Comparable stake leader
PARADIGM CAPITAL MANAGEMENT INC/NY
SEC ownership of Ribbon Communications Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001708055.
Disclosed value leader
JPMORGAN CHASE & CO
Comparable rows
50/50
Latest evidence
30 Jun 2026
- Public ticker
- RBBN on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
PARADIGM CAPITAL MANAGEMENT INC/NY
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
PARADIGM CAPITAL MANAGEMENT INC/NY
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001708055
- Issuer location
- Plano, TX
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Ribbon Communications Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
PARADIGM CAPITAL MANAGEME...
Disclosed value leader
JPMORGAN CHASE & CO
Comparable rows
50/50
Latest evidence
30 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 5%
13D/G row: PARADIGM CAPITAL MANAGEMENT INC/NY
Showing 1-8 of 50 holder rows.
Quick read
PARADIGM CAPITAL MANAGEMENT INC/NY leads the comparable SEC ownership view at 5%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens PARADIGM CAPITAL MANAGEMENT INC/NY's linked filing trail.
Comparable ownership
Top 5
PARADIGM CAPITAL MANAGEMENT INC/NY
5%
JPMORGAN CHASE & CO
30%
Neuberger Berman Group LLC
10%
BlackRock, Inc.
4.1%
DIMENSIONAL FUND ADVISORS LP
3.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| PARADIGM CAPITAL MANAGEMENT INC/NY |
13D/G
13F
Company
|
5%
|
$36,567,476
8,748,200 shares
|
$0 | 30 Jun 2025 |
| JPMORGAN CHASE & CO |
3/4/5
13F
10%+ Owner · Company
|
30%
from 13F
|
$190,974,219
52,036,572 shares
|
— | 09 Apr 2025 |
| Neuberger Berman Group LLC |
13F
Company
|
10%
|
$38,674,757
18,311,073 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13F
Company
|
4.1%
|
$16,723,023
7,146,590 shares
|
— | 30 Jun 2026 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
3.6%
|
$14,707,941
6,286,323 shares
|
— | 30 Jun 2026 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
2.9%
|
$11,912,769
5,090,927 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
2.2%
|
$9,185,965
3,925,626 shares
|
— | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
2%
|
$8,220,577
3,513,067 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$726,882.
Buys
$74,307
Insiders: 1
Sells
$801,189
Insiders: 2
Net
-$726,882
Shares: -161,300
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 37,000
Shares: 198,300
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 37,000 | 0 | $74,307 | $0 | +$74,307 |
| 9-12 | 0 | 198,300 | $0 | $801,189 | -$801,189 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 21 reporting-owner rows connected to Ribbon Communications Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
21
Largest Forms 3/4/5 holder
JPMORGAN CHASE & CO
Net 12M change
-$726,882
Latest report
15 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| JPMORGAN CHASE & CO | 10%+ Owner | $190,974,219 | Filing P/S | 09 Apr 2025 | ||
| Bruce William McClelland | Chief Executive Officer, Director | $6,535,651 | +$74,307 | +1.2% | Mixed | 17 Apr 2026 |
| Bruns H. Grayson | Director | $1,966,231 | Median | 15 Jul 2026 | ||
| Miguel A. Lopez | Evp, Cfo | $1,740,817 | Mixed | 17 Oct 2024 | ||
| Sam Bucci | EVP, Chief Operating Officer | $1,546,162 | Mixed | 15 Jun 2026 | ||
| Patrick W. Macken | EVP, Chief Legal Officer | $1,242,716 | Mixed | 15 Jun 2026 | ||
