RA Capital Management
Est. dry powder
$186.9M
Raised, not yet invested
AUM
$14.6B
Assets under management
Latest fund
$750M
RA Structured Capital Opportunities Fund I
Est. cheque size
$2.2M–
From fund sizes
Deals, last 12 months
42
Last seen investing Sep 2026
About RA Capital Management
RA Capital Management, L.P. is a multi-stage investment manager focused on public and private healthcare, life sciences, and planetary health companies. The firm invests across equity and credit strategies, including long, short, and debt positions, in companies developing drugs, medical devices, diagnostics, services, and research tools in the U.S. and globally.
- Type
- Fund Manager
- Headquarters
- Boston, Massachusetts, US
- Stages
- SeedSeries ASeries BSeries CSeries DSeries ESeries FSeries G+3
- Est. cheque size
- $2.2M–$37.5M
- Sectors
- Healthcare
- Regions
- North America
Where they invest
From deals and portfolio companies on record
Most frequent rounds
- Series B136
- Series A86
- Series C82
- Series D31
- PIPE27
Across 461 deals
Portfolio sectors
- Biotechnology80
- Pharmaceuticals4
- Healthcare IT3
- Medical Devices & Equipment3
- Healthcare2
Across 328 companies
Portfolio countries
- US79
- UK6
- Denmark4
- Israel3
- Switzerland3
Across 328 companies
Recent investments
Newest 5 of 461
- Series B—
Holiferm Limited
Sep 2026 · Series B
- Unspecified Round$31.8M
Planted Solar, Inc.
Sep 2026 · Unspecified Round
- Series A$56M
Typewriter Therapeutics, Inc.
Sep 2026 · Series A
- Unspecified Round$40M
Reframe Systems Inc.
Aug 2026 · Unspecified Round
- Series C$120M
AusperBio
Aug 2026 · Series C
Offices
3 locations
- Boston, Massachusetts, USHQ
- San Francisco, California, US
- New York, New York, US
Questions about RA Capital Management
How much does RA Capital Management invest per deal?
Based on the size of its funds, RA Capital Management writes estimated cheques of $2.2M–$37.5M. Lead cheques usually sit at the top of that range and follow-on cheques lower.
What stages does RA Capital Management invest in?
RA Capital Management has invested at Seed, Series A, Series B, Series C, Series D and Series E. Its most frequent rounds on record are Series B, Series A and Series C.
How much capital does RA Capital Management have left to invest?
RA Capital Management has an estimated $186.9M in dry powder: capital it has raised but not yet invested.