Institutional investors holding CIEN
| Investor | Weight | Quarter |
|---|---|---|
| Stephen Mandel | 2.51% | 2026Q1 |
| Viking Global Investors | 0.69% | 2003Q2 |
| Chuck Akre | 0.45% | 2000Q4 |
| Mairs & Power | 0.01% | 2026Q1 |
| First Eagle Investment Management | 0.00% | 2026Q1 |
| Kenneth Fisher | 0.00% | 2026Q1 |
| Dodge & Cox | 0.00% | 2014Q3 |
| Francois Rochon | 0.00% | 2024Q1 |
Congressional data coming soon
31
Total trades
$24.3M
Volume
0
Buys
31
Sells
Last trade: Jun 1, 2026
No insider trades in the last 90 days.
Congressional trade data is being sourced and will appear here shortly.