MAST THERAPEUTICS INC

CUSIP: 576314108 Class: COM

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q1 2017
Shares 4,190,038 Value ($000) $518 Avg Close — Range —
Q4 2016
Shares 3,028,652 Value ($000) $263 Avg Close — Range —
Q3 2016
Shares 7,552,722 Value ($000) $830 Avg Close — Range —
Q2 2016
Shares 5,996,047 Value ($000) $2,818 Avg Close — Range —
Q1 2016
Shares 5,072,540 Value ($000) $1,390 Avg Close — Range —
Q4 2015
Shares 4,353,424 Value ($000) $1,830 Avg Close — Range —
Q3 2015
Shares 4,106,264 Value ($000) $2,382 Avg Close — Range —
Q2 2015
Shares 4,062,609 Value ($000) $1,991 Avg Close — Range —
Q1 2015
Shares 3,695,062 Value ($000) $1,792 Avg Close — Range —
Q4 2014
Shares 3,382,483 Value ($000) $1,894 Avg Close — Range —
Q3 2014
Shares 2,810,791 Value ($000) $1,566 Avg Close — Range —
Q2 2014
Shares 2,619,137 Value ($000) $1,647 Avg Close — Range —
Q1 2014
Shares 2,610,237 Value ($000) $1,775 Avg Close — Range —
Q4 2013
Shares 1,774,744 Value ($000) $821 Avg Close — Range —
Q3 2013
Shares 1,776,160 Value ($000) $780 Avg Close — Range —
Q2 2013
Shares 1,700,681 Value ($000) $730 Avg Close — Range —