Ciena Corporation shares owned by Renaissance Technologies
Quarter-by-quarter ownership of Ciena Corporation (CIEN) shares owned by Renaissance Technologies
from 13F filings
Historical chart of Renaissance Technologies investment in Ciena Corporation
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Quarterly reported holdings in Ciena Corporation by Renaissance Technologies
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-03-31 | $19M | 309k | 60.43 |
| 2023-12-31 | $6.1M | 135k | 45.01 |
| 2022-03-31 | $2.3M | 38k | 60.62 |
| 2021-12-31 | $16M | 211k | 76.97 |
| 2020-03-31 | $11M | 284k | 39.81 |
| 2019-12-31 | $51M | 1.2M | 42.69 |
| 2019-09-30 | $31M | 799k | 39.23 |
| 2019-06-30 | $16M | 390k | 41.13 |
| 2019-03-31 | $60M | 1.6M | 37.34 |
| 2018-12-31 | $9.5M | 280k | 33.91 |
| 2018-09-30 | $39M | 1.2M | 31.24 |
| 2018-06-30 | $5.5M | 208k | 26.51 |
| 2018-03-31 | $38M | 1.5M | 25.90 |
| 2017-12-31 | $40M | 1.9M | 20.93 |
| 2017-06-30 | $17M | 689k | 25.02 |
| 2017-03-31 | $60M | 2.5M | 23.61 |
| 2016-12-31 | $98M | 4.0M | 24.41 |
| 2016-09-30 | $41M | 1.9M | 21.80 |
| 2016-06-30 | $35M | 1.9M | 18.75 |
| 2016-03-31 | $37M | 1.9M | 19.02 |
| 2015-12-31 | $41M | 2.0M | 20.69 |
| 2015-09-30 | $4.7M | 227k | 20.72 |
| 2015-03-31 | $931k | 48k | 19.32 |
| 2014-12-31 | $340k | 18k | 19.42 |
| 2013-09-30 | $42M | 1.7M | 25.01 |
| 2013-06-30 | $22M | 1.1M | 19.43 |
| 2012-03-31 | $4.2M | 257k | 16.19 |
| 2011-12-31 | $11M | 880k | 12.10 |
| 2010-12-31 | $13M | 594k | 21.05 |