Position in CIEN
as of Mar 31, 2026
· filed May 7, 2026
Position Value
$444,919,341
+$118,232,422 QoQ
Shares Held
1,146,020
-18.0% QoQ
Ownership
0.810%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 83.3689638924277.ToString("F0")%
Shared 12.779881677457636.ToString("F0")%
None 3.8511544301146574.ToString("F0")%
Common Shares in CIEN Over Time
Shares Held
Position Value (USD)
Position in Communication Equipment
Technology · as of Mar 31, 2026DIMENSIONAL FUND ADVISORS LP holds $4,767,598,711 across 31 Communication Equipment names. CIEN ranks #3 (9.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CSCO |
Cisco Systems, Inc.
|
27,615,249 | $2,142,667,167 | |
| 2 | MSI |
Motorola Solutions, Inc.
|
1,083,953 | $470,403,082 | |
| 3 | CIEN |
Ciena Corp
This page
|
1,146,020 | $444,919,341 | |
| 4 | HPE |
Hewlett Packard Enterprise Co
|
17,902,711 | $426,263,546 | |
| 5 | LITE |
Lumentum Holdings Inc.
|
359,173 | $252,412,415 | |
| 6 | VSAT |
Viasat Inc
|
4,789,539 | $219,360,883 | |
| 7 | ZBRA |
Zebra Technologies Corp
|
686,335 | $143,498,919 | |
| 8 | VIAV |
Viavi Solutions Inc.
|
4,311,625 | $143,490,877 |
All Filings in CIEN
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $444,919,341 | 1,146,020 | Shares | Defined | 2026-05-07 | |
| 2025-12-31 | $326,686,919 | 1,396,874 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $290,713,471 | 1,995,699 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $184,555,986 | 2,269,224 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $143,670,993 | 2,377,478 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $220,720,651 | 2,602,531 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $162,969,846 | 2,646,044 | Shares | Sole | 2024-11-07 | |
| 2024-06-30 | $130,389,917 | 2,706,308 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $107,949,101 | 2,182,995 | Shares | Sole | 2024-05-10 | |
| 2023-12-31 | $97,330,071 | 2,162,410 | Shares | Sole | 2024-02-07 | |
| 2023-09-30 | $86,496,620 | 1,830,229 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $71,069,834 | 1,672,625 | Shares | Sole | 2023-08-09 | |
| 2023-03-31 | $88,256,391 | 1,680,434 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $85,949,779 | 1,685,951 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $67,295,934 | 1,664,505 | Shares | Sole | 2022-11-10 | |
| 2022-06-30 | $76,445,175 | 1,672,761 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $106,329,983 | 1,753,752 | Shares | Defined | 2022-05-13 | |
| 2021-12-31 | $131,767,790 | 1,711,937 | Shares | Defined | 2022-02-09 | |
| 2021-09-30 | $87,784,006 | 1,709,523 | Shares | Defined | 2021-11-12 | |
| 2021-06-30 | $97,331,109 | 1,710,865 | Shares | Defined | 2021-08-12 | |
| 2021-03-31 | $94,610,496 | 1,728,993 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $89,897,480 | 1,700,993 | Shares | Defined | 2021-03-08 | |
| 2020-09-30 | $65,501,518 | 1,650,328 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $89,055,071 | 1,644,296 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $66,128,948 | 1,661,114 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||