840 hedge funds and large institutions have $32.1B invested in Ciena in 2025 Q4 according to their latest regulatory filings, with 247 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:

9.2% more ownership

Funds ownership: 98.65%107.85% (+9.2%)

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
840
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
23
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
ASRS
201
Arizona State Retirement System
Arizona
$9.06M
Comerica Bank
202
Comerica Bank
Texas
$8.88M
Pacer Advisors
203
Pacer Advisors
Pennsylvania
$8.7M
DB
204
Danske Bank
Denmark
$8.58M
ACB
205
Aristotle Capital Boston
Massachusetts
$8.56M
MLCM
206
M & L Capital Management
United Kingdom
$8.48M
GGHC
207
Gilder Gagnon Howe & Co
New York
$8.43M
Bank of Montreal
208
Bank of Montreal
Ontario, Canada
$8.39M
COPPSERS
209
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$8.26M
Thrivent Financial for Lutherans
210
Thrivent Financial for Lutherans
Minnesota
$8.06M
SOMRS
211
State of Michigan Retirement System
Michigan
$7.79M
Renaissance Technologies
212
Renaissance Technologies
New York
$7.62M
Mirae Asset Global Investments
213
Mirae Asset Global Investments
South Korea
$7.57M
IC
214
IEQ Capital
California
$7.5M
MCM
215
Maytus Capital Management
New York
$7.48M
Cetera Investment Advisers
216
Cetera Investment Advisers
Illinois
$7.48M
Westfield Capital Management
217
Westfield Capital Management
Massachusetts
$7.43M
NMIMC
218
Northwestern Mutual Investment Management Company
Wisconsin
$7.38M
Impax Asset Management Group
219
Impax Asset Management Group
United Kingdom
$7.31M
KBC Group
220
KBC Group
Belgium
$7.29M
IGAM
221
iA Global Asset Management
Quebec, Canada
$7.16M
II
222
IFM Investors
Australia
$7.08M
Man Group
223
Man Group
United Kingdom
$7.04M
JCM
224
JAT Capital Management
Connecticut
$7.02M
AI
225
Atria Investments
North Carolina
$6.99M