HOLLYFRONTIER CORP

CUSIP: 436106108 Class: COM

Yorktown Management & Research Co Inc's Holding History (CIK: 0001313559)

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

Q2 2015
Shares 10,000 Value ($000) $427 Avg Close — Range —
Q1 2015
Shares 10,000 Value ($000) $403 Avg Close — Range —
Q4 2014
Shares 22,000 Value ($000) $825 Avg Close — Range —
Q3 2014
Shares 22,000 Value ($000) $961 Avg Close — Range —
Q2 2014
Shares 22,000 Value ($000) $961 Avg Close — Range —
Q1 2014
Shares 22,000 Value ($000) $1,047 Avg Close — Range —
Q4 2013
Shares 22,000 Value ($000) $1,093 Avg Close — Range —
Q3 2013
Shares 22,000 Value ($000) $926 Avg Close — Range —