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 $604,294,540
Change This QTR +0.87%
Filing Period:
Last update:
No. Security Ticker Shares Value Activity % Port History
1. AVR 5,545,984 $54,627,942 +4% 9.04%
2. COR 173,588 $49,121,932 +73% 8.13%
3. MMS 715,267 $38,452,754 -7% 6.36%
4. ALLO 13,323,431 $27,712,736 NEW 4.59%
5. GMED 301,816 $23,846,482 NEW 3.95%
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