Baker Bros. Advisors
Superinvestor profile · Rank #22 by reported 13F value (2026 Q2 filers) · CIK 0001263508 · All profiles
Founded 2000New York, New York, USConcentrated long-term biotechnology and healthcare equity investingKey person: Julian Baker and Felix Baker
Reported 13F value
$20.0B
Period 2026-06-30 · Filed 2026-08-14
Positions
84
Top 10 = 72.8% of value
Clone performance
Withheld
Price coverage too low — see note
Latest-quarter activity
8 new · 8 exited
16 increased · 7 decreased
Clone performance withheld for this manager. Only 75.3% of the latest filing's reported value sits inside our price history, and on average 51% of each historical segment's weight is unpriced as well; the rest is mostly non-U.S. listings and small-cap names we cannot price reliably. A clone computed from the priced minority would misrepresent the disclosed portfolio, so we do not publish one. The snapshot, holdings and filing history below are complete as reported. Evidence: filing-by-filing dossier (PDF) · Methodology (PDF)
Top holdings — 2026 Q2 filing
| Ticker | Company | Weight | Reported value |
|---|---|---|---|
| INCY | Incyte Corporation | 17.48% | $3.5B |
| ONC | Beone Medicines Ltd. | 12.57% | $2.5B |
| RVMD | Revolution Medicines, Inc. | 10.74% | $2.1B |
| MDGL | Madrigal Pharmaceuticals, Inc. | 5.77% | $1.2B |
| ACAD | Acadia Pharmaceuticals Inc. | 5.44% | $1.1B |
| KYMR | Kymera Therapeutics, Inc. | 4.97% | $993M |
| INSM | Insmed Incorporated | 4.70% | $938M |
| CELC | Celcuity Inc. | 4.15% | $828M |
| KOD | Kodiak Sciences Inc. | 3.89% | $776M |
| RYTM | Rhythm Pharmaceuticals, Inc. | 3.12% | $622M |
As reported on the 2026-06-30 Form 13F (filed 2026-08-14). Full holdings and quarter changes: holdings page.
Filing history in this profile
Every clone input traces to one of these SEC filings. 75.3% of the latest filing's reported value is covered by our price history; the remainder is mostly non-U.S. listings, recent IPOs or delisted names and is excluded from the clone.
Background (founded / HQ / style) source: https://www.insidermonkey.com/hedge-fund/baker+bros+advisors/320 — Healthcare-focused hedge fund founded by brothers Julian and Felix Baker; known for concentrated, long-horizon biotech positions.