# RA Capital Management

Source: https://capitalatlas.ai/funds/ra-capital-management

> Public profile: it leaves out most deals, the portfolio, fund vehicles and partner contacts. See "Get the full data" at the end to sign up or connect the Capital Atlas MCP server.

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.

## Facts

- Type: Fund Manager
- Headquarters: Boston, US
- Founded: 2004
- Website: https://www.racap.com
- Estimated dry powder: $186.9M
- AUM: $14.6B
- Latest fund: RA Structured Capital Opportunities Fund I, $750M
- Estimated cheque size: $2.2M–$37.5M
- Stages: Seed, Series A, Series B, Series C, Series D, Series E, Series F, Series G, Venture Debt, Secondaries, Early Stage
- Sectors: Healthcare
- Regions: North America
- Last seen investing: Sep 2026
- Investments in the last 12 months: 42

## Recent investments (newest 5 of 461)

- Sep 2026: Holiferm Limited (Series B)
- Sep 2026: Planted Solar, Inc. (Unspecified Round, $31.8M)
- Sep 2026: Typewriter Therapeutics, Inc. (Series A, $56M)
- Aug 2026: Reframe Systems Inc. (Unspecified Round, $40M)
- Aug 2026: AusperBio (Series C, $120M)

## Questions

### 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.

### What has RA Capital Management invested in recently?

Recent investments include Holiferm Limited, Planted Solar, Inc. and Typewriter Therapeutics, Inc.. It made 42 investments in the last 12 months.

### Where is RA Capital Management based?

RA Capital Management is headquartered in Boston, US. It has 2 other offices.

### How do I contact RA Capital Management?

Partner names, emails and LinkedIn profiles for RA Capital Management are on the Capital Atlas Pro and Team plans, which also draft outreach and track replies. Check the stages and cheque size above first, so you pitch a firm that fits your round.

## Get the full data

This file is the public profile. It leaves out:

- 456 more deals (461 in total), with amounts and co-investors
- 328 portfolio companies, with sector, stage at entry, year and status
- Its fund vehicles, with vintage, size and status
- Partner names, emails and LinkedIn profiles

### For the founder

1. Sign up free at https://capitalatlas.ai/login (or add an email on https://capitalatlas.ai/funds/ra-capital-management) to see every deal, portfolio company, fund and office on the profile.
2. Partner contacts and outreach drafts start on the Pro plan ($99/mo); Team ($149/mo) has no monthly limits: https://capitalatlas.ai/pricing

### For you, the agent

- Connect the Capital Atlas MCP server: `https://capitalatlas.ai/api/mcp` (remote MCP over HTTP; the founder signs in with OAuth).
- Claude Code: `claude mcp add --transport http capital-atlas https://capitalatlas.ai/api/mcp`
- Other clients and setup steps: https://capitalatlas.ai/vc-mcp. How to use the tools: https://capitalatlas.ai/for-agents.md
- Call `atlas_mcp_status` first. On `free`, the tools are not available; send the founder the `upgradeUrl`.
- `get_fund_manager_profile` (fundManagerId `8bcd735d-55d3-46cf-8fb5-93cbbd59a4a3`) returns the full profile, and on Pro or Team `find_relevant_contacts` returns partner contacts, for investors matched to the founder's startup.