HANOVER, MD
CIENA CORPCIEN— Latest position per institution from SEC 13F filings
15
Institutional holders
122.49M
Total shares held
46.48B
Estimated value
6.12M
Avg. position size
FMR LLC
CIK 315066
Shares
19.11M
Value
9.38B
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
15.61M
Value
752.08M
Filed
Jun 30, 2024
VANGUARD GROUP INC
CIK 102909
Shares
14.38M
Value
3.36B
Filed
Dec 31, 2025
BLACKROCK, INC.
CIK 2012383
Shares
12.72M
Value
6.24B
Filed
Jun 30, 2026
JPMORGAN CHASE & CO
CIK 19617
Shares
11.21M
Value
5.37B
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
9.23M
Value
4.53B
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
7.68M
Value
3.77B
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
6.68M
Value
3.28B
Filed
Jun 30, 2026
PRICE T ROWE ASSOCIATES INC /MD/
CIK 80255
Shares
4.07M
Value
2M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
3.37M
Value
1.65B
Filed
Jun 30, 2026
SLATE PATH CAPITAL LP
CIK 1559706
Shares
2.18M
Value
184.85M
Filed
Dec 31, 2024
JANE STREET GROUP, LLC
CIK 1595888
Shares
2.15M
Value
1.06B
Filed
Jun 30, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
1.96M
Value
959.11M
Filed
Jun 30, 2026
AMERICAN CENTURY COMPANIES INC
CIK 748054
Shares
1.85M
Value
908.41M
Filed
Jun 30, 2026
BANK OF AMERICA CORP /DE/
CIK 70858
Shares
1.79M
Value
877.41M
Filed
Jun 30, 2026
CAPITAL WORLD INVESTORS
CIK 1422849
Shares
1.76M
Value
861.23M
Filed
Jun 30, 2026
INVESCO LTD.
CIK 914208
Shares
1.73M
Value
848.77M
Filed
Jun 30, 2026
NORGES BANK
CIK 1374170
Shares
1.70M
Value
835.50M
Filed
Jun 30, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 1164508
Shares
1.68M
Value
822.68M
Filed
Jun 30, 2026
MORGAN STANLEY
CIK 895421
Shares
1.63M
Value
801.88M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | FMR LLC | 315066 | 19.11M | 9.38B | Jun 30, 2026 |
| 2 | BLACKROCK FINANCE, INC. | 1364742 | 15.61M | 752.08M | Jun 30, 2024 |
| 3 | VANGUARD GROUP INC | 102909 | 14.38M | 3.36B | Dec 31, 2025 |
| 4 | BLACKROCK, INC. | 2012383 | 12.72M | 6.24B | Jun 30, 2026 |
| 5 | JPMORGAN CHASE & CO | 19617 | 11.21M | 5.37B | Jun 30, 2026 |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 9.23M | 4.53B | Jun 30, 2026 |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 7.68M | 3.77B | Jun 30, 2026 |
| 8 | STATE STREET CORP | 93751 | 6.68M | 3.28B | Jun 30, 2026 |
| 9 | PRICE T ROWE ASSOCIATES INC /MD/ | 80255 | 4.07M | 2M | Jun 30, 2026 |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 3.37M | 1.65B | Jun 30, 2026 |
| 11 | SLATE PATH CAPITAL LP | 1559706 | 2.18M | 184.85M | Dec 31, 2024 |
| 12 | JANE STREET GROUP, LLC | 1595888 | 2.15M | 1.06B | Jun 30, 2026 |
| 13 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 1.96M | 959.11M | Jun 30, 2026 |
| 14 | AMERICAN CENTURY COMPANIES INC | 748054 | 1.85M | 908.41M | Jun 30, 2026 |
| 15 | BANK OF AMERICA CORP /DE/ | 70858 | 1.79M | 877.41M | Jun 30, 2026 |
| 16 | CAPITAL WORLD INVESTORS | 1422849 | 1.76M | 861.23M | Jun 30, 2026 |
| 17 | INVESCO LTD. | 914208 | 1.73M | 848.77M | Jun 30, 2026 |
| 18 | NORGES BANK | 1374170 | 1.70M | 835.50M | Jun 30, 2026 |
| 19 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1164508 | 1.68M | 822.68M | Jun 30, 2026 |
| 20 | MORGAN STANLEY | 895421 | 1.63M | 801.88M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.