CIEN

CIENA CORP

CIEN·171779309·US·Common Stock·Technology - Communication Equipment-13D/G

CIEN (CIENA CORP) is held by 321 institutional investors as of Q2 2026. Largest holders: FMR LLC ($9.4B), BlackRock, Inc. ($6.2B), JPMORGAN CHASE & CO ($5.4B). Net institutional sentiment: Mixed. In Q2 2026, 4 members of Congress and 208 funds bought CIEN.

321
Holders
(27 Elite)
$58.4B
Total Value
63% (332)
Consensus
208 buying - 124 selling
13F: Insider & Congress: Updated regularly
CIEN

Smart Money Verdict

View all
Loading verdict
Held by 321 funds
27 elite

Who's Trading

Source dates: Price Aug 28, 2026 · Insiders Aug 18, 2026 · Activists Aug 6, 2026 · Congress Jul 21, 2026

InsiderSBSMITH GARY BSell $1.3MAug 17, 2026
InsiderGBGage BrodieSell $527KAug 17, 2026
InsiderRMRothenstein David MSell $1.1MAug 14, 2026
Checking access…

Top Holders

Checking access…
Fund
Action
Shares
Value
Weight
Est. P&L
Conviction
Decreased
19.1M(-9.9%)$9.4B0.4%+369.93%
0
Decreased
12.7M(-4.9%)$6.2B0.1%+328.01%
0
Increased
11.2M(+9.6%)$5.4B0.3%+164.93%
42
Increased
9.2M(+0.7%)$4.5B0.1%+3.88%
32
Increased
7.7M(+4.2%)$3.8B0.2%+2.97%
40
Increased
6.7M(+5.9%)$3.3B0.1%+162.43%
34
Decreased
3.4M(-17.1%)$1.6B0.1%+139.72%
0
Increased
1.9M(+245.6%)$908.4M0.4%-3.88%
61
Decreased
1.8M(-8.5%)$877.4M0.1%+378.25%
0
Increased
1.8M(+1.8%)$861.2M0.1%+426.55%
39
Increased
1.7M(+13.1%)$848.8M0.1%+117.41%
36
Increased
1.7M(+20.8%)$822.7M0.4%+68.67%
45
Increased
1.6M(+4.7%)$801.9M0.0%+250.72%
33
Increased
1.4M(+64.8%)$682.6M0.2%+75.97%
55
Decreased
1.2M(-1.8%)$612.7M0.1%+201.67%
0
Increased
1.2M(+2.6%)$597.5M0.1%+503.80%
32
Increased
1.2M(+0.6%)$565.6M0.1%+659.73%
38
Increased
1.1M(+34.5%)$561.9M0.1%+61.50%
49
Increased
1.1M(+8.2%)$542.1M0.5%+409.56%
48
Increased
1.1M(+7.7%)$507.2M0.2%+265.92%
40

Showing 1-20 of 335

1 / 17
CIENCIENCIENA CORP

Other Technology stocks held by institutions

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer

Analytics tracking helps us improve the product. Essential functions stay on either way. How analytics data is used