Latest Period
Q1 2026
Security Snapshot
Ribbon Communications Inc. - Common Stock (RBBN) Institutional Ownership
CUSIP: 762544104
13F Institutional Holders and Ownership History from Q4 2017 to Q1 2026
Institutions Reporting
149
Shares (Excl. Options)
129,256,500
Price
$2.12
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- Type / Class
- Equity / Common Stock
- Symbol
- RBBN on Nasdaq
- Shares outstanding
- 174,964,000
- Price per share
- $2.66
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 129,256,500
- Total reported value
- $268,160,669
- % of total 13F portfolios
- 0%
- Share change
- -742,300
- Value change
- -$3,887,488
- Number of holders
- 149
- Price from insider filings
- $2.66
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- RBBN - Ribbon Communications Inc. - Common Stock is tracked under CUSIP 762544104.
- 149 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 153 to 149 between Q4 2025 and Q1 2026.
- Reported value moved from $369,243,520 to $268,160,669.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 149 institutions filings for Q1 2026.
Security key
762544104
Latest holder period
Q1 2026
13F holders
149
13D/G owners
1
CIK / CUSIP context first
Open Q1 2026 holders
RBBN full holder history
Ribbon Communications Inc. SEC filings
Ribbon Communications Inc. company facts
Ribbon Communications Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 762544104:
Significant Owners of Ribbon Communications Inc. - Common Stock (RBBN) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| PARADIGM CAPITAL MANAGEMENT INC/NY | 5% | $36,567,476 | 8,748,200 | PARADIGM CAPITAL MANAGEMENT INC/NY | 30 Jun 2025 |
As of 31 Mar 2026, 149 institutional investors reported holding 129,256,500 shares of Ribbon Communications Inc. - Common Stock (RBBN). This represents 74% of the company’s total 174,964,000 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of Ribbon Communications Inc. - Common Stock (RBBN) together control 70% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| JPMORGAN CHASE & CO | 30% | 52,043,036 | +0.01% | 0.01% | $107,989,300 |
| NEUBERGER BERMAN GROUP LLC | 9.9% | 17,361,988 | -0.4% | 0.03% | $33,200,090 |
| PARADIGM CAPITAL MANAGEMENT INC/NY | 4.6% | 8,036,335 | -3.4% | 0.65% | $17,037,030 |
| BlackRock, Inc. | 3.8% | 6,724,007 | -12% | 0% | $14,254,896 |
| DIMENSIONAL FUND ADVISORS LP | 3.6% | 6,351,110 | -1.9% | 0% | $13,463,964 |
| ROYCE & ASSOCIATES LP | 2.8% | 4,879,741 | +5.7% | 0.1% | $10,345,051 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.4% | 4,216,459 | 0% | 0% | $8,938,893 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.9% | 3,335,665 | 0% | 0% | $7,071,610 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.4% | 2,414,560 | +4.9% | 0% | $5,119,979 |
| Connor, Clark & Lunn Investment Management Ltd. | 1.2% | 2,089,722 | +4.7% | 0.01% | $4,430,211 |
| STATE STREET CORP | 1.1% | 1,910,027 | -9% | 0% | $4,049,257 |
| D. E. Shaw & Co., Inc. | 0.88% | 1,538,472 | +57% | 0% | $3,261,561 |
| ACADIAN ASSET MANAGEMENT LLC | 0.82% | 1,438,490 | +89% | 0% | $3,043,000 |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC | 0.8% | 1,407,178 | +11% | 0.67% | $2,983,217 |
