PLANO, TX
RIBBON COMMUNICATIONS INC.RBBN— Latest position per institution from SEC 13F filings
15
Institutional holders
139.95M
Total shares held
348.42M
Estimated value
7M
Avg. position size
JPMORGAN CHASE & CO
CIK 19617
Shares
52.04M
Value
149.87M
Filed
Dec 31, 2025
NEUBERGER BERMAN GROUP LLC
CIK 1465109
Shares
17.36M
Value
33.20M
Filed
Mar 31, 2026
PARADIGM CAPITAL MANAGEMENT INC/NY
CIK 1037792
Shares
8.04M
Value
17.04M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
7.83M
Value
22.56M
Filed
Dec 31, 2025
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
7.38M
Value
24.29M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
6.72M
Value
14.25M
Filed
Mar 31, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
6.35M
Value
13.46M
Filed
Mar 31, 2026
FIRST TRUST ADVISORS LP
CIK 1125816
Shares
6.04M
Value
16.84M
Filed
Dec 31, 2022
ROYCE & ASSOCIATES LP
CIK 906304
Shares
4.88M
Value
10.35M
Filed
Mar 31, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
4.22M
Value
8.94M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
3.34M
Value
7.07M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
2.41M
Value
5.12M
Filed
Mar 31, 2026
CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD.
CIK 1596800
Shares
2.09M
Value
4.43M
Filed
Mar 31, 2026
PUTNAM INVESTMENTS LLC
CIK 1421578
Shares
1.99M
Value
5.77M
Filed
Dec 31, 2023
STATE STREET CORP
CIK 93751
Shares
1.91M
Value
4.05M
Filed
Mar 31, 2026
D. E. SHAW & CO., INC.
CIK 1009207
Shares
1.54M
Value
3.26M
Filed
Mar 31, 2026
CVI HOLDINGS, LLC
CIK 1728194
Shares
1.52M
Value
3.37K
Filed
Sep 30, 2022
AMH EQUITY LTD
CIK 1600535
Shares
1.44M
Value
4.92M
Filed
Mar 31, 2023
ACADIAN ASSET MANAGEMENT LLC
CIK 916542
Shares
1.44M
Value
3.04K
Filed
Mar 31, 2026
FIRST WILSHIRE SECURITIES MANAGEMENT INC
CIK 732847
Shares
1.41M
Value
2.98M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | JPMORGAN CHASE & CO | 19617 | 52.04M | 149.87M | Dec 31, 2025 |
| 2 | NEUBERGER BERMAN GROUP LLC | 1465109 | 17.36M | 33.20M | Mar 31, 2026 |
| 3 | PARADIGM CAPITAL MANAGEMENT INC/NY | 1037792 | 8.04M | 17.04M | Mar 31, 2026 |
| 4 | VANGUARD GROUP INC | 102909 | 7.83M | 22.56M | Dec 31, 2025 |
| 5 | BLACKROCK FINANCE, INC. | 1364742 | 7.38M | 24.29M | Jun 30, 2024 |
| 6 | BLACKROCK, INC. | 2012383 | 6.72M | 14.25M | Mar 31, 2026 |
| 7 | DIMENSIONAL FUND ADVISORS LP | 354204 | 6.35M | 13.46M | Mar 31, 2026 |
| 8 | FIRST TRUST ADVISORS LP | 1125816 | 6.04M | 16.84M | Dec 31, 2022 |
| 9 | ROYCE & ASSOCIATES LP | 906304 | 4.88M | 10.35M | Mar 31, 2026 |
| 10 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 4.22M | 8.94M | Mar 31, 2026 |
| 11 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 3.34M | 7.07M | Mar 31, 2026 |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 2.41M | 5.12M | Mar 31, 2026 |
| 13 | CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. | 1596800 | 2.09M | 4.43M | Mar 31, 2026 |
| 14 | PUTNAM INVESTMENTS LLC | 1421578 | 1.99M | 5.77M | Dec 31, 2023 |
| 15 | STATE STREET CORP | 93751 | 1.91M | 4.05M | Mar 31, 2026 |
| 16 | D. E. SHAW & CO., INC. | 1009207 | 1.54M | 3.26M | Mar 31, 2026 |
| 17 | CVI HOLDINGS, LLC | 1728194 | 1.52M | 3.37K | Sep 30, 2022 |
| 18 | AMH EQUITY LTD | 1600535 | 1.44M | 4.92M | Mar 31, 2023 |
| 19 | ACADIAN ASSET MANAGEMENT LLC | 916542 | 1.44M | 3.04K | Mar 31, 2026 |
| 20 | FIRST WILSHIRE SECURITIES MANAGEMENT INC | 732847 | 1.41M | 2.98M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.