MAST THERAPEUTICS INC

CUSIP: 576314108 Class: COM

GEODE CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001214717)

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

Q1 2017
Shares 1,012,559 Value ($000) $125 Avg Close — Range —
Q4 2016
Shares 1,012,559 Value ($000) $87 Avg Close — Range —
Q3 2016
Shares 1,012,559 Value ($000) $111 Avg Close — Range —
Q2 2016
Shares 1,012,559 Value ($000) $475 Avg Close — Range —
Q1 2016
Shares 678,116 Value ($000) $185 Avg Close — Range —
Q4 2015
Shares 678,116 Value ($000) $285 Avg Close — Range —
Q3 2015
Shares 678,116 Value ($000) $393 Avg Close — Range —
Q2 2015
Shares 678,116 Value ($000) $332 Avg Close — Range —
Q1 2015
Shares 560,868 Value ($000) $272 Avg Close — Range —
Q4 2014
Shares 560,868 Value ($000) $314 Avg Close — Range —
Q3 2014
Shares 560,868 Value ($000) $312 Avg Close — Range —
Q2 2014
Shares 560,868 Value ($000) $352 Avg Close — Range —
Q1 2014
Shares 560,868 Value ($000) $381 Avg Close — Range —
Q4 2013
Shares 192,325 Value ($000) $88 Avg Close — Range —
Q3 2013
Shares 192,325 Value ($000) $84 Avg Close — Range —
Q2 2013
Shares 140,873 Value ($000) $60 Avg Close — Range —