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Ribbon Communications

Name Holding Trade Value Shares
Change
Change in
Stake
Capital Research Global Investors
1
Capital Research Global Investors
California
$37.7M +$3.09M +461,000 +10%
First Trust Advisors
2
First Trust Advisors
Illinois
$26.1M +$8.65M +1,289,404 +54%
Vanguard Group
3
Vanguard Group
Pennsylvania
$22.2M -$171K -25,553 -0.8%
Neuberger Berman Group
4
Neuberger Berman Group
New York
$12.7M +$3.06M +455,952 +34%
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$11.7M +$2.3M +342,192 +26%
BFA
6
BlackRock Fund Advisors
California
$9.16M +$313K +46,573 +4%
BIT
7
BlackRock Institutional Trust
California
$9.05M +$124K +18,491 +1%
T. Rowe Price Associates
8
T. Rowe Price Associates
Maryland
$8.73M -$1.34M -199,670 -14%
Renaissance Technologies
9
Renaissance Technologies
New York
$6.1M +$5.74M +855,489 New
HCM
10
Horrell Capital Management
Arkansas
$6.07M +$134K +20,000 +2%
State Street
11
State Street
Massachusetts
$5.8M -$55.3K -8,239 -1%
D.E. Shaw & Co
12
D.E. Shaw & Co
New York
$4.82M +$1.61M +239,514 +55%
Northern Trust
13
Northern Trust
Illinois
$3.68M +$81.9K +12,209 +2%
Arrowstreet Capital
14
Arrowstreet Capital
Massachusetts
$3.66M +$207K +30,874 +6%
CS
15
Central Securities
New York
$3.56M -$671K -100,000 -17%
Millennium Management
16
Millennium Management
New York
$3.1M +$1.32M +196,081 +82%
Ameriprise
17
Ameriprise
Minnesota
$2.94M +$425K +63,344 +18%
KCM
18
Kennedy Capital Management
Missouri
$2.46M -$8.22K -1,225 -0.4%
Two Sigma Investments
19
Two Sigma Investments
New York
$2.43M +$2.28M +340,518 New
Geode Capital Management
20
Geode Capital Management
Massachusetts
$2.36M +$51K +7,597 +2%
Jacobs Levy Equity Management
21
Jacobs Levy Equity Management
New Jersey
$2.15M +$1.63M +242,510 +406%
Fuller & Thaler Asset Management
22
Fuller & Thaler Asset Management
California
$2.07M +$93.3K +13,900 +5%
Bank of New York Mellon
23
Bank of New York Mellon
New York
$2.06M -$1.16M -172,925 -37%
Morgan Stanley
24
Morgan Stanley
New York
$1.88M +$1.52M +226,146 +607%
BIM
25
Bogle Investment Management
Massachusetts
$1.83M -$804K -119,832 -32%