Sep 3, 2026
13GJPMORGAN CHASE & CO.
Common Stock, par value $0.01 per share
Decrease
3.9% ownership
5,616,378 shares
-3.8 percentage points
Current position
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
Reported Schedule 13D and 13G ownership events.
Sep 3, 2026
13GJPMORGAN CHASE & CO.
Common Stock, par value $0.01 per share
3.9% ownership
5,616,378 shares
-3.8 percentage points
Current position
Aug 6, 2026
13GFMR LLC
COMMON STOCK
13.5% ownership
19,113,537.72 shares
Current position
No reported events
Confirmed sales
$10.5M
18 matched events
Apr 29, 2026
Vanguard Capital Management
Common Stock
7.47% ownership
10,568,831 shares
Current position