Latest Period
Q4 2025
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
151
Shares (Excl. Options)
129,638,005
Price
$2.88
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- Type / Class
- Equity / Common Stock
- Symbol
- RBBN on Nasdaq
- Shares outstanding
- 174,964,000
- Price per share
- $2.38
- All holders as of 31 Dec 2025
- Q4 2025
- Total 13F shares
- 129,638,005
- Total reported value
- $369,207,555
- % of total 13F portfolios
- 0%
- Share change
- +14,451
- Value change
- -$1,377,110
- Number of holders
- 151
- Price from insider filings
- $2.38
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Quick Takeaways
- RBBN - Ribbon Communications Inc. - Common Stock is tracked under CUSIP 762544104.
- 151 institutions reported positions in Q4 2025.
- 1 significant owner is listed from Schedule 13D/13G reporting.
What Changed
- Holder count moved from 151 to 35 between Q4 2025 and Q1 2026.
- Reported value moved from $369,207,555 to $3,084,208.
Why This Matters
- 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.
Source Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 151 institutions filings for Q4 2025.
Investment Quick Answers
What is CUSIP 762544104?
CUSIP 762544104 identifies RBBN - Ribbon Communications Inc. - Common Stock in SEC 13F datasets.
Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.
Next ownership checks
Use the next link that matches the question you still need to answer about this security.
- Latest 13F filings when you want to inspect fresh institutional portfolio moves.
- Latest Schedule 13D/13G reports when you need large-owner changes outside the 13F cycle.
- All institutional ownership pages to compare this security with other holder-history pages.
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 Dec 2025, 151 institutional investors reported holding 129,638,005 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% | 52,037,577 | 0% | 0.01% | $149,868,221 |
| NEUBERGER BERMAN GROUP LLC | 10% | 17,431,102 | -4.5% | 0.03% | $46,032,220 |
| PARADIGM CAPITAL MANAGEMENT INC/NY | 4.8% | 8,323,298 | -4.9% | 1% | $23,971,098 |
| VANGUARD GROUP INC | 4.5% | 7,833,009 | +1.8% | 0% | $22,559,066 |
| BlackRock, Inc. | 4.4% | 7,665,925 | -0.43% | 0% | $22,077,863 |
| DIMENSIONAL FUND ADVISORS LP | 3.7% | 6,475,125 | -1.1% | 0% | $18,649,429 |
| ROYCE & ASSOCIATES LP | 2.6% | 4,614,741 | +7.2% | 0.13% | $13,290,454 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.3% | 2,302,573 | -0.34% | 0% | $6,632,567 |
| STATE STREET CORP | 1.2% | 2,099,793 | +0.25% | 0% | $6,047,404 |
| Connor, Clark & Lunn Investment Management Ltd. | 1.1% | 1,995,845 | +7% | 0.02% | $5,748,034 |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC | 0.72% | 1,267,586 | -2.9% | 0.92% | $3,650,648 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.59% | 1,029,716 | +6.8% | 0% | $2,965,582 |
| D. E. Shaw & Co., Inc. | 0.56% | 979,841 | +66% | 0% | $2,821,942 |
| NORTHERN TRUST CORP | 0.53% | 922,554 | -7.6% | 0% | $2,656,956 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 0.51% | 890,168 | +89% | 0.01% | $2,563,684 |
| First Eagle Investment Management, LLC | 0.49% | 862,528 | -17% | 0% | $2,484,081 |
| HERALD INVESTMENT MANAGEMENT Ltd | 0.46% | 800,000 | -12% | 0.3% | $2,304,000 |
| GOLDMAN SACHS GROUP INC | 0.45% | 787,493 | +86% | 0% | $2,267,980 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.44% | 769,074 | -0.05% | 0% | $2,214,933 |
| ACADIAN ASSET MANAGEMENT LLC | 0.44% | 761,165 | +2100% | 0% | $2,189,000 |
| KENNEDY CAPITAL MANAGEMENT LLC | 0.41% | 710,703 | 0.04% | $2,046,825 | |
| AQR CAPITAL MANAGEMENT LLC | 0.28% | 491,471 | +191% | 0% | $1,415,437 |
| Silverberg Bernstein Capital Management LLC | 0.25% | 436,023 | +1.9% | 0.73% | $1,255,746 |
| MORGAN STANLEY | 0.22% | 392,390 | -22% | 0% | $1,130,083 |
| Bank of New York Mellon Corp | 0.22% | 389,994 | +16% | 0% | $1,123,183 |
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 | 1,454,853 | $3,084,208 | +$274,201 | $2.12 | 35 |
| 2025 Q4 | 129,638,005 | $369,207,555 | -$1,377,110 | $2.88 | 151 |
| 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 |