Gas and electricity network operator National Grid has sailed through the turbulence of the past year relatively unscathed. The share price now is still lower than this time in 2008, but has bounced strongly since April and finance director Steve Lucas is taking advantage to sell his second chunk of shares in little over a month.Today he sold 41,000 shares at 608p, to net £249,000, to follow the sale of 36,000 shares at 578p in August. After today's disposal he owns just over the rights to 846,000 shares, comprised of options over 756,271 shares and 90,474 held beneficially. Top Director BuysMan Group (EMG) Director name: Mr Ruud HendriksAmount purchased: 90,365 @ 296.80p Value: £268,203RIT Capital Partners (RCP) Director name: Mr Micky Breuer-WeilAmount purchased: 15,000 @ 968.50p Value: £145,275Barratt Developments (BDEV) Director name: Mr David ThomasAmount purchased: 20,000 @ 274.60p Value: £54,920Ocean Power Technologies (OPT) Director name: Mr Joseph Victor ChatignyAmount purchased: 10,000 @ 292.80p Value: £29,280Angle (AGL) Director name: Mr Andrew D NewlandAmount purchased: 200,000 @ 15.30p Value: £30,600Spirax-Sarco Engineering (SPX) Director name: Mr Mark VernonAmount purchased: 3,000 @ 1,009.50p Value: £30,285TEG Group (TEG) Director name: Mr Nigel MooreAmount purchased: 25,000 @ 42.00p Value: £10,500Top Director SellsCRH (CRH) Director name: Mr Mark S ToweAmount sold: 121,746 @ € 19.20 Value: € 2,337,523Bunzl (BNZL) Director name: Mr Paul Nicholas HusseyAmount sold: 55,000 @ 620.00p Value: £341,000Jardine Matheson (Singapore) (JAR) Director name: Mr Simon L KeswickAmount sold: 10,000 @ $31.92 Value: $319,200Jardine Matheson (Singapore) (JAR) Director name: Mr E P K WeatherallAmount sold: 10,000 @ $31.92 Value: $319,200Jardine Matheson (Singapore) (JAR) Director name: Mr Adam Phillip Charles KeswickAmount sold: 10,000 @ $31.92 Value: $319,200Jardine Matheson (Singapore) (JAR) Director name: Mr Benjamin William KeswickAmount sold: 10,000 @ $31.92 Value: $319,200National Grid (NG.) Director name: Mr Steve LucasAmount sold: 41,000 @ 608.00p Value: £249,280Cranswick (CWK) Director name: Mr Adam CouchAmount sold: 14,961 @ 653.70p Value: £97,800Cranswick (CWK) Director name: Mr Bernard HoggarthAmount sold: 10,961 @ 653.70p Value: £71,652Chemring Group (CHG) Director name: Mr Paul A RaynerAmount sold: 1,964 @ 2,373.00p Value: £46,606