MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q2 2017
Shares 227,314 Value ($000) $282 Avg Close — Range —
Q1 2017
Shares 240,414 Value ($000) $740 Avg Close — Range —
Q4 2016
Shares 251,414 Value ($000) $1,026 Avg Close — Range —
Q3 2016
Shares 258,314 Value ($000) $1,640 Avg Close — Range —
Q2 2016
Shares 255,914 Value ($000) $1,379 Avg Close — Range —
Q1 2016
Shares 244,830 Value ($000) $2,049 Avg Close — Range —
Q4 2015
Shares 214,167 Value ($000) $1,692 Avg Close — Range —
Q3 2015
Shares 200,645 Value ($000) $1,707 Avg Close — Range —
Q2 2015
Shares 200,945 Value ($000) $2,485 Avg Close — Range —
Q1 2015
Shares 179,947 Value ($000) $2,138 Avg Close — Range —
Q4 2014
Shares 181,947 Value ($000) $2,056 Avg Close — Range —
Q3 2014
Shares 181,172 Value ($000) $1,591 Avg Close — Range —
Q2 2014
Shares 179,243 Value ($000) $1,307 Avg Close — Range —
Q1 2014
Shares 174,943 Value ($000) $882 Avg Close — Range —
Q4 2013
Shares 174,943 Value ($000) $934 Avg Close — Range —
Q3 2013
Shares 172,843 Value ($000) $657 Avg Close — Range —
Q2 2013
Shares 158,343 Value ($000) $1,066 Avg Close — Range —
Q1 2013
Shares 26,387 Value ($000) $161 Avg Close — Range —