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Ciena
CIEN

Overview Fund Activity

542 hedge funds and large institutions have $8.25B invested in Ciena in 2025 Q1 according to their latest regulatory filings, with 101 funds opening new positions, 184 increasing their positions, 184 reducing their positions, and 80 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
542
Holders Change
+11
Holders Change %
+2.07%
% of All Funds
7.36%
Holding in Top 10
6
Holding in Top 10 Change
-5
Holding in Top 10 Change %
-45.45%
% of All Funds
0.08%
New
101
Increased
184
Reduced
184
Closed
80
Calls
$184M
Puts
$149M
Net Calls
+$35.2M
Net Calls Change
-$20.2M

Top Buyers

1
William Blair Investment Management
William Blair Investment Management
Illinois
$121M
2
Capital World Investors
Capital World Investors
California
$112M
3
Point72 Asset Management
Point72 Asset Management
Connecticut
$120M
4
WP
Woodline Partners
California
$49.2M
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
$51.4M

Top Sellers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$70.7M
2
SPC
Slate Path Capital
New York
$0
3
Fidelity International
Fidelity International
Bermuda
$0
4
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss
Texas
$229M
5
PCH
Polar Capital Holdings
United Kingdom
$74.6M
Name Holding Trade Value Shares
Change 		Shares
Change %
TA
126
Tectonic Advisors
Texas
$5.53M +$1.07M +17,709 +24%
TC
127
TwinBeech Capital
New York
$5.45M +$5.45M +90,170 New
PCA
128
Providence Capital Advisors
North Carolina
$5.12M +$97K +1,605 +2%
New York State Common Retirement Fund
129
New York State Common Retirement Fund
New York
$4.88M -$8.35M -138,194 -63%
MIM
130
MetLife Investment Management
New Jersey
$4.77M -$151K -2,501 -3%
MOACM
131
Mutual of America Capital Management
New York
$4.62M -$1.82M -30,113 -28%
XT
132
XTX Topco
Cayman Islands
$4.55M +$3.23M +53,488 +245%
LP
133
LMR Partners
United Kingdom
$4.53M +$1.51M +25,000 +50%
VOYA Investment Management
134
VOYA Investment Management
Georgia
$4.37M +$2.35M +38,942 +117%
Select Equity Group
135
Select Equity Group
New York
$4.35M +$4.35M +71,942 New
GIM
136
Granahan Investment Management
Massachusetts
$4.34M +$1.47M +24,325 +51%
YIH
137
Y-Intercept (HK)
Hong Kong
$4.31M +$4.31M +71,243 New
ACM
138
Aquatic Capital Management
Illinois
$4.25M +$4.25M +70,353 New
ACA
139
Apis Capital Advisors
New York
$4.17M +$4.17M +69,000 New
KCM
140
Kornitzer Capital Management
Kansas
$4.16M – – –
ACB
141
Aristotle Capital Boston
Massachusetts
$4.13M -$2.07M -34,176 -33%
SAM
142
Silvercrest Asset Management
New York
$4.07M -$748K -12,372 -16%
AB
143
Amalgamated Bank
New York
$3.94M -$222K -3,681 -5%
Treasurer of the State of North Carolina
144
Treasurer of the State of North Carolina
North Carolina
$3.91M +$87K +1,440 +2%
HF
145
HRT Financial
New York
$3.81M +$295K +4,885 +8%
Squarepoint
146
Squarepoint
New York
$3.77M -$433K -7,167 -10%
CAU
147
Caxton Associates (UK)
$3.77M +$3.77M +62,342 New
Cerity Partners
148
Cerity Partners
New York
$3.71M +$755K +12,494 +26%
Acadian Asset Management
149
Acadian Asset Management
Massachusetts
$3.71M +$3.71M +61,344 New
MF
150
Magnetar Financial
Illinois
$3.62M +$3.62M +59,933 New
4 5
6
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