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 $261,839,408
Change This QTR +0.78%
Filing Period:
Last update:
No. Security Ticker Shares Value Activity % Port History
1. MMS 548,086 $38,475,637 +18% 14.69%
2.
Disc Medicine Inc
284,787 $15,082,320 +288% 5.76%
3. GMED 245,570 $14,493,541 +19% 5.54%
4. CNC 262,500 $14,248,500 NEW 5.44%
5. MRK 173,951 $13,769,961 -36% 5.26%
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