Ciena CIEN Institutional Ownership

NYSE CIEN

$321.08 +5.45 (+1.73%)

At close: Sep 4, 2026 · 4:00 PM EDT

Institutions by Trading Activity

1,223 Institutions

Increased 730 59.7%

Unchanged 114 9.3%

Reduced 379 31.0%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

94.18%

▼-0.77 pp QoQ

Shares Held by Institutions

133.69Mn

of 141.95Mn outstanding

▲+2.15% QoQ

Shares Outstanding

141.95Mn

8.26Mn held outside 13F filers

Institutional Investors

1,223

filed 13F for Jun 2026

▲+146 vs prior quarter

Net Shares Added (QoQ)

+2.81Mn

accumulated since last quarter

Value of Holdings

$42.20Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Ciena Corp (NYSE:CIEN) has 1,223 institutional investors that have filed 13F reports for the period ending June 2026.

Collectively, these holders controlled 94.2% of Ciena's outstanding shares in June 2026, down from 95.0% in March 2026.
Their total shares held in CIEN increased 2.15% quarter over quarter, and separately, investors owning Ciena increased 118.39% from a year ago.
Among the 1,223 funds, 730 bought more Ciena shares, 379 sold down, and 114 held their ground.
The aggregate institutional position in Ciena amounted to 133.69Mn shares as of June 2026, up by 2.81Mn shares quarter on quarter, and down 8.09Mn shares year over year.
FMR LLC leads ownership in CIEN with 19.11Mn shares as of June 30, 2026, equal to 13.47% of outstanding shares.
Leading buyers of Ciena shares for the quarter ending June 2026 were NORGES BANK (1.7Mn), AMERICAN CENTURY COMPANIES INC (1.32Mn), Sixth Street Partners Management Company, L.P. (1.25Mn), Jpmorgan Chase & Co (979.56K), Nuveen, LLC (547.24K).
The largest sellers of Ciena for the quarter ending June 2026 were FMR LLC (2.1Mn), Capital Research Global Investors (2.09Mn), PRICE T ROWE ASSOCIATES INC /MD/ (1.17Mn), Jericho Capital Asset Management L.P. (1.09Mn), GEODE CAPITAL MANAGEMENT, LLC (695.1K).
According to Business Quant data, leading holders of CIEN for June 2026 are FMR LLC (19.11Mn), BlackRock, Inc. (12.72Mn), Jpmorgan Chase & Co (11.21Mn), VANGUARD CAPITAL MANAGEMENT LLC (9.23Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (7.68Mn), State Street Corp (6.68Mn), PRICE T ROWE ASSOCIATES INC /MD/ (4.07Mn), GEODE CAPITAL MANAGEMENT, LLC (3.37Mn), AMERICAN CENTURY COMPANIES INC (1.85Mn), Bank Of America Corp /De/ (1.79Mn).

Form 13F Holdings

1,224 Institutional Holders

Report period 30 Jun, 2026

Total shares held 133.69Mn

Of outstanding 94.18%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	FMR LLC	0000315066	19,113,538	13.47%	▼2,096,218	-9.88%	$9.38Bn
2	BlackRock, Inc.	0002012383	12,718,494	8.96%	▼655,293	-4.90%	$6.24Bn
3	Jpmorgan Chase & Co	0000019617	11,206,209	7.89%	▲979,560	+9.58%	$5.37Bn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	9,233,803	6.51%	▲64,448	+0.70%	$4.53Bn
5	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	7,680,665	5.41%	▲311,541	+4.23%	$3.77Bn
6	State Street Corp	0000093751	6,680,578	4.71%	▲371,528	+5.89%	$3.28Bn
7	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	4,071,401	2.87%	▼1,171,401	-22.34%	$2.00Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	3,370,462	2.37%	▼695,097	-17.10%	$1.65Bn
9	AMERICAN CENTURY COMPANIES INC	0000748054	1,851,788	1.30%	▲1,315,946	+245.58%	$908.41Mn
10	Bank Of America Corp /De/	0000070858	1,788,582	1.26%	▼166,050	-8.50%	$877.41Mn
11	Capital World Investors	0001422849	1,755,602	1.24%	▲30,795	+1.79%	$861.23Mn
12	Invesco Ltd.	0000914208	1,730,210	1.22%	▲199,917	+13.06%	$848.77Mn
13	NORGES BANK	0001374170	1,703,155	1.20%	▲1,703,155	0.00%	$835.50Mn
14	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	1,677,029	1.18%	▲288,552	+20.78%	$822.68Mn
15	Morgan Stanley	0000895421	1,634,630	1.15%	▲73,076	+4.68%	$801.88Mn
16	Nuveen, LLC	0001871926	1,391,429	0.98%	▲547,236	+64.82%	$682.58Mn
17	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	1,248,995	0.88%	▼23,263	-1.83%	$612.71Mn
17	Sixth Street Partners Management Company, L.P.	0001812095	1,248,995	0.88%	▲1,248,995	0.00%	$612.71Mn
18	Northern Trust Corp	0000073124	1,217,939	0.86%	▲30,648	+2.58%	$597.47Mn
19	DIMENSIONAL FUND ADVISORS LP	0000354204	1,153,229	0.81%	▲7,209	+0.63%	$565.63Mn

Showing 1 to 20 of 1,224 holders