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 14.97% of CIEN shares. Fidelity Growth Compy Commingled Pl S is the top mutual fund, with 6.41% of its assets in Ciena shares.

CIEN Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockCiena94.54%0.59%4.87%
SectorTechnology Stocks 36.93%14.89%48.18%
Idea5G Stocks List60.62%8.11%31.27%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Fmr21.21M14.97%$8.23B
Blackrock15.61M10.77%$752.08M
Vanguard group14.38M10.11%$3.36B
Blackrock funding, inc. /de13.37M9.44%$5.19B
Jpmorgan chase10.23M7.22%$3.73B
State street6.31M4.45%$2.45B
Price t rowe associates inc /md/5.24M3.70%$2.04B
Geode capital management4.07M2.87%$1.58B
Capital research global investors2.75M1.94%$1.07B
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
North growth management157.00K9.34%$61.03M
Thorntree capital partners lp130.27K8.97%$50.58M
O'neil global advisors3.33K8.97%$1.29M
Amanah trust200.00K8.55%$77.65M
Foursixthree capital lp198.50K7.95%$28.92M
Elyxium wealth57.85K7.20%$22.46M
Titan global capital management usa118.31K6.84%$45.93M
M & l capital management55.73K5.32%$21.64M

Top Buyers

HolderShares% AssetsChange
Capital research global investors2.75M0.17%2.75M
Geode capital management4.07M0.10%1.38M
State street6.31M0.08%1.21M
Price t rowe associates inc /md/5.24M0.24%1.19M
Norges bank811.95K0.02%811.95K

Top Sellers

HolderShares% AssetsChange
Elyxium wealth57.85K7.20%-11.69M
Blackrock funding, inc. /de13.37M0.09%-3.30M
Slate path capital lp---2.18M
Ion asset management211.92K3.39%-999.34K
Bnp paribas asset management1.02M0.46%-951.56K

New Positions

HolderShares% AssetsChangeValue
Capital research global investors2.75M0.17%2.75M$1.07B
Norges bank811.95K0.02%811.95K$189.89M
Vanguard fiduciary trust793.40K0.08%793.40K$308.02M
Artisan partners limited partnership434.29K0.09%434.29K$63.26M
Axa investment managers316.24K0.12%316.24K$46.07M

Sold Out

HolderChange
Fairman group-1.00
New millennium group-1.00
Mendota financial group-2.00
Tfo-tdc-2.00
Hhm wealth advisors-3.00

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 S9.06M6.41%20.83K
Fidelity Growth Company Fund6.85M4.84%18.43K
iShares Core S&P Mid-Cap ETF4.63M3.28%-
Vanguard US Total Market Shares ETF4.57M3.21%3.85K
Vanguard Total Stock Mkt Idx Inv4.51M3.19%16.13K
Fidelity Growth Compy Commingled Pl O4.10M2.84%15.49K
Vanguard 500 Index Investor3.65M2.58%66.02K
JPMorgan Large Cap Growth I3.33M2.35%-
JPM US Large Cap Growth-MA2.90M2.05%2.90M
Fidelity Growth Company K61.93M1.37%-9.57K

Recent Insider Transactions


DateNameRoleActivityValue
Jun 01, 2026SMITH GARY B President, CEOSell$1.67M
May 15, 2026SMITH GARY B President, CEOSell$1.66M
May 15, 2026Rothenstein David M SVP and Chief Strategy OfficerSell$1.41M
May 15, 2026Gage Brodie SVP Global Products & SupplySell$684.78K
May 01, 2026SMITH GARY B President, CEOSell$1.59M

Insider Transactions Trends


DateBuySell
2026 Q2-27
2026 Q1-18
2025 Q4-19
2025 Q3-18
2025 Q2-16

CIEN Ownership FAQ


Who owns the most shares of Ciena?

Ciena’s largest shareholders are Fmr (21.21M shares, 14.97%), Blackrock (15.61M shares, 10.77%), and Vanguard group (14.38M shares, 10.11%). Together, they hold 35.85% 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 6.41% of its total shares outstanding invested in 9.06M Ciena shares.

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