DORCHESTER MINERALS LP

Ticker: DMLP CUSIP: 25820R105 Class: COM UNIT

THOMPSON SIEGEL & WALMSLEY LLC's Holding History (CIK: 0001008322)

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

Q3 2016
Shares 1,300 Value ($000) $20 Avg Close — Range —
Q2 2016
Shares 1,300 Value ($000) $19 Avg Close — Range —
Q1 2016
Shares 1,300 Value ($000) $15 Avg Close — Range —
Q4 2015
Shares 2,500 Value ($000) $25 Avg Close — Range —
Q3 2015
Shares 2,500 Value ($000) $36 Avg Close — Range —
Q2 2015
Shares 2,500 Value ($000) $53 Avg Close — Range —
Q1 2015
Shares 2,500 Value ($000) $57 Avg Close — Range —
Q4 2014
Shares 2,500 Value ($000) $64 Avg Close — Range —
Q3 2014
Shares 2,800 Value ($000) $83 Avg Close — Range —
Q2 2014
Shares 2,800 Value ($000) $86 Avg Close — Range —
Q1 2014
Shares 3,300 Value ($000) $86 Avg Close — Range —
Q4 2013
Shares 3,300 Value ($000) $86 Avg Close — Range —
Q3 2013
Shares 3,300 Value ($000) $79 Avg Close — Range —
Q2 2013
Shares 4,800 Value ($000) $118 Avg Close — Range —