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Baker Bros. Advisors LP

CIK:0001263508
Hedge Fund
$10B AUM
88 holdings
New York, NY, United States
Founded:2000
100 employees
Latest filing:Jun 30, 2025

Baker Bros. Advisors LP is a hedge fund and registered investment adviser headquartered in New York City, founded in 2000 by Julian Baker and Felix Baker. The firm specializes in investments within the biotechnology, life sciences, and healthcare sectors, managing multi-billion dollar portfolios predominantly focused on publicly traded US healthcare companies. Serving institutional and high-net-worth investors, the firm is recognized as one of the most successful healthcare-focused investment managers in the United States.

Investment Strategy

Baker Bros. Advisors employs a fundamentally driven, long-term investment approach with a focus on biotechnology and life sciences companies. The firm invests primarily in public and private healthcare-related securities, including equities, warrants, and convertible debt, concentrating capital in a select group of high-conviction investments. Their strategy involves detailed scientific and financial due diligence, often taking activist or influential roles to support portfolio companies, aiming for superior risk-adjusted returns in the sector.

Top Buys
I
INSMInsmed Incorporated
+$365.7M
S
SMMTSummit Therapeutics Inc.
+$246.5M
I
INCYIncyte Corporation
+$232.3M
A
ACADACADIA Pharmaceuticals Inc.
+$213.1M
K
KYMRKymera Therapeutics, Inc.
+$126.2M
Top Sells
M
MDGLMadrigal Pharmaceuticals, Inc.
-$56.0M
E
EWTXEdgewise Therapeutics, Inc.
-$39.6M
A
ARGXargenx SE
-$25.2M
C
CRSPCRISPR Therapeutics AG
-$22.3M
C
CNTACentessa Pharmaceuticals plc
-$17.6M

Top Holdings

I
INCYIncyte Corporation
+20.3%$2.09B
A
ACADACADIA Pharmaceuticals Inc.
+9.0%$925.3M
I
INSMInsmed Incorporated
+7.5%$776.2M
S
SMMTSummit Therapeutics Inc.
+7.0%$717.6M
M
MDGLMadrigal Pharmaceuticals, Inc.
+5.8%$598.0M

Equity Positions (87)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
I
INCY
Incyte Corporation20.31%$2.09B30,743,275$73.57$68.10+$232.3M
A
ACAD
ACADIA Pharmaceuticals Inc.8.98%$925.3M42,896,690$15.77$21.57+$213.1M
I
INSM
Insmed Incorporated7.53%$776.2M7,712,900$75.94$100.64+$365.7M
S
SMMT
Summit Therapeutics Inc.6.96%$717.6M33,722,974$12.25$21.28+$246.5M
M
MDGL
Madrigal Pharmaceuticals, Inc.5.80%$598.0M1,976,018$173.16$302.64-$56.0M

Industry Allocation

PHARMACEUTICAL PREPARATIONS
+44.5%
SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH
+20.3%
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
+12.1%
SERVICES-MEDICAL LABORATORIES
+1.9%
IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
+0.4%