| Eric S. Marmurek | EVP, Chief Financial Officer | $1,223,290 | Mixed | 15 Jun 2026 | ||
| Steven M. Bruny | EVP Sales, Americas Region | $903,879 | Mixed | 15 Sep 2022 | ||
| Beatriz Infante V | Director | $817,734 | -$34,597 | -4.1% | Mixed | 15 Jun 2026 |
| Anthony Scarfo | EVP & GM, Cloud & Edge BU | $776,283 | Mixed | 15 Sep 2022 | ||
| Shaul Shani | Director | $556,260 | Median | 15 Jul 2026 | ||
| R. Stewart Ewing Jr. | Director | $508,568 | Mixed | 15 Jun 2026 | ||
| Tanya Tamone | Director | $473,396 | Mixed | 15 Jun 2026 | ||
| Scott Mair | Director | $441,252 | Mixed | 15 Jun 2026 | ||
| Stephen J. McCaffery | EVP, Global Sales | $331,360 | Mixed | 15 Jun 2026 | ||
| John Raymond Townsend | EVP, Chief Financial Officer | $197,899 | Mixed | 15 Apr 2026 | ||
| Krish A. Prabhu | Director | $166,075 | Mixed | 25 May 2022 | ||
| Mariano de Beer | Director | $159,980 | Mixed | 15 Jun 2023 | ||
| Dan Redington | EVP, Global Sales | $148,331 | -$766,592 | -84% | Mixed | 04 Sep 2025 |
| Louis Silver | Director | Mixed | 15 Jun 2026 |
Recent insider transactions for Ribbon Communications Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Bruns H. Grayson | RBBN | Common Stock | Award | 1.75% | 14,423 | 840,270 | 15 Jul 2026 | Direct | ||
| Shaul Shani | RBBN | Common Stock | Award | 5.2% | 11,752 | 237,718 | 15 Jul 2026 | Direct | ||
| Tanya Tamone | RBBN | Common Stock | Options Exercise | 23.5% | 42,500 | 223,300 | 16 Jun 2026 | Direct | ||
| Tanya Tamone | RBBN | RSUs | Options Exercise | -100% | -42,500 | 0 | 16 Jun 2026 | Direct | ||
| Scott Mair | RBBN | Common Stock | Options Exercise | 48% | 67,500 | 208,138 | 16 Jun 2026 | Direct | ||
| Scott Mair | RBBN | RSUs | Options Exercise | -100% | -67,500 | 0 | 16 Jun 2026 | Direct | ||
| Shaul Shani | RBBN | Common Stock | Options Exercise | 23.2% | 42,500 | 225,966 | 16 Jun 2026 | Direct | ||
| Shaul Shani | RBBN | RSUs | Options Exercise | -100% | -42,500 | 0 | 16 Jun 2026 | Direct | ||
| Beatriz Infante V | RBBN | Common Stock | Options Exercise | 12.4% | 42,500 | 385,724 | 16 Jun 2026 | Direct | ||
| Beatriz Infante V | RBBN | RSUs | Options Exercise | -100% | -42,500 | 0 | 16 Jun 2026 | Direct | ||
| Bruns H. Grayson | RBBN | Common Stock | Options Exercise | 5.43% | 42,500 | 825,847 | 16 Jun 2026 | Direct | ||
| Bruns H. Grayson | RBBN | RSUs | Options Exercise | -100% | -42,500 | 0 | 16 Jun 2026 | Direct | ||
| R. Stewart Ewing Jr. | RBBN | Common Stock | Options Exercise | 21.5% | 42,500 | 239,891 | 16 Jun 2026 | Direct | ||
| R. Stewart Ewing Jr. | RBBN | RSUs | Options Exercise | -100% | -42,500 | 0 | 16 Jun 2026 | Direct | ||
| Sam Bucci | RBBN | PSUs | Award | 100,000 | 100,000 | 15 Jun 2026 | Direct | |||
| Sam Bucci | RBBN | Performance-Based RSUs (PSUs) | Award | 150,000 | 150,000 | 15 Jun 2026 | Direct | |||
| Sam Bucci | RBBN | Restructed Stock Unites (RSUs) | Award | 250,000 | 250,000 | 15 Jun 2026 | Direct | |||
| Stephen J. McCaffery | RBBN | PSUs | Award | 80,000 | 80,000 | 15 Jun 2026 | Direct | |||
| Stephen J. McCaffery | RBBN | Performance-Based RSUs (PSUs) | Award | 120,000 | 120,000 | 15 Jun 2026 | Direct | |||
| Stephen J. McCaffery | RBBN | Restructed Stock Unites (RSUs) | Award | 200,000 | 200,000 | 15 Jun 2026 | Direct | |||
