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Ribbon Communications

Name Holding Trade Value Shares
Change
Change in
Stake
California Public Employees Retirement System
126
California Public Employees Retirement System
California
– -$1.15M -139,800 Closed
E
127
Ergoteles
New York
– -$1.03M -125,100 Closed
Assenagon Asset Management
128
Assenagon Asset Management
Luxembourg
– -$879K -107,083 Closed
Oberweis Asset Management
129
Oberweis Asset Management
Illinois
– -$832K -101,400 Closed
MSL
130
Mackay Shields LLC
New York
– -$580K -70,600 Closed
Engineers Gate Manager
131
Engineers Gate Manager
New York
– -$533K -64,923 Closed
Simplex Trading
132
Simplex Trading
Illinois
– -$405K -52,940 Closed
Cubist Systematic Strategies
133
Cubist Systematic Strategies
Connecticut
– -$314K -38,287 Closed
UBS Group
134
UBS Group
Switzerland
– -$253K -33,055 -100%
CC
135
Cipher Capital
New York
– -$271K -33,051 Closed
Ameriprise
136
Ameriprise
Minnesota
– -$231K -28,169 Closed
HRT Financial
137
HRT Financial
New York
– -$229K -27,949 Closed
Two Sigma Investments
138
Two Sigma Investments
New York
– -$167K -20,283 Closed
Qube Research & Technologies (QRT)
139
Qube Research & Technologies (QRT)
United Kingdom
– -$162K -19,787 Closed
Wolverine Trading
140
Wolverine Trading
Illinois
– -$140K -18,294 Closed
Marshall Wace
141
Marshall Wace
United Kingdom
– -$148K -18,082 Closed
BC
142
Bridgefront Capital
Texas
– -$138K -16,845 Closed
AIM
143
Aigen Investment Management
New York
– -$120K -14,652 Closed
Marshall Wace North America
144
Marshall Wace North America
New York
– -$118K -14,333 Closed
BCM
145
Bayesian Capital Management
New York
– -$114K -13,904 Closed
XTX Topco
146
XTX Topco
Cayman Islands
– -$113K -13,723 Closed
SG Americas Securities
147
SG Americas Securities
New York
– -$111K -13,566 Closed
Lazard Asset Management
148
Lazard Asset Management
New York
– -$98K -11,966 Closed
CCIA
149
Campbell & Co Investment Adviser
Maryland
– -$85K -10,400 Closed
Sowell Financial Services
150
Sowell Financial Services
Arkansas
– -$18K -2,762 Closed