Ciena Corporation shares owned by William Blair Investment Management
Quarter-by-quarter ownership of Ciena Corporation (CIEN) shares owned by William Blair Investment Management
from 13F filings
Historical chart of William Blair Investment Management investment in Ciena Corporation
Tip: Access up to 7 years of quarterly data
All positions including Ciena Corporation held by William Blair Investment Management consolidated in one spreadsheet with up to 7 years of data
Download as csv
Download as Excel
Quarterly reported holdings in Ciena Corporation by William Blair Investment Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $356M | 2.4M | 145.67 |
| 2025-06-30 | $220M | 2.7M | 81.33 |
| 2025-03-31 | $121M | 2.0M | 60.43 |
| 2019-03-31 | $18M | 473k | 37.34 |
| 2018-12-31 | $18M | 521k | 33.91 |
| 2018-09-30 | $16M | 513k | 31.24 |
| 2018-06-30 | $15M | 554k | 26.51 |
More positions owned by William Blair Investment Management
View all positions for William Blair Investment Management