SONUS NETWORKS INC

CUSIP: 835916107 Class: CMN

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q4 2014
Shares 8,039 Value ($000) $32 Avg Close — Range —
Q3 2014
Shares 600 Value ($000) $2 Avg Close — Range —
Q2 2014
Shares 8,639 Value ($000) $31 Avg Close — Range —
Q1 2014
Shares 11,843 Value ($000) $39 Avg Close — Range —
Q4 2013
Shares 1,217 Value ($000) $4 Avg Close — Range —
Q3 2013
Shares 6,446 Value ($000) $22 Avg Close — Range —