Janus Henderson Triton Fund (JATTX) is an open-end mutual fund that seeks long-term growth of capital in the small growth category. The fund pursues its objective by investing at least 50% of its equity assets in small- and medium-sized companies with differentiated business models, innovative approaches, or unique products and services that leverage sustainable competitive advantages for multi-year growth; it also invests in larger companies exhibiting strong growth potential, with a diversified portfolio spanning primarily U.S. stocks (approximately 90%) across technology (29%), industrials (22%), healthcare (20%), consumer cyclical (11%), and financial services (8%) sectors. Launched on February 25, 2005, the fund is domiciled in the United States, managed by Janus Henderson Investors from its headquarters at 151 Detroit Street, Denver, Colorado, with a total net assets under management of $5.70 billion and a net expense ratio of 0.91%; it offers Class T shares available to U.S. investors with a minimum initial investment of $2,500. The portfolio is overseen by managers Jonathan Coleman (since 2013), Scott Stutzman (since 2016), and Aaron Schaechterle (since September 2023), emphasizing moderate-risk small-mid-cap growth strategies for lower volatility relative to benchmarks. In October 2025, the parent company Janus Henderson Group plc confirmed receipt of a non-binding acquisition proposal from Trian Fund Management and General Catalyst at $46.00 per share in cash for outstanding ordinary shares not already owned by Trian, prompting the board to form a special committee of independent directors to evaluate the offer amid ongoing constructive engagement with Trian since 2020.