SENTINEL ENERGY SVCS INC

CUSIP: 81728P204 Class: UNIT 11/02/2022

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q3 2019
Shares 42,801 Value ($000) $445 Avg Close — Range —
Q2 2019
Shares 39,631 Value ($000) $406 Avg Close — Range —
Q1 2019
Shares 35,097 Value ($000) $359 Avg Close — Range —