Security key
762544104
Ribbon Communications Inc. - Common Stock (RBBN)
CUSIP: 762544104
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 129,650,493
- Total 13F value
- $369,243,520
- Share change
- +14,190
- SEC-reported price per share
- $2.88
- Number of holders
- 153
- Value change
- -$1,377,853
- Number of buys
- 78
- Number of sells
- 76
- Shares outstanding
- 174,964,000
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
153
Top holders
10
RBBN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
Ribbon Communications Inc. SEC filings
Ribbon Communications Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 762544104
Recent filing periods:
Ownership snapshot
Top reported holders of RBBN - Ribbon Communications Inc. - Common Stock (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
1/15
Latest evidence
30 Sep 2025
13D/G
13F
3/4/5
Lead comparable stake: 5%
14 rows are not safely comparable across share classes.
13D/G row: PARADIGM CAPITAL MANAGEMENT INC/NY
Showing 1-6 of 15 holder rows.
Quick read
PARADIGM CAPITAL MANAGEMENT INC/NY leads the comparable SEC ownership view at 5%.
1 of 15 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 1
PARADIGM CAPITAL MANAGEMENT INC/NY
5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| PARADIGM CAPITAL MANAGEMENT INC/NY |
13D/G
13F
Company
|
5%
Reported 13D/G
· 30 Jun 2025
|
$36,567,476
8,748,200 shares
|
$0 | 30 Jun 2025 |
| JPMORGAN CHASE & CO |
13F
3/4/5
Company · 10%+ Owner
|
—
denominator unverified
|
$197,742,791
52,037,577 shares
|
— | 30 Sep 2025 |
| Swarth Investments Ltd. |
3/4/5
10%+ Owner
|
—
mixed-class rows
|
—
446,645 shares
mixed-class rows
|
— | 30 Mar 2023 |
| BlackRock, Inc. |
13F
Company
|
—
denominator unverified
|
$29,255,459
7,698,805 shares
|
— | 30 Sep 2025 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$29,226,066
7,691,070 shares
|
— | 30 Sep 2025 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
—
denominator unverified
|
$24,872,120
6,545,535 shares
|
— | 30 Sep 2025 |
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.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
153
Shares
129,650,493
Rows available
153
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
151
Q4 2025 holders
153
Holder diff
2
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend