Ciena CIEN Institutional Ownership

NYSE CIEN

$356.56 -1.87 (-0.52%)

As of: Sep 25, 2026 · 3:59 PM EDT

Institutions by Trading Activity

1,226 Institutions

Increased 732 59.7%

Unchanged 114 9.3%

Reduced 380 31.0%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

94.21%

▼-0.74 pp QoQ

Shares Held by Institutions

133.72Mn

of 141.95Mn outstanding

▲+2.17% QoQ

Shares Outstanding

141.95Mn

8.23Mn held outside 13F filers

Institutional Investors

1,226

filed 13F for Jun 2026

▲+148 vs prior quarter

Net Shares Added (QoQ)

+2.83Mn

accumulated since last quarter

Value of Holdings

$47.95Bn

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) is held by 1,225 institutional investors per 13F filings through June 2026.

These investors collectively held 94.2% of Ciena's outstanding shares in June 2026, down from 95.0% in March 2026.
They increased total shares held in CIEN by 2.15% quarter over quarter, and investors in Ciena increased 118.75% from a year ago.
Of these 1,225 funds, 731 grew their exposure to Ciena, 380 cut back, and 114 maintained positions.
In total, institutional investors held 133.69Mn shares in Ciena 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.
The biggest buyers of Ciena for the quarter ending June 2026 included 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).
Leading sellers of Ciena shares 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).
Business Quant data shows the 10 biggest positions in Ciena as of June 2026 are held by 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

1,226 Institutional Holders

Report period 30 Jun, 2026

Total shares held 133.72Mn

Of outstanding 94.21%

#	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 1,226 holders