678 hedge funds and large institutions have $20.3B invested in Ciena in 2025 Q3 according to their latest regulatory filings, with 180 funds opening new positions, 175 increasing their positions, 255 reducing their positions, and 47 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

21% more funds holding

Funds holding: 560678 (+118)

1.13% less ownership

Funds ownership: 99.76%98.63% (-1.1%)

31% less repeat investments, than reductions

Existing positions increased: 175 | Existing positions reduced: 255

Holders
678
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
16
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$419M
Puts
$220M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Manulife (Manufacturers Life Insurance)
126
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$14.2M
Stifel Financial
127
Stifel Financial
Missouri
$14.1M
State of Wisconsin Investment Board
128
State of Wisconsin Investment Board
Wisconsin
$13.9M
Bank Julius Baer & Co
129
Bank Julius Baer & Co
Switzerland
$13.4M
PCM
130
Portolan Capital Management
Massachusetts
$12.9M
QCM
131
Quantinno Capital Management
New York
$12.5M
Select Equity Group
132
Select Equity Group
New York
$12.2M
HVIA
133
Hudson Valley Investment Advisors
New York
$11.7M
ACM
134
Atika Capital Management
New York
$11.7M
Cerity Partners
135
Cerity Partners
New York
$11.4M
Two Sigma Advisers
136
Two Sigma Advisers
New York
$11.3M
MIM
137
MetLife Investment Management
New Jersey
$10.6M
IIM
138
INTECH Investment Management
Florida
$10.4M
SAM
139
Silvercrest Asset Management
New York
$10.3M
VOYA Investment Management
140
VOYA Investment Management
Georgia
$10.1M
TAM
141
Talos Asset Management
New York
$10.1M
KCM
142
Kornitzer Capital Management
Kansas
$10M
D.E. Shaw & Co
143
D.E. Shaw & Co
New York
$10M
Canada Pension Plan Investment Board
144
Canada Pension Plan Investment Board
Ontario, Canada
$9.99M
First Eagle Investment Management
145
First Eagle Investment Management
New York
$9.82M
OAM
146
Oppenheimer Asset Management
New York
$9.79M
MOACM
147
Mutual of America Capital Management
New York
$9.51M
AB
148
Amalgamated Bank
New York
$9.49M
Calamos Advisors
149
Calamos Advisors
Illinois
$9.33M
Verition Fund Management
150
Verition Fund Management
Connecticut
$9.28M