再鼎医药（09688.HK）今日盘中大涨6.63%，引起市场广泛关注。截至发稿，该股报25.400港元/股，成交量157.39万股，换手率0.14%，振幅4.55%。资金方面，该股资金流入2448.77万港元，流出937.687万港元。
本次股价上涨主要受到大股东增持的利好消息推动。根据香港联交所6月3日披露的文件，RTW Fund Group GP, LLC于5月27日以每股均价3.099美元增持再鼎医药591.43万股普通股股份，价值约1,832.83万美元。增持后，RTW Fund Group GP, LLC最新持股数目为5,610.11万股股份，好仓比例由4.55%升至5.08%。这一举动显示了大股东对公司未来发展的信心，刺激了投资者的买入热情。
再鼎医药有限公司是一家主要从事生物制药的控股公司，致力于通过产品的发现、开发和商业化解决肿瘤、自身免疫疾病、感染性疾病和中枢神经系统疾病领域未被满足的医疗需求。公司拥有从发现阶段到临床项目后期的一系列专利候选药物，包括"则乐"、"OPTUNE"、"擎乐"、"纽再乐"及"卫伟迦"等。最近的财报数据显示，该公司实现营业收入8.28亿港元，净利润-3.77亿港元，每股收益-0.31港元，毛利5.28亿港元，市盈率-14.04倍。
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