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Ciena (CIEN) Ownership - Who Owns Ciena?

3,229 Followers

Ciena (CIEN) Ownership Overview

11.25% Other Institutional Investors

29.54% ETFs

24.14% Public Companies and Individual Investors

The ownership structure of Ciena (CIEN) stock is a mix of institutional, retail, and individual investors. Approximately 75.04% of the company’s stock is owned by Institutional Investors, 0.82% is owned by Insiders, and 24.14% is owned by Public Companies and Individual Investors.

The ownership structure of Ciena (CIEN) stock is a mix of institutional, retail, and individual investors. Approximately 45.50% of the company’s stock is owned by Institutional Investors, 0.82% is owned by Insiders, and 29.54% is owned by Public Companies and Individual Investors.

Recent Insider Trading Activity

Date	Name	Activity	Value
Dec 17, 2025	Thomas Michael Nevens	xxxxxxxxxxxxx	$1921742
Sep 26, 2025	Bruce L. Claflin	xxxxxxxxxxxxx	$1185555

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Recent Hedge Fund Trading Activity

Date	Firm	Activity	Value
Jun 30, 2026	North Growth Management Ltd.	xxxxxxxxxxxxx	$55433280
Jun 30, 2026	Graham Capital Management, L.p.	xxxxxxxxxxxxx	$98603
Jun 30, 2026	Atreides Management, Lp	xxxxxxxxxxxxx	$337760862
Jun 30, 2026	Primecap Management Co	xxxxxxxxxxxxx	$151117008

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Top Shareholders

# of Shares	Type	% Holding	Value
16,174,759	Institution	11.43%	6,535,087,879
13,691,093	Institution	9.67%	5,531,612,305
12,419,175	Institution	8.77%	5,017,719,275
10,532,843	Institution	7.44%	4,255,584,557
4,071,474	Institution	2.88%	1,644,997,640
3,658,622	Institution	2.58%	1,478,193,047
2,586,272	Institution	1.83%	1,044,931,476
2,337,207	Institution	1.65%	944,301,744
1,740,050	Institution	1.23%	703,032,402
1,450,022	Institution	1.02%	585,852,389

Top Mutual Fund Holders

# of Shares	Type	% Holding	Value
13,691,093	Institution	9.67%	5,531,612,305
10,532,843	Institution	7.44%	4,255,584,557
3,658,622	Institution	2.58%	1,478,193,047
2,586,272	Institution	1.83%	1,044,931,476
1,740,050	Institution	1.23%	703,032,402
1,450,022	Institution	1.02%	585,852,389
954,231	Institution	0.67%	385,537,951
942,194	Institution	0.67%	380,674,642
892,142	Institution	0.63%	360,452,132
871,718	Institution	0.62%	352,200,224

Top ETF Holders

Holder	# of Shares	Type	% Holding	Value
iShares S&P Mid-Cap ETF CDI	4,610,230	Institution	3.26%	224,933,122
Vanguard Total Stock Market ETF	4,502,649	Institution	3.18%	1,697,723,805
Vanguard S&P 500 ETF	3,711,569	Institution	2.62%	1,399,447,091
Vanguard Mid-Cap ETF	3,060,152	Institution	2.16%	1,153,830,312
iShares Core S&P 500 ETF	1,887,118	Institution	1.33%	762,452,286
SPDR S&P 500 ETF Trust	1,723,916	Institution	1.22%	668,293,277
Vanguard Growth ETF	1,611,539	Institution	1.14%	607,630,780
Technology Select Sector SPDR Fund	1,128,581	Institution	0.80%	437,505,710
Vanguard Mid-Cap Growth ETF	1,081,141	Institution	0.76%	407,644,214
Vanguard Information Technology ETF	1,068,081	Institution	0.75%	402,719,941

FAQ

Who Owns Ciena (CIEN)?

According to the latest TipRanks data, approximately 11.25% of the company's stock is held by institutional investors, 0.82% is held by insiders, and 24.14% is held by retail investors.

What percentage of Ciena (CIEN) stock is held by institutional investors?

According to the latest TipRanks data, approximately 11.25% of Ciena (CIEN) stock is held by institutional investors.

What percentage of Ciena (CIEN) stock is held by retail investors?

According to the latest TipRanks data, approximately 24.14% of Ciena (CIEN) stock is held by retail investors.

Who owns the most shares of Ciena (CIEN)?

Vanguard owns the most shares of Ciena (CIEN).

What is the significance of the ownership structure for a publicly traded company?

The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.