Medical technology developer Biocompatibles International has been approached by a potential bidder. Biocompatibles is cash rich and it says that it should have £26m in the bank at the end of 2010. It has also moved into profit and expects to sustain profitability from now on. A profit of £1.5m is expected for 2010. Broker Singer has slashed its target price for ProStrakan from 159p to 100p following the drug developer's recent disappointing announcements and the departure of its chief executive. The ProStrakan share price remains well below the reduced target price. A series of relatively small trades at just over 300p a share just after 11am appear to have pushed IT services provider Computacenter lower. There were four sales totalling 3,396 shares that appear to have knocked the share price.FTSE TechMARK - RisersBiocompatibles International (BII) 375.00p +14.50%ProStrakan (PSK) 53.00p +8.72%Puricore (PURI) 57.50p +5.50%Renovo Group (RNVO) 26.50p +3.92%Alterian (ALN) 185.00p +3.64%RM Group (RM.) 145.00p +2.84%Renishaw (RSW) 1,023.00p +2.20%Sinclair Pharma (SPH) 28.00p +1.79%BATM Advanced (BVC) 23.50p +1.08%KCOM Group (KCOM) 48.50p +1.04%FTSE TechMARK - FallersAntisoma (ASM) 6.00p -7.26%Ark Therapeutics (AKT) 4.90p -6.84%Torotrak (TRK) 22.00p -4.35%NXT (NTX) 11.00p -4.35%Intec Telecom Systems (ITL) 60.25p -3.98%DRS Data (DRS) 21.25p -3.53%Computacenter (CCC) 301.10p -2.34%Ultra Electronics Holdings (ULE) 1,679.00p -2.21%Emblaze (BLZ) 48.00p -2.04%Parity Group (PTY) 7.63p -1.70%