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Ribbon Communications
RBBN

Overview Fund Activity

143 hedge funds and large institutions have $508M invested in Ribbon Communications in 2025 Q2 according to their latest regulatory filings, with 22 funds opening new positions, 58 increasing their positions, 35 reducing their positions, and 20 closing their positions.

Holders
143
Holders Change
–
Holders Change %
0%
% of All Funds
1.92%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
22
Increased
58
Reduced
35
Closed
20
Calls
$818K
Puts
–
Net Calls
+$818K
Net Calls Change
-$148K

Top Buyers

1
Millennium Management
1
Millennium Management
New York
$3.33M
2
RA
2
Royce & Associates
New York
$14.7M
3
Connor, Clark & Lunn Investment Management (CC&L)
3
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$5.92M
4
Northern Trust
4
Northern Trust
Illinois
$4.01M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$26.3M

Top Sellers

1
PCMI
1
Paradigm Capital Management Inc
New York
$35.1M
2
HIM
2
Hillsdale Investment Management
Ontario, Canada
$0
3
Bank of America
3
Bank of America
North Carolina
$420K
4
II
4
Inspire Investing
Idaho
$0
5
BCM
5
Bridgeway Capital Management
Texas
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Bank of New York Mellon
26
Bank of New York Mellon
New York
$1.32M 328,139 +8,596 +3%
Commonwealth Equity Services
27
Commonwealth Equity Services
Massachusetts
$1.16M 290,276 +1,000 +0.3%
State of Wisconsin Investment Board
28
State of Wisconsin Investment Board
Wisconsin
$1.11M 275,903 +76,619 +38%
NL
29
Nuveen LLC
North Carolina
$1.08M 269,521 -61,273 -19%
UBS Group
30
UBS Group
Switzerland
$1.08M 268,893 +65,682 +32%
Morgan Stanley
31
Morgan Stanley
New York
$1.03M 256,966 -135,904 -35%
Goldman Sachs
32
Goldman Sachs
New York
$973K 242,711 -114,629 -32%
PRCP
33
Pacific Ridge Capital Partners
Oregon
$944K 235,329 – –
AQR Capital Management
34
AQR Capital Management
Connecticut
$903K 225,100 +19,813 +10%
GCP
35
GSA Capital Partners
United Kingdom
$843K 210,110 +166,428 +381%
Russell Investments Group
36
Russell Investments Group
United Kingdom
$815K 203,224 +14,788 +8%
Barclays
37
Barclays
United Kingdom
$802K 200,049 +65,307 +48%
Swiss National Bank
38
Swiss National Bank
Switzerland
$744K 185,474 – –
American Century Companies
39
American Century Companies
Missouri
$738K 184,047 +37,871 +26%
RhumbLine Advisers
40
RhumbLine Advisers
Massachusetts
$708K 176,592 +23,409 +15%
Invesco
41
Invesco
Georgia
$679K 169,395 -17,310 -9%
VOYA Investment Management
42
VOYA Investment Management
Georgia
$663K 165,458 -2,296 -1%
Ameriprise
43
Ameriprise
Minnesota
$596K 148,710 +11,789 +9%
BAM
44
Bosun Asset Management
Illinois
$523K 130,188 +8,866 +7%
Polen Capital Management
45
Polen Capital Management
Florida
$522K 130,188 +130,188 New
PCM
46
Penn Capital Management
Pennsylvania
$480K 119,815 +30,516 +34%
Verition Fund Management
47
Verition Fund Management
Connecticut
$467K 116,427 +116,427 New
AllianceBernstein
48
AllianceBernstein
Tennessee
$454K 113,317 +14,430 +15%
Bank of America
49
Bank of America
North Carolina
$420K 104,634 -216,426 -67%
Legal & General Group
50
Legal & General Group
United Kingdom
$409K 102,056 – –
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