Ribbon Communications Inc.· RBBN

🇺🇸 US · MicroBroad USNASDAQ

Technology Software - Application Website

Price: $1.72
Day: +2.99%
Mkt Cap: $307.58M
52W Range: $1.55 – $4.09
Volume: 1.67M
Beta: 1.36

D55D FrameworkQuarterly Data

Holdings Analysis

Insider activity, institutional flows, and fund ownership.

Smart Money: 3.9 / 5 (Bullish), from 3 of 3 components
Institutions Q2 2026: 165 institutions hold; 88 added, 42 reduced

Blog

stockoscope.com

Ribbon Communications Inc.

RBBN|Technology|Software - Application

Current price: $2

Smart Money

Dimension 5 of 5

Insider selling pace · Q1 2026

0.0x

vs own 6-quarter average

Seller breadth · Q1 2026

0 sellers

vs 1.3 avg per quarter

Institutional net breadth · Q2 2026

+58

113 adding vs 55 reducing

Institutional ownership · Q2 2026

73.2%

165 institutions

Insider Selling Pace

Each quarter's selling vs this stock's own trailing 6-quarter average

Light <0.5xRoutineElevated >1.5xHeavy >3xBuying

Institutional Positions

Institutions adding above the line, reducing below, net as a line

NewIncreasedReducedClosedNet

Largest Institutional Holders, Q2 2026

By reported market value, and how each moved in the quarter

Holder

Change

SIMPLEX TRADING, LLC

73.9K

+100.0%

JPMORGAN CHASE & CO

52.0M

-0.5%

NEUBERGER BERMAN GROUP LLC

18.3M

+5.0%

BLACKROCK, INC.

7.1M

+5.8%

DIMENSIONAL FUND ADVISORS LP

6.3M

-1.5%

ROYCE & ASSOCIATES LP

5.1M

+3.9%

ETF & Fund Activity, Q2 2026

How the covering funds split between buying, holding and selling

31 buying94 unchanged22 selling

147 funds held RBBN in Q2 2026, holding 43.4M shares between them, up 1.0% on the quarter.

Largest fund holders

Series Portfolios Trust50.2K sh

Bridge Builder Trust45.2K sh

SPDR SERIES TRUST38.3K sh

Notable Insider Transactions, Q1 2026

Largest open-market purchases and sales by value in the last eight quarters

Sale · Sep 5

Redington Dan

$626.4K

Sale · Sep 4

Redington Dan

$83.3K

Sale · Sep 8

Redington Dan

$57.0K

Insider transactions from SEC Form 4 filings; institutional holdings from quarterly 13F filings, which are reported with a lag and can overlap between filers. 13F: quarterly institutional holdings report · ETF: Exchange-Traded Fund

See the complete picture

The full 5D Framework: Business Quality · Peer Comparison · Valuation · Analyst Sentiment · Smart Money

Explore RBBN on stockoscope.com→

Generated September 19, 2026

For educational purposes only. Not financial advice. Data may be delayed or incomplete.

Smart Money Sentiment

RBBN Smart Money Sentiment Score

A weighted 1-5 sentiment score across three smart money signals.

Smart Money

3.9/5

Bullish

Weighted across 3 components

Component Breakdown (3 of 3 available)

Insider Activity

40% weight

+30

Institutional Flow

50% weight

+60

Fund Flow

10% weight

+25

Overall Smart Money sentiment of 3.9/5 (Bullish) based on a weighted combination of 3 components. Insider activity uses a relative-baseline comparison against the stock's own history; institutional flow tracks position momentum and 13F share changes; fund flow measures ETF / mutual-fund buying vs selling. Higher scores indicate stronger bullish sentiment from professional investors.Last updated September 18, 2026.

Insider Trading Activity

Insider trading analysis comparing the latest quarter against the stock's own historical baseline.

Insider Selling Pace for RBBN

Each quarter's selling vs the stock's own trailing 6-quarter average; 1.0x is typical for this stock. Green triangles mark quarters with insider buying.

Bullish Signal

Insider buying in Q1 2026

Modest: 3 purchases totaling $74.3K (37.0K shares)

