CIEN (CIENA CORP) historical data
STOCKListed
| Symbol | CIEN |
|---|---|
| Name | CIENA CORP |
| History | 2000-01-04 to 2026-10-07 (about 26 years) |
| Bar sizes | Daily, hourly, 5-minute and 1-minute |
| Adjustments | Unadjusted, split-adjusted or split-and-dividend-adjusted, chosen on read |
| Survivorship | Included in the survivorship-free universe |
| Free tier | Last 12 months of daily bars |
Institutional ownership (13F, 2026Q2)
| Managers holding | 1,223 |
|---|---|
| Shares held | 132,290,983 ($64.6bn reported value) |
| Quarter flows | 261 new, 471 added, 382 trimmed, 121 exited; -2,019,816 shares vs the prior quarter |
From SEC Form 13F filings. Every holder, line by line, and the full history since 2013: yf.Client().holders("CIEN") on the look-back bundles. Top holders of CIEN · All 13F managers
Get it in Python
import finzdata as yf
df = yf.Ticker("CIEN").history(start="2000-01-04", interval="1d")
df.tail()