ECO STIM ENERGY SOLUTIONS IN

CUSIP: 27888D101 Class: COM

TWO SIGMA SECURITIES, LLC's Holding History (CIK: 0001450144)

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

Q4 2018
Shares 28,403 Value ($000) $2 Avg Close — Range —
Q4 2017
Shares 11,603 Value ($000) $15 Avg Close — Range —