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
SLAM
226
Swiss Life Asset Management
$6.89M
PAS
227
Park Avenue Securities
New York
$6.87M
FAF
228
Fjarde Ap-fonden
Sweden
$6.85M
NMERB
229
New Mexico Educational Retirement Board
New Mexico
$6.83M
FLPIM
230
F.L. Putnam Investment Management
Massachusetts
$6.78M
OHIS
231
Oak Harvest Investment Services
Texas
$6.73M
Mercer Global Advisors
232
Mercer Global Advisors
Colorado
$6.69M
OPERF
233
Oregon Public Employees Retirement Fund
Oregon
$6.6M
DnB Asset Management
234
DnB Asset Management
Norway
$6.44M
Bank Julius Baer & Co
235
Bank Julius Baer & Co
Switzerland
$6.42M
RBI
236
Raiffeisen Bank International
Austria
$6.34M
FBFS
237
First Business Financial Services
Wisconsin
$6.25M
AIIMS
238
Analyst IMS Investment Management Services
Israel
$6.2M
Canada Pension Plan Investment Board
239
Canada Pension Plan Investment Board
Ontario, Canada
$6.2M
BAMF
240
BI Asset Management Fondsmaeglerselskab
Denmark
$6.17M
TCA
241
Tortoise Capital Advisors
Kansas
$6.08M
PCM
242
Prelude Capital Management
New York
$6.07M
AIP
243
Ameritas Investment Partners
Nebraska
$6.05M
BCI
244
Brinker Capital Investments
Pennsylvania
$5.89M
BCIM
245
British Columbia Investment Management
British Columbia, Canada
$5.85M
Corient Private Wealth
246
Corient Private Wealth
Florida
$5.68M
DCM
247
Dilation Capital Management
New York
$5.66M
EWA
248
EverSource Wealth Advisors
Alabama
$5.64M
IRP
249
Investment Research Partners
Pennsylvania
$5.49M
URS
250
Utah Retirement Systems
Utah
$5.44M