Ciena Corp (CIEN) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

145,518,000Shares Outstanding

147,797,963Shares held by institutions

$85,412,442,818Value of institutional holdings

101.57%Institutional ownership %

5.15%Shares Changed QoQ

832No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Ciena Corp (NYSE:CIEN) appears in 825 institutional 13F filings for the quarter ending December 2025.

These investors held 101.1% of outstanding shares in December 2025, down from 103.5% in September 2025.
Their total shares held in CIEN increased 4.85% quarter over quarter, and separately, investors owning Ciena increased 56.55% from a year ago.
During the quarter, 486 of these 825 funds increased positions in CIEN, 269 reduced exposure, and 70 held steady.
Combined, these investors held 147.08Mn shares in CIEN for December 2025, up by 6.8Mn shares quarter on quarter, and down 4.32Mn shares year over year.
Assenagon Asset Management S.A. is the top holder of Ciena as of December 31, 2025, with 364.55K shares representing 0.25% of outstanding stock.
The most significant purchases of CIEN for the quarter ending December 2025 came from WEALTH ENHANCEMENT ADVISORY SERVICES, LLC (290.12K), Robeco Institutional Asset Management B.V. (215.77K), SG Americas Securities, LLC (113.74K), E Fund Management Co., Ltd. (47.95K), Czech National Bank (38.36K).
Top sellers of CIEN stock for the quarter ending December 2025 included Assenagon Asset Management S.A. (149.7K), Retirement Systems of Alabama (139.38K), North Growth Management Ltd. (90.0K), GF FUND MANAGEMENT CO. LTD. (84.0K), OPPENHEIMER ASSET MANAGEMENT INC. (40.7K).
Per Business Quant, the top 10 investors in CIEN for the quarter ending December 2025 include Assenagon Asset Management S.A. (364.55K), WEALTH ENHANCEMENT ADVISORY SERVICES, LLC (290.12K), Robeco Institutional Asset Management B.V. (267.94K), Amanah Holdings Trust (200.0K), SG Americas Securities, LLC (190.95K), North Growth Management Ltd. (157.0K), GF FUND MANAGEMENT CO. LTD. (107.98K), Orange Investment Advisors, Inc. (75.74K), Pictet Asset Management Holding SA (59.83K), M & L Capital Management Ltd (55.73K).

840 Institutional Holders

147,797,963 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
FMR LLC	31 Dec, 2025	21,128,210	-30,176	-0.14%	$4,941,254,307.00
BlackRock, Inc.	31 Dec, 2025	16,668,830	1,072,719	6.88%	$3,898,339,156.00
VANGUARD GROUP INC	31 Dec, 2025	14,376,579	-692,023	-4.59%	$3,362,250,530.00
Elyxium Wealth, LLC	31 Dec, 2025	11,749,306	11,749,306	0.00%	$11,783,072.00
Jpmorgan Chase & Co	31 Dec, 2025	10,864,292	-2,061,388	-15.95%	$2,540,832,224.00
State Street Corp	31 Dec, 2025	5,102,409	750,128	17.24%	$1,193,300,393.00
Corient Private Wealth LLC	31 Dec, 2025	2,894,990	2,885,489	30,370.37%	$11,370,939.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	2,687,437	145,948	5.74%	$627,567,346.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	2,236,835	1,092,980	95.55%	$523,128,601.00
Bank Of America Corp /De/	31 Dec, 2025	2,164,447	-4,098,381	-65.44%	$506,199,208.00
BNP Paribas Asset Management Holding S.A.	31 Dec, 2025	1,973,150	-533,036	-21.27%	$461,478.00
Capital World Investors	31 Dec, 2025	1,868,881	31,900	1.74%	$437,075,199.00
Jericho Capital Asset Management L.P.	31 Dec, 2025	1,656,172	-326,828	-16.48%	$387,328,946.00
Invesco Ltd.	31 Dec, 2025	1,518,841	280,096	22.61%	$355,211,346.00
Atreides Management, LP	31 Dec, 2025	1,428,230	27,466	1.96%	$334,020,150.00
AQR CAPITAL MANAGEMENT LLC	31 Dec, 2025	1,412,560	-89,908	-5.98%	$330,355,301.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	1,396,874	-598,825	-30.01%	$326,720,052.00
Morgan Stanley	31 Dec, 2025	1,384,972	-356,903	-20.49%	$323,903,769.00
Polar Capital Holdings Plc	31 Dec, 2025	1,289,427	-173,784	-11.88%	$301,558,292.00
Northern Trust Corp	31 Dec, 2025	1,216,923	33,809	2.86%	$284,601,781.00

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