ECO STIM ENERGY SOLUTIONS IN

CUSIP: 27888D101 Class: COM

B. Riley Financial, Inc.'s Holding History (CIK: 0001464790)

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

Q4 2018
Shares 1,093,129 Value ($000) $71 Avg Close — Range —
Q2 2018
Shares 193,787 Value ($000) $126 Avg Close — Range —
Q1 2018
Shares 193,702 Value ($000) $184 Avg Close — Range —
Q4 2017
Shares 193,702 Value ($000) $244 Avg Close — Range —
Q3 2017
Shares 93,075 Value ($000) $143 Avg Close — Range —