Two directors at Helius Energy have sold £1¼m of shares in the installer of biomass-powered renewable electricity generation plants.Commercial director Chris Corner made £660,000 from the sale of 2.2m shares at 30p each, while technical director Adrian Bowles offloaded 2m shares at the same price.Helius shares were as low as 16p at the end of last year and about 20p at the start of April before beginning their rally to almost 35p, reached a month ago.In May, the company said it moved into profit in the half year to March 31 after selling its first project to RWE Innogy, the renewable energy arm of the power group RWE. Profit totalled £19,000, compared with a loss of £1.17m over the same period the previous year, as revenues rose to £554,000 from nil. It earned £500,000 from a transitional services agreement with RWE Innogy.Corner still has 5.3m shares, or 6.3% of the company, and Bowles over 2m shares, representing 2.4% of the business.Top Director BuysInforma (INF) Director name: Mr Derek MappAmount purchased: 22,538 @ 233.50p Value: £52,626Origo Sino-India (OSI) Director name: Mr Niklas PonnertAmount purchased: 177,622 @ 17.00p Value: £30,196Origo Sino-India (OSI) Director name: Mr Chris Andre RynningAmount purchased: 177,621 @ 17.00p Value: £30,196Intermap Technologies (IMAP) Director name: Dr Craig MarksAmount purchased: 13,873 @ 108.93p Value: £15,112Intermap Technologies (IMAP) Director name: Mr Edward S EvansAmount purchased: 13,837 @ 108.93p Value: £15,073Intermap Technologies (IMAP) Director name: Mr Larry G GarberdingAmount purchased: 13,837 @ 108.93p Value: £15,073Intermap Technologies (IMAP) Director name: Mr Terry J. OwenAmount purchased: 13,837 @ 108.93p Value: £15,073HaiKe Chemical Group (HAIK) Director name: Mr Johnson LauAmount purchased: 70,000 @ 37.00p Value: £25,900Intermap Technologies (IMAP) Director name: Mr Jerald S HoweAmount purchased: 8,995 @ 108.93p Value: £9,798Intermap Technologies (IMAP) Director name: Mr Donald R GardnerAmount purchased: 8,995 @ 108.93p Value: £9,798Top Director SellsProvident Financial (PFG) Director name: Mr Peter CrookAmount sold: 114,330 @ 800.00p Value: £914,640Provident Financial (PFG) Director name: Mr Andrew C FisherAmount sold: 98,740 @ 800.00p Value: £789,920Helius Energy (HEGY) Director name: Mr Christopher CornerAmount sold: 2,000,000 @ 30.00p Value: £600,000Helius Energy (HEGY) Director name: Dr Dr Adrian BowlesAmount sold: 2,000,000 @ 30.00p Value: £600,000Dairy Farm International (Singapore) (DFI) Director name: Mr Howard Leonard MowlemAmount sold: 30,000 @ $5.20 Value: $156,060Helius Energy (HEGY) Director name: Mr Christopher CornerAmount sold: 200,000 @ 30.00p Value: £60,000BBA Aviation (BBA) Director name: Mr Simon PryceAmount sold: 24,163 @ 125.00p Value: £30,204