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853 hedge funds and large institutions have $32.2B invested in Ciena in 2025 Q4 according to their latest regulatory filings, with 258 funds opening new positions, 249 increasing their positions, 274 reducing their positions, and 82 closing their positions.

New
Increased
Maintained
Reduced
Closed

215% more first-time investments, than exits

New positions opened: 258 | Existing positions closed: 82

59% more capital invested

Capital invested by funds: $20.3B → $32.2B (+$11.9B)

44% more funds holding in top 10

Funds holding in top 10: 1623 (+7)

24% more funds holding

Funds holding: 688853 (+165)

9.27% more ownership

Funds ownership: 98.65%107.93% (+9.3%)

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: 249 | Existing positions reduced: 274

Holders
853
Holders Change
+165
Holders Change %
+23.98%
% of All Funds
10.38%
Holding in Top 10
23
Holding in Top 10 Change
+7
Holding in Top 10 Change %
+43.75%
% of All Funds
0.28%
New
258
Increased
249
Reduced
274
Closed
82
Calls
$572M
Puts
$627M
Net Calls
-$55.1M
Net Calls Change
-$254M
Name Holding Trade Value Shares
Change
Change in
Stake
Millennium Management
51
Millennium Management
New York
$98.8M -$15.8M -81,267 -16%
Neuberger Berman Group
52
Neuberger Berman Group
New York
$90.6M -$110M -565,036 -59%
Swiss National Bank
53
Swiss National Bank
Switzerland
$90.4M +$21.8M +112,432 +41%
RhumbLine Advisers
54
RhumbLine Advisers
Massachusetts
$89.7M +$2.14M +11,046 +3%
ZIG
55
Zurich Insurance Group
Switzerland
$86.4M +$64.7M +333,351 +929%
AllianceBernstein
56
AllianceBernstein
Tennessee
$83.6M +$20.1M +103,503 +41%
Raymond James Financial
57
Raymond James Financial
Florida
$83.5M +$3.24M +16,717 +5%
SCM
58
Steadfast Capital Management
New York
$72.1M +$59.8M +308,200 New
SIMG
59
Stephens Investment Management Group
Texas
$71.7M -$45.6M -234,992 -43%
MP
60
Munro Partners
Australia
$71.2M -$49M -252,500 -45%
Principal Financial Group
61
Principal Financial Group
Iowa
$70.9M -$2.07M -10,647 -3%
Sumitomo Mitsui Trust Group
62
Sumitomo Mitsui Trust Group
Japan
$68M +$52.3M +269,644 +1,279%
Wells Fargo
63
Wells Fargo
California
$67.8M +$20.7M +106,467 +58%
Royal Bank of Canada
64
Royal Bank of Canada
Ontario, Canada
$67.4M +$4.68M +24,139 +9%
SM
65
Senvest Management
New York
$66.8M -$113M -581,839 -67%
Acadian Asset Management
66
Acadian Asset Management
Massachusetts
$66.2M +$9.6M +49,484 +21%
LP
67
LMR Partners
United Kingdom
$63.6M +$32.1M +165,500 +155%
Ameriprise
68
Ameriprise
Minnesota
$63.1M +$6.8M +35,029 +15%
Envestnet Asset Management
69
Envestnet Asset Management
Illinois
$60.9M -$11.1M -57,115 -18%
FIA
70
Foundations Investment Advisors
Arizona
$60.4M +$2.22M +11,437 +5%
American Century Companies
71
American Century Companies
Missouri
$59.1M -$64.6M -332,996 -57%
Citigroup
72
Citigroup
New York
$58.8M -$966K -4,980 -2%
SEI Investments
73
SEI Investments
Pennsylvania
$58.3M -$11.8M -60,582 -20%
NGM
74
North Growth Management
British Columbia, Canada
$57.7M -$15.1M -78,000 -24%
California Public Employees Retirement System
75
California Public Employees Retirement System
California
$56.4M -$2.35M -12,101 -5%