MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

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

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

Q2 2017
Shares 258,877 Value ($000) $322 Avg Close — Range —
Q1 2017
Shares 438,888 Value ($000) $1,352 Avg Close — Range —
Q4 2016
Shares 416,487 Value ($000) $1,700 Avg Close — Range —
Q3 2016
Shares 396,313 Value ($000) $2,517 Avg Close — Range —
Q2 2016
Shares 438,355 Value ($000) $2,363 Avg Close — Range —
Q1 2016
Shares 430,069 Value ($000) $3,600 Avg Close — Range —
Q4 2015
Shares 408,850 Value ($000) $3,230 Avg Close — Range —
Q3 2015
Shares 331,923 Value ($000) $2,825 Avg Close — Range —
Q2 2015
Shares 322,859 Value ($000) $3,993 Avg Close — Range —
Q1 2015
Shares 301,950 Value ($000) $3,588 Avg Close — Range —
Q4 2014
Shares 288,299 Value ($000) $3,258 Avg Close — Range —
Q3 2014
Shares 272,391 Value ($000) $2,392 Avg Close — Range —
Q2 2014
Shares 267,362 Value ($000) $1,950 Avg Close — Range —
Q1 2014
Shares 246,056 Value ($000) $1,241 Avg Close — Range —
Q4 2013
Shares 240,116 Value ($000) $1,283 Avg Close — Range —
Q3 2013
Shares 219,896 Value ($000) $858 Avg Close — Range —
Q2 2013
Shares 164,311 Value ($000) $1,138 Avg Close — Range —