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Ribbon Communications

Name Holding Trade Value Shares
Change
Change in
Stake
JP Morgan Chase
1
JP Morgan Chase
New York
$190M
PCMI
2
Paradigm Capital Management Inc
New York
$32.2M +$4.05M +960,600 +13%
BlackRock
3
BlackRock
New York
$22M +$1.33M +316,024 +6%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$14.8M +$215K +50,901 +1%
Vanguard Group
5
Vanguard Group
Pennsylvania
$14.3M +$540K +128,141 +4%
Neuberger Berman Group
6
Neuberger Berman Group
New York
$13M -$230K -54,535 -2%
FS
7
Feinberg Stephen
$10.1M
State Street
8
State Street
Massachusetts
$6.57M -$52.6K -12,484 -0.7%
Geode Capital Management
9
Geode Capital Management
Massachusetts
$4.81M +$253K +59,969 +5%
Renaissance Technologies
10
Renaissance Technologies
New York
$4.29M -$1.15M -273,000 -20%
HIM
11
Herald Investment Management
United Kingdom
$4.21M
Northern Trust
12
Northern Trust
Illinois
$3.42M +$2.56K +607 +0.1%
D.E. Shaw & Co
13
D.E. Shaw & Co
New York
$3.19M -$960K -227,627 -22%
Nuveen
14
Nuveen
North Carolina
$3.08M -$696K -165,138 -17%
Charles Schwab
15
Charles Schwab
California
$2.61M +$485K +114,924 +21%
Arrowstreet Capital
16
Arrowstreet Capital
Massachusetts
$2.57M -$545K -129,270 -16%
HIM
17
Hillsdale Investment Management
Ontario, Canada
$2.26M
PI
18
Putnam Investments
Massachusetts
$2.25M +$2.46M +582,400 New
PCM
19
Penserra Capital Management
California
$2.08M +$553K +131,070 +32%
BCM
20
Bridgeway Capital Management
Texas
$1.82M
Jacobs Levy Equity Management
21
Jacobs Levy Equity Management
New Jersey
$1.8M -$320K -75,775 -14%
Bank of New York Mellon
22
Bank of New York Mellon
New York
$1.57M -$4.61K -1,094 -0.3%
First Trust Advisors
23
First Trust Advisors
Illinois
$1.51M +$309K +73,320 +23%
CS
24
Central Securities
New York
$1.5M -$2.61M -618,742 -61%
MSL
25
Mackay Shields LLC
New York
$1.03M -$971K -230,200 -46%