SENTINEL ENERGY SVCS INC

CUSIP: G8062D128 Class: UNIT

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q3 2018
Shares 407,312 Value ($000) $407 Avg Close — Range —
Q2 2018
Shares 407,312 Value ($000) $4,110 Avg Close — Range —
Q1 2018
Shares 407,312 Value ($000) $4,041 Avg Close — Range —
Q4 2017
Shares 400,000 Value ($000) $3,988 Avg Close — Range —