Ciena Ownership | Who Owns Ciena?


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Ciena Ownership Summary


Ciena is owned by 94.54% institutional investors, 0.59% insiders, and 4.87% retail investors. Fmr is the largest institutional shareholder, holding 13.47% of CIEN shares. Fidelity Growth Compy Commingled Pl S is the top mutual fund, with 5.61% of its assets in Ciena shares.

CIEN Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockCiena94.54%0.59%4.87%
SectorTechnology Stocks 36.01%15.20%48.78%
Idea5G Stocks List60.62%8.11%31.27%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Fmr19.11M13.47%$9.38B
Blackrock15.61M10.77%$752.08M
Vanguard group14.38M10.11%$3.36B
Blackrock funding, inc. /de12.72M8.96%$6.24B
Jpmorgan chase11.21M7.89%$5.37B
Vanguard capital management9.23M6.50%$4.53B
State street6.68M4.71%$3.28B
Price t rowe associates inc /md/5.24M3.70%$2.04B
Geode capital management3.37M2.37%$1.65B
Bank of america corp /de/2.49M1.71%$119.73M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Anatole investment management313.44K16.99%$121.69M
Jericho capital asset management1.66M9.50%$642.98M
Thorntree capital partners lp130.27K8.97%$50.58M
M & l capital management62.93K8.35%$30.87M
Foursixthree capital lp198.50K7.95%$28.92M
North growth management113.00K7.11%$55.47M
Amanah trust200.00K5.76%$98.11M
Tuttle capital management15.63K5.17%$7.67M
Titan global capital management usa80.42K5.03%$39.45M
Analog century management lp247.41K4.59%$96.05M

Top Buyers

HolderShares% AssetsChange
Norges bank1.70M0.08%1.70M
American century companies1.85M0.40%1.32M
Price t rowe associates inc /md/5.24M0.24%1.19M
Jpmorgan chase11.21M0.30%979.56K
Lone pine capital809.52K2.51%809.52K

Top Sellers

HolderShares% AssetsChange
Slate path capital lp---2.18M
Fmr19.11M0.41%-2.10M
Capital research global investors656.55K0.04%-2.09M
Ion asset management211.92K3.39%-999.34K
Clal insurance enterprises---838.93K

New Positions

HolderShares% AssetsChangeValue
Norges bank1.70M0.08%1.70M$835.50M
Artisan partners limited partnership434.29K0.09%434.29K$63.26M
Altshuler shaham368.34K0.73%368.34K$58.32M
Axa investment managers316.24K0.12%316.24K$46.07M
Bit capital gmbh168.87K2.45%168.87K$82.84M

Sold Out

HolderChange
Fairman group-1.00
Clayton financial group-1.00
New millennium group-1.00
Tfo-tdc-2.00
Mendota financial group-2.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 20261,10625.11%133,944,777-10.16%940.85%61921.85%36634.07%
Dec 31, 2025602-16.27%92,892,719-33.26%650.68%339-5.57%190-27.20%
Sep 30, 202569019.17%138,609,2541.30%971.06%34713.77%24943.93%
Jun 30, 20255881.20%140,305,9213.37%981.09%3088.07%176-8.33%
Mar 31, 202516-97.12%1,999,114-98.57%10.01%7-97.69%5-96.97%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Fidelity Growth Compy Commingled Pl S7.94M5.61%-492.60K
Fidelity Growth Company Fund6.05M4.27%-346.40K
iShares Core S&P Mid-Cap ETF4.63M3.28%-
Vanguard US Total Market Shares ETF4.57M3.21%3.85K
Vanguard Total Stock Mkt Idx Inv4.49M3.17%-13.10K
Vanguard Morn Total Stk Mkt Idx Investor4.49M3.17%-13.10K
JPMorgan Large Cap Growth I4.31M3.04%979.70K
Fidelity Growth Compy Commingled Pl O4.10M2.84%15.49K
Vanguard 500 Index Investor3.67M2.59%-15.62K
Vanguard Mid Cap Index Institutional3.06M2.16%1.53M

Recent Insider Transactions


DateNameRoleActivityValue
Aug 03, 2026SMITH GARY B President, CEOSell$1.12M
Jul 15, 2026SMITH GARY B President, CEOSell$1.24M
Jul 15, 2026Rothenstein David M SVP and Chief Strategy OfficerSell$1.05M
Jul 15, 2026Gage Brodie SVP Global Products & SupplySell$538.98K
Jul 15, 2026DiPerna Dino SVP Global R&DSell$175.62K

Insider Transactions Trends


DateBuySell
2026 Q3-10
2026 Q2-32
2026 Q1-18
2025 Q4-19
2025 Q3-18

CIEN Ownership FAQ


Who owns the most shares of Ciena?

Ciena’s largest shareholders are Fmr (19.11M shares, 13.47%), Blackrock (15.61M shares, 10.77%), and Vanguard group (14.38M shares, 10.11%). Together, they hold 34.35% of Ciena’s total shares outstanding.

Does Blackrock own Ciena?

Yes, BlackRock owns 10.77% of Ciena, totaling 15.61M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 752.08M$. In the last quarter, BlackRock increased its holdings by 230.88K shares, a 1.50% change.

Who is Ciena’s biggest shareholder by percentage of total assets invested?

Anatole investment management is Ciena’s biggest shareholder by percentage of total assets invested, with 16.99% of its assets in 313.44K Ciena shares, valued at 121.69M$.

Who is the top mutual fund holder of Ciena shares?

Fidelity Growth Compy Commingled Pl S is the top mutual fund holder of Ciena shares, with 5.61% of its total shares outstanding invested in 7.94M Ciena shares.

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