Insider Trading History of Kostelnik Robert J.

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Kostelnik Robert J. since year 2005. The trader's CIK number is 1507989. At the time of the last reporting, Kostelnik Robert J. was the Director of Hollyfrontier Corp . (stock ticker symbol HFC). See this page for all insider trading activities at Hollyfrontier Corp .

Stock purchases, sales, and option exercises reported by insider Kostelnik Robert J. since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2018-12-03 HFC Hollyfrontier Corp Sale 811 61.05 49,511
2018-11-30 HFC Hollyfrontier Corp Sale 689 62.29 42,917

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Kostelnik Robert J. (Director of Hollyfrontier Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.