Insider Activity of BOYLAN JOHN P
The largest purchase of all time was on 2012-01-05 and amounted to 120000 shares of Houston American Energy Corp. for $1.55M.
The largest sale of all time was on 2007-07-20 and amounted to 4000 shares of Houston American Energy Corp. for $22,800.
Biography of BOYLAN JOHN P
No biography is available at this moment.