RIBBON COMMUNICATIONS INC's ticker is RBBN and the CUSIP is 762544104. A total of 118 filers reported holding RIBBON COMMUNICATIONS INC in Q4 2018. The put-call ratio across all filers is 10.22 and the average weighting 0.1%.
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Ophir Asset Management Pty Ltd | 2,699,526 | $20,543,000 | 3.61% |
| PARADIGM CAPITAL MANAGEMENT INC/NY | 8,424,400 | $64,110,000 | 3.08% |
| Herald Investment Management Ltd | 1,088,000 | $8,268,000 | 1.35% |
| Zebra Capital Management LLC | 76,540 | $582,000 | 0.68% |
| Cowen Prime Advisors LLC | 140,719 | $1,071,000 | 0.39% |
| Cowen Prime Services LLC | 140,719 | $1,071,000 | 0.39% |
| Hillsdale Investment Management Inc. | 578,800 | $4,404,000 | 0.35% |
| HUSSMAN STRATEGIC ADVISORS, INC. | 186,000 | $1,415,000 | 0.29% |
| GLOBEFLEX CAPITAL L P | 197,647 | $1,504,000 | 0.27% |
| Pacific Ridge Capital Partners, LLC | 134,600 | $1,024,000 | 0.18% |