Keystone Positive Change Investment Trust plc Keystone Positive Change Investment Trust plc is a UK-listed closed-end investment trust that seeks long-term capital growth by investing in a concentrated portfolio of equities from companies delivering positive social or environmental impact; its core offerings include exposure to sectors such as healthcare innovation, technology for social inclusion, education access, climate solutions, net zero transitions, biotechnology, and emerging market financial services, with allocations to both listed and select unlisted private companies globally, including significant emerging markets exposure, managed actively by Baillie Gifford & Co Limited to outperform the MSCI AC World Index by at least 2% per annum over rolling five-year periods while adhering to strict impact criteria across themes like social inclusion and education, environment and resource needs, healthcare and quality of life, and base-of-the-pyramid solutions. Founded in 1954 and headquartered in London, the trust operates internationally with a focus on high-conviction, differentiated holdings that exclude certain sectors to prioritize sustainability. In recent developments, the trust proposed and advanced a scheme of reconstruction and voluntary winding-up announced in October 2024, offering shareholders an uncapped cash exit at a modest discount to formula asset value or rollover into the Baillie Gifford Positive Change Fund OEIC effective around March 2025, following insufficient shareholder support for continuation amid activist challenges, with the company entering liquidation proceedings and next accounts due for the period ending 30 September 2025.