WhaleWave
Ownership research
Company ownership
CIEN · SEC CIK 0000936395
Broad multi-source activity
Analysis window: last 120 days.
3 of 4 source families recorded activity between Jun 24, 2026 and Oct 15, 2026.
Activity
3 of 4
Filing types detected
Recent events
41
Jun 24 – Oct 15
Insider purchases
$0
Latest reported changes across tracked funds.
Fund
Report date
Current position
Change
Reduced
No reported events
Confirmed sales
$10.5M
18 matched events
Jun 30, 2026
101,038
-29.76%