Biocon shares rose after a block deal involving around 1.65 crore shares. Investor Active Pine was reportedly looking to sell up to 1.66 crore shares, or about 1% stake, for around Rs 638 crore at a floor price of Rs 385 per share, implying a discount of up to 1.9% to the market price. The seller will face a 30-day lock-up on further stake sales.