Which hedge funds own RBBN? RIBBON COMMUNICATIONS INC, Q2 2026 13F holders
5 of the hedge funds tracked by WhaleCreep disclosed a position in RBBN (RIBBON COMMUNICATIONS INC) in their Q2 2026 13F filings, worth $10.7m in total. The largest holder by portfolio weight is D. E. Shaw & Co at 0.0% of its book. 1 manager opened a new position this quarter: Brevan Howard Capital Management.
5tracked managers holding
1opened this quarter
0exited this quarter
Which hedge funds hold RBBN? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| D. E. Shaw & Co | Q2 2026 | 0.0% | $4.2m | 1,790,375 | 16% | added |
| Citadel Advisors | Q2 2026 | 0.0% | $2.9m | 1,241,200 | 116% | added |
| Marshall Wace | Q2 2026 | 0.0% | $1.9m | 814,132 | 6% | added |
| Millennium Management | Q2 2026 | 0.0% | $1.6m | 698,458 | 42% | added |
| Brevan Howard Capital Management | Q2 2026 | 0.0% | $61.2k | 26,154 | – | new |
How has hedge fund ownership of RBBN changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 5 | $10.7m |
| Q1 2026 | 4 | $7.2m |
| Q3 2025 | 2 | $479.0k |
| Q2 2025 | 2 | $632.3k |
| Q1 2025 | 1 | $567.7k |
| Q4 2024 | 1 | $58.7k |
| Q2 2024 | 1 | $247.4k |
| Q4 2023 | 2 | $85.0k |
| Q3 2023 | 2 | $125.7k |
| Q2 2023 | 2 | $736.6k |
| Q1 2023 | 2 | $376.0k |
| Q4 2022 | 2 | $574.0k |
| Q3 2022 | 2 | $819.0k |
| Q2 2022 | 2 | $633.0k |
| Q1 2022 | 3 | $698.0k |
| Q4 2021 | 1 | $353.0k |
Counts every tracked manager that disclosed RBBN in that quarter's filing, including managers that have since stopped filing.