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Ribbon Communications

150 hedge funds and large institutions have $369M invested in Ribbon Communications in 2025 Q4 according to their latest regulatory filings, with 24 funds opening new positions, 56 increasing their positions, 50 reducing their positions, and 24 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
150
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$738K
Puts
Net Calls
Net Calls Change

Top Buyers

1 +$2.34M
2 +$2.29M
3 +$1.35M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$1.26M
5
Goldman Sachs
Goldman Sachs
New York
+$1.17M
Name Holding Trade Value Shares
Change
Change in
Stake
XT
51
XTX Topco
Cayman Islands
$296K
Legal & General Group
52
Legal & General Group
United Kingdom
$272K
DTL
53
Dynamic Technology Lab
Singapore
$262K
California State Teachers Retirement System (CalSTRS)
54
California State Teachers Retirement System (CalSTRS)
California
$255K
Russell Investments Group
55
Russell Investments Group
United Kingdom
$252K
Deutsche Bank
56
Deutsche Bank
Germany
$247K
B
57
Bailard
California
$215K
Franklin Resources
58
Franklin Resources
California
$205K
T. Rowe Price Associates
59
T. Rowe Price Associates
Maryland
$202K
TC
60
Trilogy Capital
California
$188K
Ohio Public Employees Retirement System (OPERS)
61
Ohio Public Employees Retirement System (OPERS)
Ohio
$175K
OAM
62
Oxford Asset Management
United Kingdom
$160K
EGM
63
Engineers Gate Manager
New York
$160K
SFI
64
Susquehanna Fundamental Investments
Pennsylvania
$157K
Millennium Management
65
Millennium Management
New York
$156K
Citadel Advisors
66
Citadel Advisors
Florida
$155K
Los Angeles Capital Management
67
Los Angeles Capital Management
California
$142K
Zurich Cantonal Bank
68
Zurich Cantonal Bank
Switzerland
$136K
Qube Research & Technologies (QRT)
69
Qube Research & Technologies (QRT)
United Kingdom
$127K
Mirae Asset Global ETFs Holdings
70
Mirae Asset Global ETFs Holdings
Hong Kong
$126K
SG Americas Securities
71
SG Americas Securities
New York
$120K
PCM
72
Prelude Capital Management
New York
$117K
BNP Paribas Asset Management
73
BNP Paribas Asset Management
France
$117K
Verition Fund Management
74
Verition Fund Management
Connecticut
$117K
Assenagon Asset Management
75
Assenagon Asset Management
Luxembourg
$116K