Palo Alto Investors

Hedge Fund SEC-registered adviser

Legal name: Palo Alto Investors LP

Palo Alto, CA Website

AUM

$696.0M
Regulatory AUM

Private funds

6
Hedge Fund 6

Private fund assets

$692.0M
Gross asset value

Employees

10

Last Form D raise

Feb 2026
Most recent fund filing

From SEC Form ADV filing (filed Mar 27, 2026). View on SEC

People(2)

Owners and executive officers named on the firm's SEC Form ADV.

A
Anthony Yun
Trustee of Yun-Bazar Family Trust
Source: SEC Form ADV
P
Patrick Lee
Trustee of Patrick Y Lee Declaration of Trust
Source: SEC Form ADV

Funds(6)

Private funds reported on Form ADV, with amounts raised from the funds' SEC Form D filings.

FundTypeGross assetsRaised (Form D)InvestorsLast Form DRecency
Palo Alto Healthcare Master Fund II, L.P.Hedge Fund$280.0M$597.7M236Feb 2026Warm
Palo Alto Healthcare Master Fund, L.P.Hedge Fund$227.0M$330.9M97Feb 2026Warm
Palo Alto Advanced Life Sciences Master Fund, L.P.Hedge Fund$87.0M$74.7M16Feb 2026Warm
Palo Alto Korea Fund, L.P.Hedge Fund$11.0M$10.4M11Feb 2026Warm
Palo Alto PE Fund, L.P.Hedge Fund$3.0M$1.0M2Feb 2026Warm
Micro Cap Partners, L.P.Hedge Fund$84.0M———

Board seats

Companies whose SEC Form D filings name one of this firm's people as a director, matched by name and office ZIP code.

No board seats matched from SEC filings yet.

Regulatory identifiers

CRD number
109171
SEC file number
801-58166
CIK
1306923

Sources