SONUS NETWORKS INC's ticker is SONSXXXX and the CUSIP is 835916107. A total of 6 filers reported holding SONUS NETWORKS INC in Q1 2015. The put-call ratio across all filers is - and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2014 | $119,000 | – | 30,000 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Empire Capital Management, L.L.C. | 38,595,000 | $116,171,000 | 14.01% |
| CENTRAL SECURITIES CORP | 3,000,000 | $9,030,000 | 2.37% |
| Robertson Opportunity Capital, LLC | 541,200 | $1,629,000 | 1.25% |
| IRONWOOD INVESTMENT MANAGEMENT LLC | 2,175,254 | $6,548,000 | 1.16% |
| Montibus Capital Management LLC | 2,091,878 | $6,296,552,000 | 0.80% |
| Grandeur Peak Global Advisors, LLC | 485,900 | $1,463,000 | 0.56% |
| Contour Asset Management LLC | 2,480,000 | $7,465,000 | 0.52% |
| Roc Capital Management, L.P. | 46,668 | $140,000 | 0.44% |
| ARTIS CAPITAL MANAGEMENT, L.P. | 160,672 | $484,000 | 0.41% |
| Cowen Prime Services LLC | 262,300 | $790,000 | 0.33% |