First, it was his son. Now two of chief executive Herbjorn Hansson's lieutenants are stocking up on Nordic American Tankers shares.

On Wednesday, the New York-listed suezmax owner's head of chartering Erik Tomstad bought 84,760 shares for $3.37.

Tomstad's buy was followed by finance manager Alexander Kihle purchasing 72,000 shares at $3.54 Thursday.

Nordic American Tankers shares opened Thursday at $3.38,