SONUS NETWORKS INC

CUSIP: 835916107 Class: CMN

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q4 2014
Shares 404,047 Value ($000) $1,604 Avg Close — Range —
Q3 2014
Shares 404,047 Value ($000) $1,382 Avg Close — Range —
Q2 2014
Shares 429,947 Value ($000) $1,544 Avg Close — Range —
Q1 2014
Shares 403,069 Value ($000) $1,358 Avg Close — Range —
Q4 2013
Shares 397,221 Value ($000) $1,251 Avg Close — Range —
Q3 2013
Shares 415,021 Value ($000) $1,403 Avg Close — Range —
Q2 2013
Shares 441,469 Value ($000) $1,329 Avg Close — Range —