Hedge Fund - Sio Capital

Michael Castor Bio, Returns, AUM, Net Worth

Sio Capital Management, LLC is a New York-based investment management firm focused on a global, healthcare-centric portfolio aimed at delivering attractive returns to investors.

Michael Castor is the Founder, Portfolio Manager, and Managing Director of Sio Capital Management. Before establishing Sio Capital, he worked as a Research Analyst at AllianceBernstein. Michael Castor earned his medical degree from The Ohio State University College of Medicine.

Sio Capital Management manages a hedge fund with 7 clients and discretionary assets under management (AUM) of $1,405,889,917 (Form ADV from 2024-03-26). Their last reported 13F filing for Q1 2024 included $335,844,749 in managed 13F securities, with a top 10 holdings concentration of 58.57%. The firm's largest holding is Labcorp Holdings Inc., with 225,902 shares.

Michael Castor
Fund Profile
Filing Period:
Fund Name: Sio Capital
Manager Michael Castor
Portfolio Value $335,844,749
Change This QTR +0.76%
Filing Period:
Last update:
No. Security Ticker Shares Value Activity % Port History
1. LH 225,902 $49,350,551 +37% 14.69%
2. INSM 1,362,700 $36,970,051 +59% 11%
3. CI 76,086 $27,633,674 -35% 8.22%
4. GMED 393,420 $21,103,049 -27% 6.28%
5.
Madrigal Pharmaceuticals Inc.
51,000 $13,619,040 NEW 4.05%
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