WELLINGTON MANAGEMENT GROUP LLP - SONUS NETWORKS INC ownership

SONUS NETWORKS INC's ticker is SONSXXXX and the CUSIP is 835916107. A total of 149 filers reported holding SONUS NETWORKS INC in Q2 2014. The put-call ratio across all filers is 1.57 and the average weighting 0.2%.

Quarter-by-quarter ownership
WELLINGTON MANAGEMENT GROUP LLP ownership history of SONUS NETWORKS INC
ValueSharesWeighting
Q4 2014$86,569,000
+100.0%
21,805,948
+72.3%
0.02%
+91.7%
Q3 2014$43,286,000
+1678.4%
12,656,638
+1766.4%
0.01%
+1100.0%
Q2 2014$2,434,000678,1490.00%
Other shareholders
SONUS NETWORKS INC shareholders Q2 2014
NameSharesValueWeighting ↓
Empire Capital Management, L.L.C. 26,435,000$83,270,00011.35%
CENTRAL SECURITIES CORP 3,000,000$9,450,0002.04%
IRONWOOD INVESTMENT MANAGEMENT LLC 2,241,887$7,062,0000.98%
Robertson Opportunity Capital, LLC 326,600$1,029,0000.70%
Grandeur Peak Global Advisors, LLC 811,100$2,555,0000.68%
G2 Investment Partners Management LLC 573,468$1,806,0000.66%
QUENTEC ASSET MANAGEMENT LLC 552,100$1,739,0000.52%
Cowen Prime Services LLC 267,300$842,0000.32%
Leonard Capital Management, Inc. 146,141$460,0000.18%
COLUMBUS CIRCLE INVESTORS 8,262,134$26,026,0000.18%
View complete list of SONUS NETWORKS INC shareholders