📊 Score Breakdown
Offering Ability
20
Cash Runway
0
Float Risk
2
Warrant Exposure
15
Convertible Debt—
🌦️ Dilution Forecast
☀️
Clear
No significant dilution signals
0%
No significant dilution signals detected for CIEN.
💹 Market Data
Market Cap$80.62B
Shares Outstanding141.40M
Float140.73M
Cash$1.30B
Debt$1.59B
Short InterestN/A
🏛 Institutional Holdings
QoQ: ↑ 3.4% shares (2025Q4 vs prior)
842 institutional holders · 159.53M shares
#1
FMR LLC
21.13M shares
#2
BlackRock, Inc.
16.67M shares
#3
VANGUARD GROUP INC
14.38M shares
+ 17 more holders Sign up free to view →
📉 Short Interest
Short Interest4.37M
Days to Cover2.0
% of Float3.1%
FINRA data as of Apr 30, 2026
📁 Recent SEC Activity
xbrl
XBRL CONVERTIBLE
Jul 30, 2022
4
INSIDER TRANSACTION
Mar 04, 2026
4
INSIDER TRANSACTION
Feb 19, 2026
4
INSIDER TRANSACTION
Feb 19, 2026
4
INSIDER TRANSACTION
Jan 20, 2026
Full SEC filing analysis available with free account →
📰 Recent News
No recent news
🔬 More Research for CIEN
📊 CIEN FDA Catalyst Timeline & Biotech Grade — BiotechSigns
📡 CIEN Signal Convergence & Dark Pool Activity — StonkWhisper
Part of the Guerilla Finance research network. Cross-reference multiple data sources for better due diligence.