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 $369,526,506
Change This QTR +1.10%
Filing Period:
Last update:
No. Security Ticker Shares Value Activity % Port History
1. INSM 1,362,700 $91,300,900 24.7%
2.
Labcorp Holdings Inc
245,902 $50,043,516 NEW 13.54%
3. TFX 111,078 $23,363,036 +228% 6.32%
4. ZBH 155,304 $16,855,143 +110% 4.56%
5. SNN 579,619 $14,362,959 NEW 3.88%
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