SONUS NETWORKS INC

CUSIP: 835916107 Class: CMN

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q4 2014
Shares 7,103,822 Value ($000) $28,203 Avg Close — Range —
Q3 2014
Shares 7,614,643 Value ($000) $26,043 Avg Close — Range —
Q2 2014
Shares 8,140,790 Value ($000) $29,225 Avg Close — Range —
Q1 2014
Shares 7,962,236 Value ($000) $26,832 Avg Close — Range —
Q4 2013
Shares 8,088,256 Value ($000) $25,478 Avg Close — Range —
Q3 2013
Shares 7,792,562 Value ($000) $26,339 Avg Close — Range —
Q2 2013
Shares 7,478,059 Value ($000) $22,509 Avg Close — Range —