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Ribbon Communications

Name Holding Trade Value Shares
Change
Change in
Stake
JP Morgan Chase
1
JP Morgan Chase
New York
$155M
PCMI
2
Paradigm Capital Management Inc
New York
$18.9M +$10.2M +2,557,665 +72%
BlackRock
3
BlackRock
New York
$13.2M +$676K +169,743 +4%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$12.3M -$82.8K -20,813 -0.5%
Neuberger Berman Group
5
Neuberger Berman Group
New York
$10.6M +$2.66M +667,259 +24%
Vanguard Group
6
Vanguard Group
Pennsylvania
$8.81M -$3.63M -912,482 -24%
Renaissance Technologies
7
Renaissance Technologies
New York
$5.83M -$785K -197,300 -9%
State Street
8
State Street
Massachusetts
$4.03M +$345K +86,795 +7%
D.E. Shaw & Co
9
D.E. Shaw & Co
New York
$3.84M +$819K +205,740 +20%
CS
10
Central Securities
New York
$3.34M -$677K -170,000 -14%
RA
11
Royce & Associates
New York
$3.12M -$2.54M -638,803 -39%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$2.41M +$138K +34,655 +5%
AQR Capital Management
13
AQR Capital Management
Connecticut
$2.38M +$2.54M +639,148 +501%
Arrowstreet Capital
14
Arrowstreet Capital
Massachusetts
$2.24M +$1.07M +269,826 +60%
Northern Trust
15
Northern Trust
Illinois
$2.17M -$4.29K -1,079 -0.2%
HCM
16
Horrell Capital Management
Arkansas
$2.15M -$497K -125,000 -15%
Nuveen
17
Nuveen
North Carolina
$2.12M +$61.7K +15,512 +2%
HIM
18
Herald Investment Management
United Kingdom
$1.88M
HIM
19
Hillsdale Investment Management
Ontario, Canada
$1.86M +$1.46M +366,225 +157%
First Trust Advisors
20
First Trust Advisors
Illinois
$1.73M +$1.37M +344,333 +161%
Barrow, Hanley, Mewhinney & Strauss
21
Barrow, Hanley, Mewhinney & Strauss
Texas
$1.44M +$846K +212,537 +85%
BCM
22
Bridgeway Capital Management
Texas
$1.24M +$1.6M +400,900 New
Bank of New York Mellon
23
Bank of New York Mellon
New York
$1.2M +$17.7K +4,444 +1%
PCM
24
Penserra Capital Management
California
$1.12M +$1.09M +273,643 +229%
Charles Schwab
25
Charles Schwab
California
$1.08M +$34.4K +8,647 +3%