QUESTAR CORP

CUSIP: 748356102 Class: COM

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q1 2016
Shares 523 Value ($000) $12 Avg Close — Range —
Q2 2015
Shares 76 Value ($000) $1 Avg Close — Range —
Q1 2015
Shares 978 Value ($000) $23 Avg Close — Range —