# BAKER BROS. ADVISORS LP

BAKER BROS. ADVISORS LP of NEW YORK, NY is an SEC-registered investment adviser.

## Registration

- CRD: 158149
- Type: SEC-registered investment adviser
- SEC file number: 801-73446
- Location: 860 WASHINGTON STREET, 3RD FLOOR, NEW YORK, NY, 10014
- Phone: 212-339-5600
- Latest filing: 2026-03-27
- Regulatory AUM: $28.1B
- Discretionary AUM: $28.1B
- Clients: 60
- Accounts: 2

## Business model

- Compensation: % of AUM, Performance
- Clients served: Investment cos

## Officers, owners & control persons (9)

| Name | Role | Location |
| --- | --- | --- |
| Baker James | CO-MANAGING MEMBER; LIMITED PARTNER; MANAGING MEMBER (+1 more) | Dublin, L2 |
| Julian Charles Baker | LIMITED PARTNER; MANAGING MEMBER | — |
| Felix James Baker | LIMITED PARTNER; MANAGING MEMBER | — |
| Scott Lawrence Lessing | PRESIDENT, CHIEF COMPLIANCE OFFICER | — |
| Alexandra Ann Toohey | CHIEF FINANCIAL OFFICER | — |
| BAKER LOUIS CHARLES | CO-MANAGING MEMBER; LIMITED PARTNER; MANAGING MEMBER (+1 more) | — |
| TOOHEY ALEXANDRA ANN | CHIEF FINANCIAL OFFICER | — |
| LESSING SCOTT LAWRENCE | PRESIDENT, CHIEF COMPLIANCE OFFICER | — |
| KIRBY LEO EDWARD | CHIEF FINANCIAL OFFICER | — |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/158149/brochure
- Similar advisers: https://search.stillhousedata.com/firm/158149/similar
- Related entities: https://search.stillhousedata.com/firm/158149/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/158149

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Source: public SEC Form ADV data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.