RIBBON COMMUNICATIONS INC

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RBBN·762544104·US·Common Stock·Technology - Software - Application-13D/G

RBBN (RIBBON COMMUNICATIONS INC) is held by 89 institutional investors as of Q1 2026. Largest holders: JPMORGAN CHASE & CO ($108M), Neuberger Berman Group LLC ($33.2M), BlackRock, Inc. ($14.3M). Net institutional sentiment: Mixed.

89

Holders

(7 Elite)

$240M

Total Value

50% (102)

Consensus

51 buying - 51 selling

13F: Mar 31, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)74

Insider (Form 4)37

Activist (13D/13G)50

Congressional (STOCK Act)76

Holder Quality

13

★★★★★

Elite

33

★★★★

Strong

21

★★★

Solid

59

★★

Below

82

★

Weak

Held by 89 funds

7 elite

Who's Trading

InsiderRDRedington DanSell $57KSep 8, 2025

InsiderIVINFANTE BEATRIZ VSell $35KSep 5, 2025

InsiderRDRedington DanSell $626KSep 5, 2025

InsiderRDRedington DanSell $83KSep 4, 2025

ActivistPIPARADIGM CAPITAL MANAGEMENT INC/NY5.0%Aug 14, 2025

InsiderJCJPMORGAN CHASE & COBuy $51.38Apr 9, 2025

InsiderJCJPMORGAN CHASE & COSellApr 9, 2025

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Top Holders

Top Holders (89)History

AllNewIncreasedHeldDecreasedExited

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
JPMORGAN CHASE & CO	Increased	52M(+0.0%)	$108M	0.0%	-48.43%	30
Neuberger Berman Group LLC	Decreased	17.4M(-0.4%)	$33.2M	0.0%	-28.99%	0
BlackRock, Inc.	Decreased	6.7M(-12.3%)	$14.3M	0.0%	-48.43%	0
DIMENSIONAL FUND ADVISORS LP	Decreased	6.4M(-1.9%)	$13.5M	0.0%	-35.82%	0
ROYCE & ASSOCIATES LP	Increased	4.9M(+5.7%)	$10.3M	0.1%	-35.32%	35
VAVANGUARD CAPITAL MANAGEMENT LLC	New	4.2M	$8.9M	0.0%	-8.15%	38
VPVANGUARD PORTFOLIO MANAGEMENT LLC	New	3.3M	$7.1M	0.0%	-8.15%	38
GEODE CAPITAL MANAGEMENT, LLC	Increased	2.4M(+4.9%)	$5.1M	0.0%	-49.13%	28
Connor, Clark & Lunn Investment Management Ltd.	Increased	2.1M(+4.7%)	$4.4M	0.0%	-41.28%	28
STATE STREET CORP	Decreased	1.9M(-9.0%)	$4M	0.0%	-29.32%	0
DED. E. Shaw & Co., Inc.	Increased	1.5M(+57.0%)	$3.3M	0.0%	-30.13%	38
AQR CAPITAL MANAGEMENT LLC	Increased	1.3M(+155.8%)	$2.7M	0.0%	-21.33%	42
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Increased	1.2M(+18.2%)	$2.6M	0.0%	-38.06%	31
MWMARSHALL WACE, LLP	Increased	769,787(+343.2%)	$1.6M	0.0%	-19.33%	41
GOLDMAN SACHS GROUP INC	Decreased	744,745(-5.4%)	$1.6M	0.0%	-38.97%	0
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	708,163(-7.9%)	$1.5M	0.0%	-46.37%	0
NORTHERN TRUST CORP	Decreased	705,858(-23.5%)	$1.5M	0.0%	-49.56%	0
JACOBS LEVY EQUITY MANAGEMENT, INC	Decreased	685,310(-23.0%)	$1.5M	0.0%	-36.42%	0
VFVANGUARD FIDUCIARY TRUST CO	New	587,429	$1.2M	0.0%	-8.15%	35
CITADEL ADVISORS LLC	Increased	574,989(+966.7%)	$1.2M	0.0%	-13.15%	41

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RBBNRIBBON COMMUNICATIONS INC

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Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer