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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

CIEN

CIENA CORP

Superinvestors

Institutional investors holding CIEN

Consensus →
InvestorFundWeightSharesValueQuarter
Stephen MandelLone Pine Capital2.51%809,522$314.3M2026Q1
Viking Global InvestorsViking Global Investors0.69%2,147,000$11.1M2003Q2
Chuck AkreAkre Capital Management0.45%5,500$447K2000Q4
Mairs & PowerMairs & Power Growth Fund0.01%2,800$1.1M2026Q1
First Eagle Investment ManagementFirst Eagle Investment Management0.00%2,600$1.0M2026Q1
Kenneth FisherFisher Asset Management0.00%610$237K2026Q1
Dodge & CoxDodge & Cox0.00%11,230$188K2014Q3
Francois RochonGiverny Capital0.00%661$33K2024Q1

Congressional Activity

Congressional data coming soon

Insider Activity

31

Total trades

$24.3M

Volume

0

Buys

31

Sells

Last trade: Jun 1, 2026

Insider Tradeslast 90 days

DateInsiderTypeValue
Jun 1, 2026Gary B SmithSell$1.7M
May 15, 2026Gary B SmithSell$1.7M

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.

May 15, 2026
Gary B Smith
Sell
$1.4M
May 15, 2026Gary B SmithSell$685K
May 1, 2026Gary B SmithSell$1.6M