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Biotech Hedge Fund Portfolios

Track 20specialist biotech hedge funds from their SEC 13F filings. See what they're buying, selling, and where their conviction is strongest.

View all funds' latest position changes →

Baker Bros. Advisors

Felix Baker & Julian Baker

$22B AUM209 holdings$30.7B
BNTXPRAXPRLDABSIRYTM81 new this quarter

Concentrated long-only biotech fund known for taking very large positions in a small number of high-conviction names. The Baker brothers—both trained scientists—focus on deep due diligence of clinical-stage and commercial biotech companies, often holding positions for years through clinical catalysts.

OrbiMed Advisors

Jonathan Silverstein (Managing Partner)

$18B AUM41 holdings$1.7B
APLSARGXCTMXACETADCT7 new this quarter

One of the world's largest healthcare-dedicated investment firms, managing assets across public equity, private equity, royalties, and credit. OrbiMed's team of 100+ professionals includes physicians and PhDs covering all healthcare sub-sectors, with particular depth in biotech and pharma.

RA Capital Management

Peter Kolchinsky, PhD

$10B AUM20 holdings$2.2B
VORBLTECAPRLXEOMDLN8 new this quarter

Crossover biotech fund that invests from late-stage private through public markets. Known for rigorous scientific analysis and the "biotech social contract" framework. Kolchinsky, a virologist by training, emphasizes understanding drug pricing dynamics and long-term value creation in biotech.

Perceptive Advisors

Joseph Edelman

$9B AUM85 holdings$4.5B
AAVXFBLLNADMAAMLXAQST46 new this quarter

Clinical-stage biotech specialist known for deep scientific due diligence and concentrated bets on binary catalysts like FDA approvals and pivotal trial readouts. Edelman and team leverage decades of pattern recognition in drug development to identify asymmetric risk/reward setups.

Deerfield Management

James Flynn

$8B AUM46 holdings$1.6B
CPRXRXSTGPCRSGRYTNGX13 new this quarter

Multi-strategy healthcare fund with one of the longest track records in the space. Deerfield invests across public equity, private equity, structured credit, and royalties in healthcare. Known for creative financing structures and deep industry relationships across pharma and biotech.

Redmile Group

Jeremy Green

$7B AUM10 holdings$370.4M
KRYSCLDXNGNECOGTDBVTF2 new this quarter

Healthcare crossover fund investing from late-stage private rounds through public equity. Redmile manages a diversified book across biotech, medtech, and healthcare services, with a reputation for backing management teams through multiple rounds of financing.

RTW Investments

Roderick Wong, MD

$6B AUM45 holdings$4.0B
FDMTTARSKODBBNXCSTL19 new this quarter

Data-driven biotech fund led by a physician-investor who combines clinical expertise with quantitative analysis. RTW takes concentrated positions across the biotech lifecycle, from crossover privates to public equities, with a focus on therapeutic areas where clinical data can be independently modeled.

Eventide Asset Management

Finny Kuruvilla, MD, PhD

$5B AUM205 holdings$5.2B
HLIENGNWEVMNGRMNFTNT33 new this quarter

Values-based investment firm with significant biotech allocation. Kuruvilla—a physician, engineer, and PhD—leads a team that evaluates companies on both financial merit and alignment with ethical principles. Known for holding high-conviction biotech positions alongside broader healthcare and technology investments.

EcoR1 Capital

Oleg Nodelman

$5B AUM8 holdings$205.4M
CGONMNKDEOLSIBIOIMNM6 new this quarter

Growth-stage crossover fund investing in life sciences companies from late-stage private rounds through public equity. Named after the EcoR1 restriction enzyme, reflecting the firm's scientific roots. Focuses on platform technologies and novel therapeutic modalities.

Cormorant Asset Management

Bihua Chen, PhD

$5B AUM0 holdings

Healthcare-focused crossover fund that invests from late-stage private through public markets. Known for concentrated, high-conviction positions in clinical and commercial-stage biotech companies with strong scientific differentiation.

Foresite Capital

Jim Tananbaum, MD

$4B AUM0 holdings

Data science-driven healthcare crossover fund investing from late-stage private through public equity. Uses proprietary data analytics and clinical expertise to identify asymmetric risk/reward opportunities across biotech and life sciences.

