MAST THERAPEUTICS INC

CUSIP: 576314108 Class: COM

SHEPHERD KAPLAN KROCHUK, LLC's Holding History (CIK: 0001218583)

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

Q2 2016
Shares 449,084 Value ($000) $211 Avg Close — Range —
Q1 2016
Shares 581,886 Value ($000) $159 Avg Close — Range —
Q4 2015
Shares 581,886 Value ($000) $245 Avg Close — Range —
Q3 2015
Shares 581,886 Value ($000) $337 Avg Close — Range —
Q2 2015
Shares 581,886 Value ($000) $285 Avg Close — Range —
Q1 2015
Shares 581,886 Value ($000) $282 Avg Close — Range —
Q4 2014
Shares 581,886 Value ($000) $326 Avg Close — Range —
Q3 2014
Shares 581,886 Value ($000) $324 Avg Close — Range —
Q2 2014
Shares 512,476 Value ($000) $322 Avg Close — Range —
Q1 2014
Shares 512,476 Value ($000) $348 Avg Close — Range —
Q4 2013
Shares 532,776 Value ($000) $246 Avg Close — Range —
Q3 2013
Shares 602,776 Value ($000) $265 Avg Close — Range —
Q2 2013
Shares 894,401 Value ($000) $384 Avg Close — Range —