834 hedge funds and large institutions have $32.1B invested in Ciena in 2025 Q4 according to their latest regulatory filings, with 241 funds opening new positions, 248 increasing their positions, 274 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:

9.15% more ownership

Funds ownership: 98.65%107.8% (+9.1%)

9% less call options, than puts

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

9% less repeat investments, than reductions

Existing positions increased: 248 | Existing positions reduced: 274

Holders
834
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
Comerica Bank
201
Comerica Bank
Texas
$8.88M
Pacer Advisors
202
Pacer Advisors
Pennsylvania
$8.7M
DB
203
Danske Bank
Denmark
$8.58M
ACB
204
Aristotle Capital Boston
Massachusetts
$8.56M
MLCM
205
M & L Capital Management
United Kingdom
$8.48M
GGHC
206
Gilder Gagnon Howe & Co
New York
$8.43M
Bank of Montreal
207
Bank of Montreal
Ontario, Canada
$8.39M
COPPSERS
208
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$8.26M
Thrivent Financial for Lutherans
209
Thrivent Financial for Lutherans
Minnesota
$8.06M
SOMRS
210
State of Michigan Retirement System
Michigan
$7.79M
Renaissance Technologies
211
Renaissance Technologies
New York
$7.62M
Mirae Asset Global Investments
212
Mirae Asset Global Investments
South Korea
$7.57M
IC
213
IEQ Capital
California
$7.5M
MCM
214
Maytus Capital Management
New York
$7.48M
Cetera Investment Advisers
215
Cetera Investment Advisers
Illinois
$7.48M
Westfield Capital Management
216
Westfield Capital Management
Massachusetts
$7.43M
NMIMC
217
Northwestern Mutual Investment Management Company
Wisconsin
$7.38M
Impax Asset Management Group
218
Impax Asset Management Group
United Kingdom
$7.31M
KBC Group
219
KBC Group
Belgium
$7.29M
IGAM
220
iA Global Asset Management
Quebec, Canada
$7.16M
II
221
IFM Investors
Australia
$7.08M
Man Group
222
Man Group
United Kingdom
$7.04M
JCM
223
JAT Capital Management
Connecticut
$7.02M
AI
224
Atria Investments
North Carolina
$6.99M
VCM
225
Voleon Capital Management
California
$6.94M