RIBBON COMMUNICATIONS INC's ticker is RBBN and the CUSIP is 762544104. A total of 143 filers reported holding RIBBON COMMUNICATIONS INC in Q1 2021. The put-call ratio across all filers is 5.43 and the average weighting 0.1%.
Quarter-by-quarter ownership
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| PARADIGM CAPITAL MANAGEMENT INC/NY | 10,312,922 | $31,351,000 | 2.13% |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC | 1,445,195 | $4,393,000 | 1.64% |
| Zebra Capital Management LLC | 94,689 | $288,000 | 0.85% |
| Herald Investment Management Ltd | 1,088,000 | $3,307,000 | 0.77% |
| Cowen Prime Advisors LLC | 131,719 | $400,000 | 0.23% |
| GLOBEFLEX CAPITAL L P | 197,647 | $601,000 | 0.15% |
| Penserra Capital Management LLC | 1,621,054 | $4,928,000 | 0.13% |
| GSA CAPITAL PARTNERS LLP | 286,571 | $871,000 | 0.13% |
| Pacific Ridge Capital Partners, LLC | 139,570 | $424,000 | 0.10% |
| Meridian Wealth Advisors, LLC | 64,866 | $197,000 | 0.05% |