| Eric S. Marmurek | RBBN | PSUs | Award | 60,000 | 60,000 | 15 Jun 2026 | Direct | |||
| Eric S. Marmurek | RBBN | Performance-Based RSUs (PSUs) | Award | 90,000 | 90,000 | 15 Jun 2026 | Direct | |||
| Eric S. Marmurek | RBBN | Restructed Stock Unites (RSUs) | Award | 150,000 | 150,000 | 15 Jun 2026 | Direct | |||
| Patrick W. Macken | RBBN | PSUs | Award | 65,000 | 65,000 | 15 Jun 2026 | Direct | |||
| Patrick W. Macken | RBBN | Performance-Based RSUs (PSUs) | Award | 97,500 | 97,500 | 15 Jun 2026 | Direct | |||
| Patrick W. Macken | RBBN | Restructed Stock Unites (RSUs) | Award | 162,500 | 162,500 | 15 Jun 2026 | Direct | |||
| Tanya Tamone | RBBN | Restricted Stock Units (RSUs) | Award | 63,197 | 63,197 | 15 Jun 2026 | Direct | |||
| Louis Silver | RBBN | Restricted Stock Units (RSUs) | Award | 63,197 | 63,197 | 15 Jun 2026 | Direct | |||
| Scott Mair | RBBN | Restricted Stock Units (RSUs) | Award | 63,197 | 63,197 | 15 Jun 2026 | Direct | |||
| Shaul Shani | RBBN | Restricted Stock Units (RSUs) | Award | 63,197 | 63,197 | 15 Jun 2026 | Direct | |||
| Beatriz Infante V | RBBN | Restricted Stock Units (RSUs) | Award | 63,197 | 63,197 | 15 Jun 2026 | Direct | |||
| Bruns H. Grayson | RBBN | Restricted Stock Units (RSUs) | Award | 63,197 | 63,197 | 15 Jun 2026 | Direct | |||
| R. Stewart Ewing Jr. | RBBN | Restricted Stock Units (RSUs) | Award | 63,197 | 63,197 | 15 Jun 2026 | Direct | |||
| Patrick W. Macken | RBBN | Common Stock | Tax liability | -12.2% | -59,239 | 427,498 | 15 May 2026 | Direct | ||
| Patrick W. Macken | RBBN | Common Stock | Options Exercise | 35.2% | 131,789 | 506,143 | 15 May 2026 | Direct | ||
| Patrick W. Macken | RBBN | RSUs | Options Exercise | -68.8% | -98,999 | 44,831 | 15 May 2026 | Direct | ||
| Patrick W. Macken | RBBN | PSUs | Options Exercise | -100% | -32,790 | 0 | 15 May 2026 | Direct | ||
| Sam Bucci | RBBN | Common Stock | Tax liability | -14.8% | -93,492 | 536,035 | 15 May 2026 | Direct | ||
| Sam Bucci | RBBN | Common Stock | Options Exercise | 37.2% | 174,656 | 643,880 | 15 May 2026 | Direct | ||
| Sam Bucci | RBBN | RSUs | Options Exercise | -72.1% | -136,078 | 52,742 | 15 May 2026 | Direct | ||
| Sam Bucci | RBBN | PSUs | Options Exercise | -100% | -38,578 | 0 | 15 May 2026 | Direct | ||
| Eric S. Marmurek | RBBN | Common Stock | Tax liability | -5.89% | -31,806 | 508,176 | 15 May 2026 | Direct | ||
| Eric S. Marmurek | RBBN | Common Stock | Options Exercise | 17.1% | 80,835 | 553,953 | 15 May 2026 | Direct | ||
| Eric S. Marmurek | RBBN | RSUs | Options Exercise | -64.6% | -57,689 | 31,645 | 15 May 2026 | Direct | ||
| Eric S. Marmurek | RBBN | PSUs | Options Exercise | -100% | -23,146 | 0 | 15 May 2026 | Direct | ||
| Bruce William McClelland | RBBN | Common Stock | Tax liability | -32.2% | -825,733 | 1,742,034 | 15 May 2026 | Direct | ||
| Bruce William McClelland | RBBN | Common Stock | Options Exercise | 147.2% | 2,098,438 | 3,524,297 | 15 May 2026 | Direct | ||
| Bruce William McClelland | RBBN | RSUs | Options Exercise | -89% | -1,924,845 | 237,342 | 15 May 2026 | Direct | ||
| Bruce William McClelland | RBBN | PSUs | Options Exercise | -100% | -173,593 | 0 | 15 May 2026 | Direct | ||
| Patrick W. Macken | RBBN | Common Stock | Tax liability | -13.1% | -53,442 | 354,946 | 17 Apr 2026 | Direct |
* marks a reported price that did not pass the local price check.