASSOCIATES INC /MD/5.2m3.72%+1.2m31 Mar 2026
GEODE CAPITAL MANAGEMENT, LLC4.1m2.89%+1.4m31 Mar 2026
CAPITAL RESEARCH GLOBAL INVESTORS2.8m1.95%+2.8m31 Mar 2026
BANK OF AMERICA CORP /DE/2m1.39%−209.8k31 Mar 2026
CAPITAL WORLD INVESTORS1.7m1.22%−144.1k31 Mar 2026
JERICHO CAPITAL ASSET MANAGEMENT L.P.1.7m1.18%—31 Mar 2026
MORGAN STANLEY1.6m1.11%+176.6k31 Mar 2026
INVESCO LTD.1.5m1.09%+11.5k31 Mar 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP1.4m0.99%−848.4k31 Mar 2026

Insider trades

Purchases and sales by directors and officers, as filed with the regulator

DateWhoTypeSharesPriceValue
27 Mar 2026 ↗Cumello JosephSVP, General Mgr. Blue PlanetSale1.8k394.82$700,016
24 Mar 2026 ↗Gage BrodieSVP Global Products & SupplySale5k405.00$2.0m
16 Mar 2026 ↗SMITH GARY BPresident, CEOSale3k359.53$1.1m
16 Mar 2026 ↗Rothenstein David MSVP and Chief Strategy OfficerSale2.5k345.00$862,500
2 Mar 2026 ↗SMITH GARY BPresident, CEOSale3k354.64$1.0m
17 Feb 2026 ↗Rothenstein David MSVP and Chief Strategy OfficerSale2.5k300.20$750,498

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

4m

+3.0% on the period before. 1.2 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

23.8%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 15 Sept 2026901 shares
  • 10 Sept 20261,210 shares
  • 8 Sept 202639,058 shares
  • 4 Sept 20265,416 shares
  • 3 Sept 20266,491 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.