RA Capital Management

Activity from announced rounds

Activity in this selectionUnited States · Sep 30, 2026 · Sep 1, 2026

RA Capital Management founds, funds and scales companies in healthcare and planetary health, combining scientific research with capital from seed through public-market financings.

Its TechAtlas research platform informs investment decisions through detailed scientific and market analysis. Raven, its healthcare incubator, works on originating and co-creating companies, giving researchers a route from a scientific idea to a funded business.

Blackbird provides a clinical development accelerator alongside the investment platform. These capabilities are relevant for founders who need to design a development programme and reach clinical milestones, as well as finance laboratory or commercial work.

Sources
Rounds participated in
4
Confirmed lead rounds
2
All roles disclosed
New companies
4
First participation on record · 0 follow-on
Funding in participating rounds
$433.5M
4 disclosed · full round size, not this investor’s share

By stage

Series A2
Series B1
Series C+1

By primary sector

Biotech4

By country

United States4

Rounds

4 in this selection
Circle Pharma, Inc.

Circle Pharma discovers macrocycle medicines for cancer and other serious diseases using its MXMO platform, which combines computational, structure-based design with synthetic chemistry to create cell-permeable compounds against difficult protein targets. Its lead programs are investigational and at discovery or preclinical stages.

$92.5MSeries E
Participant
Solstice Oncology

A clinical-stage immunotherapy company is advancing an engineered CTLA-4 antibody for earlier cancer treatment.

$225MSeries A
Lead
Superluminal Medicines

Superluminal Medicines combines structural biology, protein dynamics, machine learning and experimental testing to discover small-molecule drugs for difficult G protein-coupled receptor targets. Its pipeline focuses on endocrine and cardiometabolic diseases, including rare genetic and hypothalamic obesity.

$60MSeries B
Participant
Typewriter Therapeutics

Typewriter Therapeutics is developing an all-RNA gene-writing platform that inserts therapeutic genes at a defined genomic site without viral vectors or double-strand DNA breaks. Its programs target in vivo engineered CAR-T cells and gene insertion for severe genetic diseases, including liver disorders.

$56MSeries A
Lead