What is the 13F Pro Quality Score for RBBN?

13F Pro ranks Ribbon Communications Inc. (RBBN) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View RBBN's current score at https://13fpro.ai/research/RBBN (free sign-up required for the full ranking).

Where does 13F Pro source RBBN data?

All Ribbon Communications Inc. fundamentals and ownership data come directly from SEC EDGAR. Ribbon Communications Inc. files with the SEC under CIK 1708055. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is RBBN in?

Ribbon Communications Inc. (RBBN) is classified in the Technology sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/technology.

How often is RBBN research updated on 13F Pro?

RBBN's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

Ribbon Communications Inc.(RBBN)Stock Analysis

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13F Pro Quality Score

28.0/100

Rank #2,451 of 2,879 stocks

View Technology peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

32.5/100

Profitability

21.0/100

Balance Sheet

21.1/100

Earnings Quality

30.0/100

Free Cash Flow

26.3/100

Institutional Flow

0.8/100

Revenue Scale

44.6/100

Dilution Risk

39.0/100

RBBN Stock Analysis & AI Quality Score

AI stock analysis and institutional research for Ribbon Communications Inc. (RBBN), a Technology sector company. 13F Pro's AI-powered ranking engine scores RBBN at 28.0/100 on a 32-signal composite quality model, placing it at rank #2,451 of 2,879 stocks — the bottom half of the AI-ranked universe. Areas of concern include institutional flow (0.8) and profitability (21.0), which score below median versus the broader universe. Shareholder dilution risk is elevated at 39.0/100, reflecting ongoing share issuance or stock-based compensation. Based on the latest XBRL financial filings (Q1 2026), Ribbon Communications Inc. reports quarterly revenue of $162.6M, net income of $-34.5M, free cash flow of $-25.1M. Top institutional holders of RBBN by reported 13-F value include Neuberger Berman Group, PARADIGM CAPITAL MANAGEMENT /NY, BlackRock,, based on the most recent SEC filings. RBBN trades on the Nasdaq exchange and files with the SEC under CIK 1708055. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate RBBN daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for Ribbon Communications Inc. directly from SEC EDGAR. Ribbon Communications Inc.'s 13F Pro composite quality score has ranged between 8 and 60 since 2021, currently 28.0 — a declining long-term trajectory across 56 quarterly and live scoring snapshots.

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Fun facts about Ribbon Communications Inc.

Quirks, history, and lore behind RBBN — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. technology company · small-cap · listed on Nasdaq · headquartered in Massachusetts.
2
The Numbers
Annual revenue in the range of roughly $200–250 million, with a workforce of a few thousand — small by Big Tech standards but a serious player in a niche infrastructure market.
3
The History
Born from the 2019 merger of two legacy telecom-tech firms — GENBAND and Sonus Networks — stitching together decades of voice-over-IP and session border controller heritage.
4
The Secret
Its gear sits invisibly in the core of carrier and enterprise networks, making sure phone calls, video, and data actually connect — the plumbing nobody thinks about until it breaks.
5
The Lore
It counts major global telcos, governments, and defense agencies among its customers, and its technology helps networks migrate from old-school TDM switching to modern IP infrastructure.
6
The Giveaway
Its ticker is a four-letter bow on a company that makes session border controllers and cloud-native communications software — tying together the old telephone world and the new one.

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Revenue

Q1 2026

$162.6M

Net Income

Q1 2026

$-34.5M

Free Cash Flow

Q1 2026

$-25.1M

D/E Ratio

Q1 2026

0.83

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

+1.3% YoY

$844.6MFY 2025

FY22 $819.8MFY23 $826.3MFY24 $833.9MFY25 $844.6M

Net Income

+100.1% YoY

$39.6KFY 2025

FY22 $-98.1MFY23 $-66.2KFY24 $-54.2MFY25 $39.6K

Operating Income

-119.7% YoY

$-3.3MFY 2025

FY22 $-48.3MFY23 $-24.3MFY24 $16.9MFY25 $-3.3M

EPS (Diluted)

