Parallax Volatility Advisers, L.P. - SONUS NETWORKS INC ownership

SONUS NETWORKS INC's ticker is SONSXXXX and the CUSIP is 835916503. A total of 123 filers reported holding SONUS NETWORKS INC in Q4 2015. The put-call ratio across all filers is 0.70 and the average weighting 0.1%.

Quarter-by-quarter ownership
Parallax Volatility Advisers, L.P. ownership history of SONUS NETWORKS INC
ValueSharesWeighting
Q1 2017$26,000
+160.0%
4,000
+135.3%
0.00%
Q3 2015$10,000
-95.8%
1,700
-95.0%
0.00%
Q2 2015$236,000
+1211.1%
34,074
+1511.8%
0.00%
Q1 2015$18,0002,1140.00%
Other shareholders
SONUS NETWORKS INC shareholders Q4 2015
NameSharesValueWeighting ↓
Empire Capital Management, L.L.C. 874,944$6,895,0003.59%
HARBER ASSET MANAGEMENT LLC 419,011$3,302,0002.50%
Horrell Capital Management, Inc. 400,500$3,156,0001.36%
IRONWOOD INVESTMENT MANAGEMENT LLC 410,790$3,237,0000.60%
Walthausen & Co., LLC 937,978$7,391,0000.54%
FNY Managed Accounts LLC 45,000$354,600,0000.29%
Integre Asset Management, LLC 176,377$1,390,0000.28%
Granite Investment Partners, LLC 386,816$3,048,0000.26%
STONERIDGE INVESTMENT PARTNERS LLC 277,187$2,184,0000.26%
Cowen Prime Services LLC 73,048$576,0000.24%
View complete list of SONUS NETWORKS INC shareholders