The chairman and chief executive of Russia-focused FTSE 250 miner Petropavlovsk each topped up their stakes in the firm after VMHY Holdings - a company in which they together have a 50% holding - bought shares.As a result of the transaction, they each received 105,000 ordinary shares (representing 0.05% of the issued share capital) in Petropavlovsk at a price of 743.89p per share, resulting in purchases worth £781,084 each.Chairman Peter Hambro now holds over 8.67m shares equal to a 4.61% stake, while Pavel Maslovskiy, the company's chief executive, upped his stake to 7.93%. He holds over 14.9m shares.---BCTop Director BuysPetropavlovsk (POG) Director name: Mr Pavel MaslovskyAmount purchased: 105,000 @ 743.89p Value: £781,084Petropavlovsk (POG) Director name: Mr Peter HambroAmount purchased: 105,000 @ 743.89p Value: £781,084Parity Group (PTY) Director name: Mr Philip E SwinsteadAmount purchased: 2,385,216 @ 23.00p Value: £548,600Douglasbay Capital (DBAY) Director name: Mr Colin KingsnorthAmount purchased: 753,060 @ 16.35p Value: £123,125United Utilities Group (UU.) Director name: Mr Steven L MogfordAmount purchased: 15,928 @ 627.87p Value: £100,007F&C Asset Management (FCAM) Director name: Mr Edward BramsonAmount purchased: 100,000 @ 76.83p Value: £76,830Cable & Wireless Communications (CWC) Director name: Mr William Anthony RiceAmount purchased: 100,000 @ 43.80p Value: £43,800Cable & Wireless Communications (CWC) Director name: Mr William Anthony RiceAmount purchased: 100,000 @ 43.80p Value: £43,800Cable & Wireless Communications (CWC) Director name: Mr William Anthony RiceAmount purchased: 100,000 @ 42.93p Value: £42,930Cable & Wireless Communications (CWC) Director name: Mr William Anthony RiceAmount purchased: 100,000 @ 42.92p Value: £42,920Top Director SellsMetminco Ltd. (MNC) Director name: Mr William EtheridgeAmount sold: 600,000 @ 27.50p Value: £165,000Torotrak (TRK) Director name: Mr Dick ElsyAmount sold: 336,838 @ 43.00p Value: £144,840Torotrak (TRK) Director name: Mr Jeremy DeeringAmount sold: 259,971 @ 43.00p Value: £111,788Rugby Estates (RES) Director name: Mr David M F Tweeddale-TyeAmount sold: 17,149 @ 398.00p Value: £68,253Rugby Estates (RES) Director name: Mr Andrew WilsonAmount sold: 17,149 @ 398.00p Value: £68,253Greggs (GRG) Director name: Mr Raymond ReynoldsAmount sold: 12,637 @ 523.00p Value: £66,092Rugby Estates (RES) Director name: Mr Stephen JonesAmount sold: 9,210 @ 328.00p Value: £30,209