Caledonia Mining (LON:CMCL,TSE:CAL) revealed that its finance chief Mark Learmonth has bought over £12,000 of shares in the company.
Today, he bought 30,000 shares at 40.2p a pop for £12,060.
He is now beneficially interested in 0.43% of the capital.
Caledonia said last month that its Blanket mine in Zimbabwe continued to be profitable despite the lower gold price, and expects output to be lifted from 2016 as its investment plan takes hold.
Through the US$70mln investment programme, output is scheduled to rise to around 80,000 ounces a year (nearly 42,000 ounces was produced in full year, 2014).
Steve Curtis, president and chief executive, told investors: "We are currently sinking, deepening or equipping four shafts at the Blanket mine in Zimbabwe and I expect this activity will translate into increased production from the first quarter of 2016."
Shares were unchanged at 40p.