Ciena CIEN Institutional Ownership

NYSE CIEN

$356.54 -3.06 (-0.85%)

As of: Oct 15, 2026 · 3:59 PM EDT

As of the 13F quarter ended Jun 30, 2026, 1,218 institutions held 92.94% of Ciena (CIEN) shares outstanding. Versus the prior quarter, institutional ownership was down 1.79 percentage points, the holder count rose by 141 and shares held were down 1.70%. The largest holder is FMR LLC with 19.11Mn shares (13.47% of outstanding).

Updated Oct 11, 2026 Ciena (CIEN) stock price and overview

Institutions by Trading Activity

1,218 Institutions

Increased 727 59.7%

Unchanged 112 9.2%

Reduced 379 31.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

92.94%

▼-1.79 pp QoQ

Shares Held by Institutions

131.92Mn

of 141.95Mn outstanding

▼-1.70% QoQ

Shares Outstanding

141.95Mn

10.03Mn held outside 13F filers

Institutional Investors

1,218

filed 13F for Jun 2026

▲+141 vs prior quarter

Net Shares Added (QoQ)

-2.28Mn

distributed since last quarter

Value of Holdings

$47.42Bn

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

Updated Oct 11, 2026

Ciena Corp (NYSE:CIEN) had 1,218 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

Together they owned 92.94% of the outstanding stock in Q2 2026, down from 94.72% a quarter earlier.
Total shares held in CIEN fell 1.70% from Q1 2026; the number of holders rose 118.28% from Q2 2025.
Of the 1,218 holders of CIEN in Q2 2026, 727 added to their positions, 379 reduced their stakes and 112 left their positions unchanged.
In total, institutional investors held 131.92Mn shares of Ciena at the end of Q2 2026, down 2.28Mn from the prior quarter and down 6.9Mn from a year earlier.
FMR LLC held the largest position in CIEN at 19.11Mn shares as of June 30, 2026, or 13.47% of shares outstanding.
Among existing holders, the largest additions to Ciena in Q2 2026 came from American Century Companies Inc (+1.32Mn shares), JPMorgan Chase & Co (+979.56K shares), Nuveen, LLC (+547.24K shares), State Street Corp (+371.53K shares) and Pictet Asset Management Holding SA (+354.86K shares).
The largest position reductions in CIEN for Q2 2026 were by FMR LLC (-2.1Mn shares), Capital Research Global Investors (-2.09Mn shares), T. Rowe Price Associates Inc (-1.17Mn shares), Jericho Capital Asset Management L.P. (-1.09Mn shares) and Geode Capital Management, LLC (-695.1K shares).
Per Business Quant data, the 10 largest holders of Ciena at the end of Q2 2026 were FMR LLC (19.11Mn shares), BlackRock, Inc. (12.72Mn shares), JPMorgan Chase & Co (11.21Mn shares), Vanguard Capital Management LLC (9.23Mn shares), Vanguard Portfolio Management LLC (7.68Mn shares), State Street Corp (6.68Mn shares), T. Rowe Price Associates Inc (4.07Mn shares), Geode Capital Management, LLC (3.37Mn shares), American Century Companies Inc (1.85Mn shares) and Bank of America Corp (1.79Mn shares).

Form 13F Holdings

1,221 Institutional Holders

Report period 30 Jun, 2026

Total shares held 131.92Mn

Of outstanding 92.94%

#	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
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
20	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0000861177	1,145,480	0.81%	▲293,548	+34.46%	$561.93Mn

Showing 1 to 20 of 1,221 holders