Group 1 - The core issue revolves around a case of insider trading involving former fund manager Li Dan, who was fined 600,000 yuan by the Tianjin Securities Regulatory Bureau for controlling another person's securities account to conduct trades based on undisclosed information related to the fund [1][2] - Li Dan was employed at a fund management company from December 9, 2013, and served as a fund manager from February 3, 2016, until February 8, 2024, during which he was privy to confidential investment decisions and trading information [2][3] - The investigation revealed that from March 22, 2022, to February 8, 2024, Li Dan directed trades that mirrored the fund's transactions, resulting in a total of 41 stocks being bought in tandem, amounting to 33.12 million yuan, which represented 72.77% of the total trading amount, ultimately leading to losses [2] Group 2 - Li Dan's performance as a fund manager was notably poor, with a return rate of -7.77% from February 2016 to February 2024, ranking 716th out of 789 similar products [3] - Following the administrative penalty, Li Dan had already stepped down from all management positions at the fund company by September 4, 2024, citing company needs and personnel configuration as reasons for his departure [4] - The fund company has stated that the actions leading to the penalty were personal to Li Dan and emphasized its commitment to enhancing compliance culture and protecting the interests of its investors [4]

Core Viewpoint - The article discusses a case of insider trading known as "mouse warehouse" involving a former fund manager, Li Dan, who was fined for trading based on undisclosed information related to a fund he managed [2][4]. Group 1: Case Details - Li Dan controlled another person's securities account to conduct trading activities related to undisclosed information from March 22, 2022, to February 8, 2024, resulting in a fine of 600,000 yuan [2][3]. - During the mentioned period, Li Dan's trading decisions led to the purchase of 41 stocks, which accounted for 74.55% of the total trades, with a total investment of approximately 33.12 million yuan, representing 72.77% of the total trading amount, ultimately resulting in losses [3][4]. - Li Dan's actions violated the Fund Law, leading to the penalty imposed by the Tianjin Securities Regulatory Bureau [4]. Group 2: Background of Li Dan - Li Dan joined Guoshou Anbao Fund in December 2013 and served as the fund manager for the Guoshou Anbao Core Industry Fund from February 3, 2016, to February 8, 2024 [2][4]. - Over his eight-year tenure managing the Guoshou Anbao Core Industry Fund, Li Dan recorded a return of -7.77%, placing it in the bottom 10% of similar products [4]. - Li Dan managed a total of seven public funds, with one fund reaching a management scale exceeding 2 billion yuan in Q4 2020, but he recorded losses in multiple funds during his management [4]. Group 3: Industry Context - The article highlights that "mouse warehouse" incidents have been recurrent in the industry, with several fund companies, including Jiashi Fund and Puyin Ansheng Fund, facing similar issues [5][6]. - The regulatory environment has tightened, with increased penalties for such violations, indicating a growing awareness and response to these unethical practices [7]. - Industry insiders suggest that the allure of high returns drives some professionals to engage in illegal trading, while existing internal controls and monitoring mechanisms are often inadequate [7].