As the saying goes, there are many possible reasons for an insider to sell a stock, but only one reason to buy — they expect to make money. So let's look at two noteworthy recent insider buys.

On Friday, Hemispherx Biopharma's Exec. Vice Chairman/CEO/Pres., Thomas K. Equels, made a $118,498 buy of HEB, purchasing 29,404 shares at a cost of $4.03 each. Hemispherx Biopharma is trading up about 0.6% on the day Friday. Before this latest buy, Equels bought HEB on 5 other occasions during the past year, for a total investment of $69,556 at an average of $0.26 per share.

And on Monday, Chief Executive Officer H. Lawrence Webb purchased $49,997 worth of The New Home Company, purchasing 12,345 shares at a cost of $4.05 each. Before this latest buy, Webb purchased NWHM on 2 other occasions during the past year, for a total cost of $102,314 at an average of $3.87 per share. The New Home Company is trading down about 1.7% on the day Friday. Webb was up about 7.0% on the purchase at the high point of today's trading session, with NWHM trading as high as $4.33 in trading on Friday.

For MarketNewsVideo.com, I'm Sayoko Murase.