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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 %
AM
551
Atreides Management
Massachusetts
– -$6.36M -74,952 Closed
EGI
552
EAM Global Investors
California
– -$4.99M -58,874 Closed
MAM
553
Melqart Asset Management
United Kingdom
– -$4.23M -49,828 Closed
GJL
554
Gendell Jeffrey L
– -$4.16M -49,096 Closed
HVCM
555
Hel Ved Capital Management
Hong Kong
– -$4.08M -48,100 Closed
CCM
556
Channing Capital Management
Illinois
– -$3.96M -46,650 Closed
TCM
557
Teza Capital Management
Illinois
– -$2.98M -35,133 Closed
SCP
558
Seizert Capital Partners
Michigan
– -$2.84M -33,431 Closed
GCM
559
Gladstone Capital Management
United Kingdom
– -$2.3M -27,100 Closed
Simplex Trading
560
Simplex Trading
Illinois
– -$2.17M -25,600 Closed
SM
561
Sciencast Management
New Jersey
– -$2.15M -25,336 Closed
PCP
562
Proficio Capital Partners
Massachusetts
– -$1.82M -21,434 Closed
Susquehanna International Group
563
Susquehanna International Group
Pennsylvania
– -$1.81M -21,303 Closed
WBC
564
Westpac Banking Corp
Australia
– -$1.8M -21,191 Closed
MIC
565
Maxi Investments CY
Cyprus
– -$1.61M -18,920 Closed
FCM
566
Fieldview Capital Management
Michigan
– -$1.44M -17,004 Closed
TAF
567
Tredje AP-fonden
Sweden
– -$1.27M -15,000 Closed
Wolverine Trading
568
Wolverine Trading
Illinois
– -$1.24M -14,547 Closed
CP
569
CenterBook Partners
Connecticut
– -$1.18M -13,896 Closed
FHB
570
First Hawaiian Bank
Hawaii
– -$1.04M -12,280 Closed
BPC
571
Bryce Point Capital
New York
– -$911K -10,736 Closed
MLM
572
Mount Lucas Management
Pennsylvania
– -$763K -9,000 Closed
EDRH
573
Edmond de Rothschild Holding
Switzerland
– -$752K -8,871 Closed
MCP
574
Militia Capital Partners
Nevada
– -$699K -8,237 Closed
SPA
575
Sherbrooke Park Advisers
New York
– -$616K -7,264 Closed
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