SONUS NETWORKS INC

CUSIP: 835916107 Class: CMN

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q4 2014
Shares 718,696 Value ($000) $2,854 Avg Close — Range —
Q3 2014
Shares 669,573 Value ($000) $2,290 Avg Close — Range —
Q2 2014
Shares 655,956 Value ($000) $2,355 Avg Close — Range —
Q1 2014
Shares 674,585 Value ($000) $2,274 Avg Close — Range —
Q4 2013
Shares 653,293 Value ($000) $2,058 Avg Close — Range —
Q3 2013
Shares 591,321 Value ($000) $2,041 Avg Close — Range —
Q2 2013
Shares 567,273 Value ($000) $1,708 Avg Close — Range —