Share volume is 3x+ above the historical average, unusually strong

0.0x

Selling pace

vs own 6-qtr average

Light

0.00%

Stake sold

of active insiders' holdings

0 sellers

Seller breadth

vs 0.7 avg per quarter

$74.3K

Insider buying

1 buyer in Q1 2026

Notable Recent Transactions, RBBN

Top 7 highest-value insider trades from the last 8 quarters

Redington Dan

EVP, Global Sales

Sell

155,434 shares at $4.03

≈91.6% of their stake at the time

Sep 5, 2025$626.35K

Redington Dan

EVP, Global Sales

Sell

20,000 shares at $4.16

≈10.5% of their stake at the time

Sep 4, 2025$83.25K

Redington Dan

EVP, Global Sales

Sell

14,176 shares at $4.02

≈100.0% of their stake at the time

Sep 8, 2025$56.99K

INFANTE BEATRIZ V

Director

Sell

8,690 shares at $3.98

≈2.5% of their stake at the time

Sep 5, 2025$34.60K

McClelland Bruce William

CEO

Buy

12,500 shares at $1.99

≈0.8% of their stake after buying

Feb 11, 2026$24.86K

McClelland Bruce William

CEO

Buy

12,500 shares at $1.98

≈0.8% of their stake after buying

Feb 13, 2026$24.75K

McClelland Bruce William

CEO

Buy

12,000 shares at $2.06

≈0.8% of their stake after buying

Feb 10, 2026$24.70K

Institutional Ownership Analysis

Institutional ownership analysis with position momentum, 13F share flow, and ownership percentage trends.

Institutional Positions for RBBN

Institutions adding (new + increased) above zero, reducing (reduced + closed) below, net as a line

New Increased Reduced Closed Net (adding − reducing)

Very Bullish

Institutions accumulating in Q2 2026

73.2% institutional ownership

Strong accumulation: 113 institutions adding vs 55 reducing positions

13F share count essentially flat

Momentum improving from prior quarter

+58

Net breadth

113 adding vs 55 reducing

Strong accumulation

2.05

Add / reduce ratio

in Q2 2026

+12

New − closed

25 initiated, 13 exited

6 of 10

Top holders adding

largest holders with a known change

Position Changes

Q2 2026: how are institutions adjusting their positions?

+113 growing-55 shrinkingNet: +58

New (25)

Increased (88)

Reduced (42)

Closed (13)

Top Institutional Holders, RBBN

Largest 8 institutional positions by ownership percentage as of Q2 2026

JPMORGAN CHASE & CO

52.0M

$115.5M

Ownership

29.49%

-0.5%

NEUBERGER BERMAN GROUP LLC

18.3M

$38.7M

Ownership

10.38%

+5.0%

BLACKROCK, INC.

7.1M

$16.7M

Ownership

4.05%

+5.8%

DIMENSIONAL FUND ADVISORS LP

6.3M

$14.7M

Ownership

3.56%

-1.5%

ROYCE & ASSOCIATES LP

5.1M

$11.9M

Ownership

2.88%

+3.9%

VANGUARD CAPITAL MANAGEMENT LLC

3.9M

$9.2M

Ownership

2.22%

-7.3%

VANGUARD PORTFOLIO MANAGEMENT LLC

3.5M

$8.2M

Ownership

1.99%

+4.8%

PARADIGM CAPITAL MANAGEMENT INC/NY

3.0M

$7.1M

Ownership

1.72%

-62.4%

ETF and Mutual Fund Holdings

ETF and mutual fund activity breakdown showing buying vs selling funds, top fund holders, and detailed holdings.

Fund Activity

Q2 2026: 147 ETFs and mutual funds reporting

31 buying22 sellingNet: +9

Buying (31)

Unchanged (94)

Selling (22)

In total, funds bought 1.1M shares and sold 674.9K this quarter. Each fund counts once in the bar above, whatever the size of its move.

Bullish Signal

Funds accumulating in Q2 2026

147 ETFs and mutual funds reporting

31 buying vs 22 selling (balanced)

Top Fund Holders, RBBN

Largest 8 ETF and mutual fund positions by shares held, each fund's latest filing

Series Portfolios Trust

50.2K

Weight

31.94%

Jul 31, 2026No change

Bridge Builder Trust

45.2K

Weight

0.00%

Jun 30, 2026No change

SPDR SERIES TRUST

38.3K

Weight

0.00%

Jun 30, 2026No change

COLLEGE RETIREMENT EQUITIES FUND

37.5K

Weight

0.01%

Jun 30, 2026No change

NORTHERN LIGHTS FUND TRUST III

37.2K

Weight

0.25%

Jun 30, 2026No change

Investment Managers Series Trust

36.9K

Weight

0.00%

Jun 30, 2026No change

PACIFIC SELECT FUND

36.6K

Weight

0.00%

Jun 30, 2026Decreased

Franklin Templeton ETF Trust

35.1K

Weight

0.01%

Jun 30, 2026Decreased

Ribbon Communications Inc.· RBBN

Holdings Analysis

Insider Trading Activity

1.3Transaction History71Real market purchases and sales onlyShow All Types

Institutional Ownership Analysis

2.4Detailed Holdings108Most recent institutional positions with changes and valuations

ETF and Mutual Fund Holdings

3.3Fund Holdings Details25Most recent ETF and mutual fund holdings with share counts and weights

Search stocks

Holdings Analysis

Insider Trading Activity

1.3Transaction History71Real market purchases and sales onlyShow All Types

Institutional Ownership Analysis

2.4Detailed Holdings108Most recent institutional positions with changes and valuations

ETF and Mutual Fund Holdings

3.3Fund Holdings Details25Most recent ETF and mutual fund holdings with share counts and weights