| AQR CAPITAL MANAGEMENT LLC | 0.72% | 1,257,347 | +156% | 0% | $2,665,576 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.7% | 1,216,876 | +18% | 0% | $2,579,777 |
| MARSHALL WACE, LLP | 0.44% | 769,787 | +343% | 0% | $1,631,949 |
| GOLDMAN SACHS GROUP INC | 0.43% | 744,745 | -5.4% | 0% | $1,578,860 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.4% | 708,163 | -7.9% | 0% | $1,501,306 |
| NORTHERN TRUST CORP | 0.4% | 705,858 | -23% | 0% | $1,496,419 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 0.39% | 685,310 | -23% | 0.01% | $1,452,857 |
| VANGUARD FIDUCIARY TRUST CO | 0.34% | 587,429 | 0% | 0% | $1,245,349 |
| CITADEL ADVISORS LLC | 0.33% | 574,989 | +967% | 0% | $1,218,977 |
| MILLENNIUM MANAGEMENT LLC | 0.28% | 491,320 | +805% | 0% | $1,041,598 |
| Silverberg Bernstein Capital Management LLC | 0.25% | 438,123 | +0.48% | 0.51% | $928,821 |
Institutional Holders of Ribbon Communications Inc. - Common Stock (RBBN) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 129,256,500 | $268,160,669 | -$3,887,488 | $2.12 | 149 |
| 2025 Q4 | 129,650,493 | $369,243,520 | -$1,377,853 | $2.88 | 153 |
| 2025 Q3 | 129,867,806 | $488,625,931 | +$5,422,869 | $3.80 | 151 |
| 2025 Q2 | 128,120,242 | $508,960,472 | +$3,024,776 | $4.01 | 143 |
| 2025 Q1 | 127,416,325 | $495,234,342 | +$5,145,829 | $3.92 | 143 |
| 2024 Q4 | 126,033,231 | $519,827,051 | +$5,503,928 | $4.16 | 131 |
| 2024 Q3 | 124,931,161 | $402,328,649 | +$55,662,098 | $3.25 | 126 |
| 2024 Q2 | 106,348,811 | $349,760,231 | -$58,641,045 | $3.29 | 128 |
| 2024 Q1 | 124,279,238 | $397,693,359 | +$69,195,005 | $3.20 | 131 |
| 2023 Q4 | 104,742,901 | $303,752,097 | +$3,494,147 | $2.90 | 125 |
| 2023 Q3 | 103,163,647 | $276,463,535 | -$1,679,277 | $2.68 | 121 |
| 2023 Q2 | 104,142,185 | $290,540,575 | -$39,834,149 | $2.79 | 125 |
| 2023 Q1 | 117,379,899 | $401,425,056 | +$3,703,828 | $3.42 | 142 |
| 2022 Q4 | 118,148,543 | $329,593,645 | +$734,645 | $2.79 | 124 |
| 2022 Q3 | 118,472,379 | $263,053,703 | +$38,836,428 | $2.22 | 118 |
| 2022 Q2 | 100,809,923 | $306,439,957 | +$3,772,283 | $3.04 | 120 |
| 2022 Q1 | 99,890,118 | $308,842,380 | -$17,676,884 | $3.09 | 124 |
| 2021 Q4 | 99,198,401 | $599,989,032 | +$11,330,479 | $6.05 | 122 |
| 2021 Q3 | 97,071,581 | $580,330,841 | -$7,772,374 | $5.98 | 117 |
| 2021 Q2 | 98,367,370 | $748,413,815 | +$402,949 | $7.61 | 120 |
| 2021 Q1 | 98,033,091 | $804,682,950 | -$5,449,138 | $8.21 | 137 |
| 2020 Q4 | 98,922,454 | $648,838,141 | +$26,001,368 | $6.56 | 121 |
| 2020 Q3 | 94,930,653 | $363,544,758 | -$2,451,038 | $3.87 | 106 |
| 2020 Q2 | 95,545,142 | $375,154,809 | +$13,011,856 | $3.93 | 106 |
| 2020 Q1 | 92,187,027 | $279,312,593 | +$5,561,696 | $3.03 | 109 |
| 2019 Q4 | 90,759,036 | $281,247,572 | -$8,614,684 | $3.10 | 108 |
| 2019 Q3 | 89,859,424 | $524,693,949 | +$9,546,797 | $5.84 | 116 |
| 2019 Q2 | 88,288,443 | $431,718,648 | +$7,283,646 | $4.89 | 102 |
| 2019 Q1 | 87,066,929 | $448,386,835 | +$10,682,142 | $5.15 | 110 |
| 2018 Q4 | 84,999,776 | $409,716,761 | -$551,109 | $4.82 | 109 |
| 2018 Q3 | 84,606,867 | $577,850,880 | +$5,506,170 | $6.83 | 105 |
| 2018 Q2 | 83,790,670 | $596,585,939 | -$108,481 | $7.12 | 94 |
| 2018 Q1 | 84,620,312 | $431,555,200 | -$22,130,722 | $5.10 | 114 |
| 2017 Q4 | 86,046,038 | $665,259,937 | +$664,493,937 | $7.73 | 118 |