PLANO, TX
RIBBON COMMUNICATIONS INC.RBBN— Latest position per institution from SEC 13F filings
15
Institutional holders
132.27M
Total shares held
308.88M
Estimated value
6.61M
Avg. position size
JPMORGAN CHASE & CO
CIK 19617
Shares
52.04M
Value
115.54M
Filed
Jun 30, 2026
NEUBERGER BERMAN GROUP LLC
CIK 1465109
Shares
18.31M
Value
38.67M
Filed
Jun 30, 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
7.15M
Value
16.72M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
6.29M
Value
14.71M
Filed
Jun 30, 2026
ROYCE & ASSOCIATES LP
CIK 906304
Shares
5.09M
Value
11.91M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
3.93M
Value
9.19M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
3.51M
Value
8.22M
Filed
Jun 30, 2026
PARADIGM CAPITAL MANAGEMENT INC/NY
CIK 1037792
Shares
3.04M
Value
7.11M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
2.49M
Value
5.82M
Filed
Jun 30, 2026
CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD.
CIK 1596800
Shares
2.21M
Value
5.18M
Filed
Jun 30, 2026
PUTNAM INVESTMENTS LLC
CIK 1421578
Shares
1.99M
Value
5.77M
Filed
Dec 31, 2023
STATE STREET CORP
CIK 93751
Shares
1.93M
Value
4.52M
Filed
Jun 30, 2026
D. E. SHAW & CO., INC.
CIK 1009207
Shares
1.79M
Value
4.19M
Filed
Jun 30, 2026
ACADIAN ASSET MANAGEMENT LLC
CIK 916542
Shares
1.77M
Value
4.13K
Filed
Jun 30, 2026
AMH EQUITY LTD
CIK 1600535
Shares
1.44M
Value
4.92M
Filed
Mar 31, 2023
AQR CAPITAL MANAGEMENT LLC
CIK 1167557
Shares
1.41M
Value
3.30M
Filed
Jun 30, 2026
FIRST WILSHIRE SECURITIES MANAGEMENT INC
CIK 732847
Shares
1.40M
Value
3.29M
Filed
Jun 30, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
1.27M
Value
2.97M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | JPMORGAN CHASE & CO | 19617 | 52.04M | 115.54M | Jun 30, 2026 |
| 2 | NEUBERGER BERMAN GROUP LLC | 1465109 | 18.31M | 38.67M | Jun 30, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 7.83M | 22.56M | Dec 31, 2025 |
| 4 | BLACKROCK FINANCE, INC. | 1364742 | 7.38M | 24.29M | Jun 30, 2024 |
| 5 | BLACKROCK, INC. | 2012383 | 7.15M | 16.72M | Jun 30, 2026 |
| 6 | DIMENSIONAL FUND ADVISORS LP | 354204 | 6.29M | 14.71M | Jun 30, 2026 |
| 7 | ROYCE & ASSOCIATES LP | 906304 | 5.09M | 11.91M | Jun 30, 2026 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 3.93M | 9.19M | Jun 30, 2026 |
| 9 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 3.51M | 8.22M | Jun 30, 2026 |
| 10 | PARADIGM CAPITAL MANAGEMENT INC/NY | 1037792 | 3.04M | 7.11M | Jun 30, 2026 |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 2.49M | 5.82M | Jun 30, 2026 |
| 12 | CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. | 1596800 | 2.21M | 5.18M | Jun 30, 2026 |
| 13 | PUTNAM INVESTMENTS LLC | 1421578 | 1.99M | 5.77M | Dec 31, 2023 |
| 14 | STATE STREET CORP | 93751 | 1.93M | 4.52M | Jun 30, 2026 |
| 15 | D. E. SHAW & CO., INC. | 1009207 | 1.79M | 4.19M | Jun 30, 2026 |
| 16 | ACADIAN ASSET MANAGEMENT LLC | 916542 | 1.77M | 4.13K | Jun 30, 2026 |
| 17 | AMH EQUITY LTD | 1600535 | 1.44M | 4.92M | Mar 31, 2023 |
| 18 | AQR CAPITAL MANAGEMENT LLC | 1167557 | 1.41M | 3.30M | Jun 30, 2026 |
| 19 | FIRST WILSHIRE SECURITIES MANAGEMENT INC | 732847 | 1.40M | 3.29M | Jun 30, 2026 |
| 20 | CITADEL ADVISORS LLC | 1423053 | 1.27M | 2.97M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.