BVF Partners

Mark Lampert

$4B AUM10 holdings$902.6M
ANNXAVTXGLUEAAVXFAXSM

Concentrated, value-oriented biotech fund that typically holds 15-25 positions. Lampert focuses on companies with underappreciated assets relative to their pipeline value, often building large positions and engaging constructively with management teams.

Driehaus Capital

Richard Driehaus (founder, d. 2021)

$4B AUM169 holdings$6.0B
EWTXEVRWLDNAWIVALE28 new this quarter

Growth-oriented investment firm with significant biotech allocation within its healthcare strategy. Originally known for momentum-based investing, Driehaus applies a growth-at-a-reasonable-price philosophy to biotech, emphasizing companies with accelerating revenue growth and approaching commercial inflection points.

Deep Track Capital

David Bhatt, MD

$3B AUM0 holdings

Pure-play biotech hedge fund with a concentrated portfolio focused on clinical-stage companies with upcoming binary catalysts. Combines deep scientific analysis with event-driven positioning.

Avoro Capital Advisors

Behzad Aghazadeh, PhD

$3B AUM98 holdings$21.9B
KRYSCNTAKYMRMDGLMNKD39 new this quarter

Biotech specialist fund (formerly Venbio Select Advisor) that takes concentrated positions in clinical and commercial-stage companies. Aghazadeh, a biochemist, is known for activist-style engagement and has served on multiple biotech boards to drive value creation.

Casdin Capital

Eli Casdin

$3B AUM10 holdings$473.5M
DNLIGHLEGNLABCI2 new this quarter

Life sciences tools and genomics specialist. Casdin Capital focuses on the "picks and shovels" of biotech—sequencing platforms, diagnostics companies, and enabling technologies—rather than traditional drug development bets. Known for early conviction in the genomics revolution.

Rock Springs Capital

Graham McPhail

$3B AUM31 holdings$584.0M
MIRMACADFOLDAPLSACRS7 new this quarter

Concentrated long/short healthcare fund focused on fundamental research. Rock Springs takes conviction-weighted positions based on deep pipeline analysis, therapeutic area expertise, and a willingness to be contrarian when the science supports it.

Boxer Capital

Aaron Davis

$2B AUM0 holdings

San Diego-based biotech specialist investing across the full drug development lifecycle from preclinical through commercial. Takes concentrated positions with deep scientific due diligence, leveraging proximity to the Southern California biotech cluster.

Tang Capital Management

Kevin Tang

$2B AUM0 holdings

Event-driven biotech specialist known for concentrated bets around clinical catalysts, M&A situations, and activist campaigns. Deep industry relationships and willingness to engage publicly make the fund a closely watched market signal.

Commodore Capital

Michael Pellini, MD

$1B AUM13 holdings$646.5M
AMLXANROCOGTCTNMCNTA3 new this quarter

Founded by the former CEO of Foundation Medicine, Commodore brings an operator's perspective to biotech investing. Pellini leverages his experience building and scaling a precision medicine company to evaluate management teams, commercial strategies, and platform potential in portfolio companies.

Frequently asked questions

What biotech hedge funds do you track?

BiotechEdge tracks 20 specialist biotech and healthcare-focused hedge funds, including Baker Bros. Advisors, OrbiMed Advisors, RA Capital Management, Perceptive Advisors, Deerfield Management, and more. These are funds with deep biotech expertise and concentrated portfolios.

How often is 13F data updated?

13F filings are submitted to the SEC quarterly, within 45 days of the quarter end. We ingest and process new filings as they become available. Fund pages are refreshed every 6 hours.

What makes BiotechEdge different from WhaleWisdom or other 13F viewers?

Generic 13F viewers show you raw data across all sectors. BiotechEdge focuses exclusively on biotech, layering in catalyst dates, fund convergence signals, insider trading activity, short interest, and AI-generated context on every position change. We tell you what the data means, not just what it says.

Are 13F filings delayed?

Yes — 13F filings reflect positions as of the quarter end (e.g., March 31) but aren't filed until up to 45 days later. This means the data shows what funds held, not necessarily what they hold right now. BiotechEdge supplements 13F data with real-time insider signals and catalyst tracking.