Approval of Brinsupri Lifted Insmed Incorporated (INSM) in Q3

Core Insights - Baron Health Care Fund reported a 5.39% increase in Q3 2025, slightly outperforming the Russell 3000 Health Care Index which gained 5.05% [1] - The fund's performance was impacted by stock selection and negative effects from active sub-industry allocations and cash holdings during a rising market [1] Fund Performance - The Baron Health Care Fund's Institutional Shares rose 5.39% in Q3 2025 [1] - The Russell 3000 Index had a higher gain of 8.18% during the same period [1] Key Holdings - Insmed Incorporated (NASDAQ:INSM) was highlighted as a significant stock, with a one-month return of 11.47% and a 52-week gain of 110.54% [2] - As of October 31, 2025, Insmed's stock closed at $161.38, with a market capitalization of $34.112 billion [2] Company Overview - Insmed is focused on developing therapies for serious pulmonary diseases, with potential peak sales exceeding $8 billion from three lead drug candidates [3] - The recent U.S. approval of Brinsupri for non-cystic fibrosis bronchiectasis presents a $5 billion market opportunity due to the lack of approved treatments [3] - The company is also developing treprostinil palmitil inhalation powder (TPIP), which aims to improve treatment for pulmonary arterial hypertension with a once-daily dosage [3] Market Position - Insmed was held by 82 hedge fund portfolios at the end of Q2 2025, an increase from 64 in the previous quarter [4] - Despite its potential, some analysts suggest that certain AI stocks may offer greater upside potential with less downside risk compared to Insmed [4]