SONUS NETWORKS INC

CUSIP: 835916107 Class: CMN

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

Note: Option positions (PUT/CALL) are excluded.

Q4 2014
Shares 917,021 Value ($000) $3,641 Avg Close — Range —
Q3 2014
Shares 1,709,931 Value ($000) $5,848 Avg Close — Range —
Q2 2014
Shares 1,428,275 Value ($000) $5,128 Avg Close — Range —
Q1 2014
Shares 1,573,389 Value ($000) $5,302 Avg Close — Range —