831 hedge funds and large institutions have $32.1B invested in Ciena in 2025 Q4 according to their latest regulatory filings, with 239 funds opening new positions, 246 increasing their positions, 275 reducing their positions, and 81 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding in top 10

Funds holding in top 10:

more funds holding

Funds holding:

9.08% more ownership

Funds ownership: 98.67%107.76% (+9.1%)

9% less call options, than puts

Call options by funds: $572M | Put options by funds: $627M

11% less repeat investments, than reductions

Existing positions increased: 246 | Existing positions reduced: 275

Holders
831
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
21
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$572M
Puts
$627M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Pacer Advisors
201
Pacer Advisors
Pennsylvania
$8.7M
DB
202
Danske Bank
Denmark
$8.58M
ACB
203
Aristotle Capital Boston
Massachusetts
$8.56M
MLCM
204
M & L Capital Management
United Kingdom
$8.48M
GGHC
205
Gilder Gagnon Howe & Co
New York
$8.43M
Bank of Montreal
206
Bank of Montreal
Ontario, Canada
$8.39M
COPPSERS
207
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$8.26M
Thrivent Financial for Lutherans
208
Thrivent Financial for Lutherans
Minnesota
$8.06M
SOMRS
209
State of Michigan Retirement System
Michigan
$7.79M
Renaissance Technologies
210
Renaissance Technologies
New York
$7.62M
Mirae Asset Global Investments
211
Mirae Asset Global Investments
South Korea
$7.57M
IC
212
IEQ Capital
California
$7.5M
MCM
213
Maytus Capital Management
New York
$7.48M
Cetera Investment Advisers
214
Cetera Investment Advisers
Illinois
$7.48M
Westfield Capital Management
215
Westfield Capital Management
Massachusetts
$7.43M
NMIMC
216
Northwestern Mutual Investment Management Company
Wisconsin
$7.38M
Impax Asset Management Group
217
Impax Asset Management Group
United Kingdom
$7.31M
KBC Group
218
KBC Group
Belgium
$7.29M
IGAM
219
iA Global Asset Management
Quebec, Canada
$7.16M
II
220
IFM Investors
Australia
$7.08M
Man Group
221
Man Group
United Kingdom
$7.04M
JCM
222
JAT Capital Management
Connecticut
$7.02M
AI
223
Atria Investments
North Carolina
$6.99M
VCM
224
Voleon Capital Management
California
$6.94M
SLAM
225
Swiss Life Asset Management
$6.89M