MAST THERAPEUTICS INC

CUSIP: 576314108 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q1 2017
Shares 324,827 Value ($000) $40 Avg Close — Range —
Q4 2016
Shares 324,827 Value ($000) $28 Avg Close — Range —
Q3 2016
Shares 318,323 Value ($000) $35 Avg Close — Range —
Q2 2016
Shares 206,970 Value ($000) $97 Avg Close — Range —
Q1 2016
Shares 102,959 Value ($000) $28 Avg Close — Range —
Q4 2015
Shares 102,959 Value ($000) $43 Avg Close — Range —
Q3 2015
Shares 102,959 Value ($000) $60 Avg Close — Range —
Q2 2015
Shares 102,959 Value ($000) $50 Avg Close — Range —
Q1 2015
Shares 129,547 Value ($000) $63 Avg Close — Range —
Q4 2014
Shares 129,547 Value ($000) $73 Avg Close — Range —
Q3 2014
Shares 129,547 Value ($000) $72 Avg Close — Range —
Q2 2014
Shares 129,547 Value ($000) $81 Avg Close — Range —
Q1 2014
Shares 129,547 Value ($000) $88 Avg Close — Range —
Q4 2013
Shares 86,723 Value ($000) $40 Avg Close — Range —
Q3 2013
Shares 86,723 Value ($000) $38 Avg Close — Range —
Q2 2013
Shares 86,723 Value ($000) $37 Avg Close — Range —