+171.0% YoY

$0.22FY 2025

FY22 $-0.63FY23 $-0.39FY24 $-0.31FY25 $0.22

Total Assets

+4.3% YoY

$1.21BFY 2025

FY22 $1.26BFY23 $1.14BFY24 $1.16BFY25 $1.21B

Total Debt

-1.0% YoY

$350.9MFY 2025

FY22 $350.5MFY23 $270.5MFY24 $354.4MFY25 $350.9M

Op. Cash Flow

+2.3% YoY

$51.4MFY 2025

FY22 $-26.4MFY23 $17.1MFY24 $50.2MFY25 $51.4M

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$844.6M +1.3%	$833.9M +0.9%	$826.3M +0.8%	$819.8M -3.0%	$845.0M +0.1%	$843.8M
Net Income	$39.6K +100.1%	$-54.2M -81818.6%	$-66.2K +99.9%	$-98.1M -55256.3%	$-177.2K -100.2%	$88.6M
Operating Income	$-3.3M -119.7%	$16.9M +169.5%	$-24.3M +49.7%	$-48.3M +59.0%	$-117.8M -7157.9%	$1.7M
EPS (Diluted)	$0.22 +171.0%	$-0.31 +20.5%	$-0.39 +38.1%	$-0.63 +47.5%	$-1.20 -296.7%	$0.61
Total Assets	$1.21B +4.3%	$1.16B +1.6%	$1.14B -8.9%	$1.26B -6.8%	$1.35B -12.9%	$1.55B
Total Debt	$350.9M -1.0%	$354.4M +31.0%	$270.5M -22.8%	$350.5M -5.3%	$370.3M -4.6%	$388.1M
Operating Cash Flow	$51.4M +2.3%	$50.2M +194.0%	$17.1M +164.8%	$-26.4M -237.4%	$19.2M -81.1%	$101.6M

AI Insight: RBBN Financial Trends

Ribbon Communications shows volatile revenue swings with Q1 2026 dropping 28% sequentially to $163M amid persistent operational challenges.

• Revenue declined 28% from Q4 2025's $227M to Q1 2026's $163M, marking the lowest quarterly revenue in the dataset.

• Operating income turned negative at -$32M in Q1 2026 after three consecutive quarters of positive operating results.

• Total debt decreased modestly from $354M in Q2 2024 to $349M in Q1 2026, showing gradual deleveraging.

⚠ Operating cash flow swung to -$22M in Q1 2026 after positive $29M in Q4 2025, indicating working capital strain.

⚠ Company posted only two profitable quarters out of eight periods, with net income volatility from -$34M to $89M.

AI Insight: RBBN Ratio Trends

RBBN shows extreme quarterly volatility with operating margins swinging from +13.2% in Q4 2024 to -19.5% in Q1 2026.

• Operating margin deteriorated from 4.1% in Q4 2025 to -19.5% in Q1 2026, marking the worst quarterly performance in the dataset.

• ROE collapsed from 79.3% in Q4 2025 to -32.9% in Q1 2026, reflecting severe earnings volatility.

• Debt-to-equity ratio improved from 0.98 in Q3 2025 to 0.83 in Q1 2026, indicating modest deleveraging.

⚠ Quarterly results show wild swings between profitable and deeply unprofitable periods, suggesting unstable business fundamentals.

⚠ ROIC turned sharply negative to -16.5% in Q1 2026 after briefly positive performance in prior quarters.

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Available Research

13F Pro tracks comprehensive data for Ribbon Communications Inc. including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of RBBN

Neuberger Berman Group LLC
$33.2M17,361,988 sh
PARADIGM CAPITAL MANAGEMENT INC/NY
$17.0M8,036,335 sh
BlackRock, Inc.
$14.3M6,724,007 sh
DIMENSIONAL FUND ADVISORS LP
$13.5M6,351,110 sh
ROYCE & ASSOCIATES LP
$10.3M4,879,741 sh
VANGUARD CAPITAL MANAGEMENT LLC
$8.9M4,216,459 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$7.1M3,335,665 sh
GEODE CAPITAL MANAGEMENT, LLC
$5.1M2,414,560 sh
Connor, Clark & Lunn Investment Management Ltd.
$4.4M2,089,722 sh
STATE STREET CORP
$4.0M1,910,027 sh

Fund	Value	Shares
Neuberger Berman Group LLC	$33.2M	17,361,988
PARADIGM CAPITAL MANAGEMENT INC/NY	$17.0M	8,036,335
BlackRock, Inc.	$14.3M	6,724,007
DIMENSIONAL FUND ADVISORS LP	$13.5M	6,351,110
ROYCE & ASSOCIATES LP	$10.3M	4,879,741
VANGUARD CAPITAL MANAGEMENT LLC	$8.9M	4,216,459
VANGUARD PORTFOLIO MANAGEMENT LLC	$7.1M	3,335,665
GEODE CAPITAL MANAGEMENT, LLC	$5.1M	2,414,560
Connor, Clark & Lunn Investment Management Ltd.	$4.4M	2,089,722
STATE STREET CORP	$4.0M	1,910,027

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Is RBBN a good stock to buy?

13F Pro's AI-powered analysis of Ribbon Communications Inc. (RBBN) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Technology sector (listed on Nasdaq). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for RBBN are available on the RBBN stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own RBBN?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling RBBN. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of Ribbon Communications Inc.'s investment landscape.