Group 1 - The biopharmaceutical sector experienced a decline of 0.64% on September 3, with Sai Sheng Pharmaceutical leading the drop [1] - The Shanghai Composite Index closed at 3813.56, down 1.16%, while the Shenzhen Component Index closed at 12472.0, down 0.65% [1] - Notable gainers in the biopharmaceutical sector included Baipu Sais, which rose by 12.10% to a closing price of 65.50, and Yuan Yang Crystal Sea, which increased by 9.14% to 32.95 [1] Group 2 - The net capital outflow from the biopharmaceutical sector was 446 million yuan, while retail investors saw a net inflow of 292 million yuan [3] - The table of individual stock capital flows indicates varying levels of investment activity among different companies within the sector [3]