13F Insight
DOSSIER · 13F Holders · Q2 2026

RIBBON COMMUNICATIONS INC

164 institutions still hold RIBBON COMMUNICATIONS INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 762544104·164 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$248M
visible holders
Holders
164
filers reporting
Concentration
46.63%
JPMORGAN CHASE & CO #1
top holder share
AI Holders Summary · Q2 2026

164 institutions reported RIBBON COMMUNICATIONS INC in Q2 2026. JPMORGAN CHASE & CO leads at 46.6% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
JPMORGAN CHASE & CO
CIK 0000019617
$116M52.0M0.01%Q2 202602
Neuberger Berman Group LLC
CIK 0001465109
$39M18.3M0.03%Q2 202603
BlackRock, Inc.
CIK 0002012383
$17M7.1M0.00%Q2 202604
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$10M5.7M0.00%Q3 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$9M3.9M0.00%Q2 202606
Vanguard Portfolio Management
CIK 0002100121· Index
$8M3.5M0.00%Q2 202607
PARADIGM CAPITAL MANAGEMENT INC/NY
CIK 0001037792
$7M3.0M0.19%Q2 202608
ROYCE & ASSOCIATES LP
CIK 0000906304
$6M3.2M0.05%Q3 202609
STATE STREET CORP
CIK 0000093751
$5M1.9M0.00%Q2 202610
ACADIAN ASSET MANAGEMENT LLC
CIK 0000916542
$4M2.3M0.00%Q3 202611
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$4M2.2M0.00%Q3 202612
Connor, Clark & Lunn Investment Management Ltd.
CIK 0001596800
$4M2.1M0.01%Q3 202613
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$3M1.4M0.00%Q2 202614
FIRST WILSHIRE SECURITIES MANAGEMENT INC
CIK 0000732847
$3M1.4M0.68%Q2 202615
CITADEL ADVISORS LLC
CIK 0001423053
$3M1.3M0.00%Q2 202616
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$3M1.2M0.00%Q2 202617
D. E. Shaw & Co., Inc.
CIK 0001009207
$3M980K0.00%Q4 202518
MARSHALL WACE, LLP
CIK 0001318757
$2M814K0.00%Q2 202619
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$2M800K0.00%Q2 202620
NORTHERN TRUST CORP
CIK 0000073124· Index
$2M750K0.00%Q2 2026
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