Ciena Corporation shares owned by Dimensional Fund Advisors
Quarter-by-quarter ownership of Ciena Corporation (CIEN) shares owned by Dimensional Fund Advisors
from 13F filings
Historical chart of Dimensional Fund Advisors investment in Ciena Corporation
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Quarterly reported holdings in Ciena Corporation by Dimensional Fund Advisors
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $291M | 2.0M | 145.67 |
| 2025-06-30 | $185M | 2.3M | 81.33 |
| 2025-03-31 | $144M | 2.4M | 60.43 |
| 2024-12-31 | $221M | 2.6M | 84.81 |
| 2024-09-30 | $163M | 2.6M | 61.59 |
| 2024-06-30 | $130M | 2.7M | 48.18 |
| 2024-03-31 | $108M | 2.2M | 49.45 |
| 2023-12-31 | $97M | 2.2M | 45.01 |
| 2023-09-30 | $87M | 1.8M | 47.26 |
| 2023-06-30 | $71M | 1.7M | 42.49 |
| 2023-03-31 | $88M | 1.7M | 52.52 |
| 2022-12-31 | $86M | 1.7M | 50.98 |
| 2022-09-30 | $67M | 1.7M | 40.43 |
| 2022-06-30 | $76M | 1.7M | 45.70 |
| 2022-03-31 | $106M | 1.8M | 60.63 |
| 2021-12-31 | $132M | 1.7M | 76.97 |
| 2021-09-30 | $88M | 1.7M | 51.35 |
| 2021-06-30 | $97M | 1.7M | 56.89 |
| 2021-03-31 | $95M | 1.7M | 54.72 |
| 2020-12-31 | $90M | 1.7M | 52.85 |
| 2020-09-30 | $66M | 1.7M | 39.69 |
| 2020-06-30 | $89M | 1.6M | 54.15 |
| 2020-03-31 | $66M | 1.7M | 39.82 |
| 2019-12-31 | $69M | 1.6M | 42.69 |
| 2019-09-30 | $63M | 1.6M | 39.23 |
| 2019-06-30 | $79M | 1.9M | 41.13 |
| 2019-03-31 | $112M | 3.0M | 37.34 |
| 2018-12-31 | $108M | 3.2M | 33.91 |
| 2018-09-30 | $123M | 3.9M | 31.24 |
| 2018-06-30 | $123M | 4.6M | 26.51 |
| 2018-03-31 | $114M | 4.4M | 25.90 |
| 2017-12-31 | $71M | 3.4M | 20.93 |
| 2017-09-30 | $62M | 2.8M | 21.97 |
| 2017-06-30 | $71M | 2.8M | 25.02 |
| 2017-03-31 | $66M | 2.8M | 23.61 |
| 2016-12-31 | $72M | 2.9M | 24.41 |
| 2016-09-30 | $60M | 2.8M | 21.80 |
| 2016-06-30 | $46M | 2.5M | 18.75 |
| 2016-03-31 | $50M | 2.6M | 19.02 |
| 2015-12-31 | $50M | 2.4M | 20.69 |
| 2015-09-30 | $46M | 2.2M | 20.72 |
| 2015-03-31 | $32M | 1.7M | 19.31 |
| 2014-12-31 | $15M | 757k | 19.41 |
| 2014-09-30 | $27M | 1.6M | 16.72 |
| 2014-06-30 | $34M | 1.6M | 21.66 |
| 2014-03-31 | $33M | 1.5M | 22.74 |
| 2013-12-31 | $28M | 1.2M | 23.93 |
| 2013-09-30 | $12M | 459k | 24.98 |
| 2013-06-30 | $31k | 1.6k | 19.38 |