Ciena Corporation shares owned by Sei Investments
Quarter-by-quarter ownership of Ciena Corporation (CIEN) shares owned by Sei Investments
from 13F filings
Historical chart of Sei Investments investment in Ciena Corporation
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Quarterly reported holdings in Ciena Corporation by Sei Investments
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $45M | 310k | 145.67 |
| 2025-06-30 | $17M | 211k | 81.34 |
| 2025-03-31 | $15M | 249k | 60.43 |
| 2024-12-31 | $13M | 157k | 84.81 |
| 2024-09-30 | $11M | 181k | 61.59 |
| 2024-03-31 | $8.3M | 168k | 49.45 |
| 2023-09-30 | $9.2M | 195k | 47.26 |
| 2023-06-30 | $9.4M | 222k | 42.48 |
| 2023-03-31 | $13M | 244k | 52.54 |
| 2022-12-31 | $11M | 208k | 50.97 |
| 2022-09-30 | $7.8M | 194k | 40.44 |
| 2022-06-30 | $8.6M | 185k | 46.51 |
| 2022-03-31 | $10M | 172k | 60.31 |
| 2021-12-31 | $13M | 166k | 76.99 |
| 2021-09-30 | $8.2M | 159k | 51.13 |
| 2021-06-30 | $9.1M | 160k | 56.92 |
| 2021-03-31 | $8.8M | 166k | 52.85 |
| 2020-12-31 | $7.4M | 140k | 52.85 |
| 2020-09-30 | $5.9M | 149k | 39.68 |
| 2020-06-30 | $15M | 277k | 54.13 |
| 2020-03-31 | $9.5M | 238k | 39.81 |
| 2019-12-31 | $10M | 223k | 45.00 |
| 2019-09-30 | $11M | 270k | 39.24 |
| 2019-06-30 | $12M | 294k | 41.14 |
| 2019-03-31 | $13M | 356k | 37.46 |
| 2018-12-31 | $11M | 364k | 31.24 |
| 2018-09-30 | $11M | 351k | 31.22 |
| 2018-06-30 | $9.0M | 339k | 26.60 |
| 2018-03-31 | $7.8M | 299k | 25.91 |
| 2017-12-31 | $5.2M | 247k | 20.93 |
| 2017-09-30 | $8.9M | 407k | 21.96 |
| 2017-06-30 | $11M | 407k | 25.88 |
| 2017-03-31 | $7.5M | 323k | 23.26 |
| 2016-12-31 | $7.5M | 306k | 24.42 |
| 2016-09-30 | $6.1M | 276k | 22.17 |
| 2016-06-30 | $2.8M | 148k | 18.75 |
| 2016-03-31 | $3.4M | 178k | 18.99 |
| 2015-12-31 | $3.7M | 176k | 20.85 |
| 2015-09-30 | $949k | 46k | 20.74 |
| 2015-06-30 | $722k | 31k | 23.61 |
| 2015-03-31 | $61k | 3.4k | 18.19 |
| 2014-12-31 | $9.6k | 551 | 17.41 |