ECO STIM ENERGY SOLUTIONS IN

CUSIP: 27888D101 Class: COM

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

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

Q4 2018
Shares 126,517 Value ($000) $8 Avg Close — Range —
Q3 2018
Shares 1,075,395 Value ($000) $302 Avg Close — Range —
Q2 2018
Shares 1,088,745 Value ($000) $708 Avg Close — Range —
Q1 2018
Shares 738,489 Value ($000) $702 Avg Close — Range —
Q4 2017
Shares 673,398 Value ($000) $849 Avg Close — Range —
Q3 2017
Shares 564,090 Value ($000) $868 Avg Close — Range —
Q2 2017
Shares 512,551 Value ($000) $641 Avg Close — Range —
Q1 2017
Shares 485,979 Value ($000) $569 Avg Close — Range —
Q4 2016
Shares 84,417 Value ($000) $83 Avg Close — Range —
Q3 2016
Shares 83,493 Value ($000) $178 Avg Close — Range —
Q2 2016
Shares 82,393 Value ($000) $239 Avg Close — Range —
Q1 2016
Shares 81,493 Value ($000) $208 Avg Close — Range —
Q4 2015
Shares 80,993 Value ($000) $253 Avg Close — Range —
Q3 2015
Shares 79,693 Value ($000) $265 Avg Close — Range —