Ciena Corporation shares owned by Portfolio 21 Investments
Quarter-by-quarter ownership of Ciena Corporation (CIEN) shares owned by Portfolio 21 Investments
from 13F filings
Historical chart of Portfolio 21 Investments investment in Ciena Corporation
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Quarterly reported holdings in Ciena Corporation by Portfolio 21 Investments
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-03-31 | $1.8M | 4.7k | 388.23 |