SHAPIRO ROBERT N - SONUS NETWORKS INC ownership

SONUS NETWORKS INC's ticker is SONSXXXX and the CUSIP is 835916107. A total of 136 filers reported holding SONUS NETWORKS INC in Q3 2013. The put-call ratio across all filers is 0.11 and the average weighting 0.1%.

Quarter-by-quarter ownership
SHAPIRO ROBERT N ownership history of SONUS NETWORKS INC
ValueSharesWeighting
Q1 2014$10,0000.0%3,1000.0%0.00%0.0%
Q4 2013$10,0000.0%3,1000.0%0.00%0.0%
Q3 2013$10,000
+11.1%
3,1000.0%0.00%0.0%
Q2 2013$9,0003,1000.00%
Other shareholders
SONUS NETWORKS INC shareholders Q3 2013
NameSharesValueWeighting ↓
Empire Capital Management, L.L.C. 26,475,000$89,221,00010.64%
Archon Capital Management LLC 4,648,400$15,665,0004.52%
CENTRAL SECURITIES CORP 3,000,000$10,110,0002.19%
Kendall Square Capital, LLC 309,800$1,044,0001.35%
BTG Pactual Global Asset Management Ltd 1,780,000$5,999,0001.33%
HARBER ASSET MANAGEMENT LLC 291,000$981,0001.21%
Hilltop Park Associates LLC 300,000$1,011,0001.16%
IRONWOOD INVESTMENT MANAGEMENT LLC 2,162,927$7,289,0001.06%
Grandeur Peak Global Advisors, LLC 975,100$3,286,0000.78%
G2 Investment Partners Management LLC 332,413$1,120,0000.42%
View complete list of SONUS NETWORKS INC shareholders