Janus Henderson Research Fund - T Shares (JAMRX) is a mutual fund managed by Janus Henderson Investors, offering investors exposure to a diversified portfolio of equities selected through rigorous fundamental research. The fund invests primarily in common stocks of U.S. and non-U.S. companies across various market capitalizations, emphasizing growth-oriented securities with strong competitive advantages, high-quality management, and attractive valuations; it employs a bottom-up stock selection process focusing on sectors such as technology, healthcare, consumer discretionary, and financials. Shares are available in T share class, which features a specific fee structure including a 0.75% front-end sales load, ongoing management fees, and distribution expenses tailored for retail investors seeking long-term capital appreciation. Janus Henderson Investors, headquartered in London, United Kingdom, with major operations in Denver, Colorado, and other global offices, was formed in 2017 through the merger of Janus Capital Group (founded 1969) and Henderson Group (founded 1934), providing asset management services worldwide across equities, fixed income, alternatives, and multi-asset strategies targeting institutional and individual clients in North America, Europe, Asia-Pacific, and emerging markets. Recent developments include the integration of enhanced ESG (environmental, social, and governance) factors into the research process as of 2024, alongside strategic portfolio manager additions and a focus on sustainable growth themes amid market volatility; in 2025, the firm announced expanded research capabilities through a partnership with leading data analytics providers to bolster AI-driven insights for funds like JAMRX.