AdFi
SC

SIO Capital Management, LLC

SEC Registered

Independent Thinking | Identifying Opportunities

New York, NYhttps://siocapital.com212-601-9792
Assets Under Management
$1B–$5B
Year Founded
2006
Employees
13
Office Locations
1 office
Total Accounts
6

About the firm

Sio Capital is a global equity market neutral healthcare hedge fund. Headquartered in New York, Sio Capital is a SEC-registered investment advisor that was founded by Dr. Michael Castor in 2006.

Firm Focus

Client segments reported on the firm's SEC Form ADV — applies to all advisors at the firm.

Pooled VehiclesPension/Profit Sharing

Areas of expertise

HealthcareHedge FundGlobal EquityMarket NeutralInvestment Advisory

Services

Private funds / alternatives
Hedge

Who they serve

Client segmentClientsAssets managed
Pension/Profit Sharing Plans2$685M
Insurance Companies4—

Leadership

Michael Bernard Castor
MANAGING MEMBER
Albert Charles Vigneau
PARTNER
Judah Zvi Drillick
CHIEF COMPLIANCE OFFICER AND CHIEF FINANCIAL OFFICER

Office locations

1 office in 1 state
NY
New YorkHQ

Regulatory & compliance

CRD number
#165989
SEC Number
801-78021
Disciplinary History
No
Fee Model & Minimums
Model: AUM / Performance-based
Minimum: $1,000,000 (waivable)

Data as of March 18, 2026 · Source: SEC IAPD & FINRA BrokerCheck

Contact Information

Editorial disclosure

This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. SIO Capital Management, LLC has not reviewed, approved, or endorsed this profile and is not responsible for its accuracy. Regulatory records change over time — always verify the current record directly on the SEC or FINRA websites before making any decision.

BrokerCheck data is used subject to the FINRA BrokerCheck Terms of Use. Found something inaccurate? Report inaccurate data and we will correct any error we introduced. Errors in the underlying BrokerCheck record itself are referred to FINRA, which maintains that record.

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