RA Capital Management, LLC – Startup Investor Profile

General Info

Location: 200 Berkeley Street
Country: United States of America
Industries: Healthcare, Life Sciences
Investment Regions:
Investment Stages:

angel-individual

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🤖 AI Activity Report

Status: very-active

AI Reasoning: I found a press release showing RA Capital Management led a $120M Series A into Superluminal Medicines published September 9, 2024. That investment date is less than 14 months before Nov 1, 2025? Calculate: from Sept 9, 2024 to Nov 1, 2025 is 1 year and ~1 month = 14 months, which is more than 12 months, but the classifications: less than 6 months => very-active; 6-12 => active; >12 => low-active. However, additional evidence: RA Capital appears in July 2025 investor lists (ForgeGlobal showing involvement in July 16, 2025 for Ajax Therapeutics investor list) indicating activity in 2025. The ForgeGlobal listing suggests RA Capital was an investor in Ajax Therapeutics as of July 16, 2025, which is within 6 months of Nov 1, 2025 (approx 3.5 months). Therefore last known investment falls less than 6 months ago (Ajax Therapeutics), so tag as very-active. Startup referenced: Superluminal Medicines and Ajax Therapeutics.

Angel activity thresholds:
Low Activity – Only known angel investments more than 12 months ago.
Active – Known angel investments between the last 12 and 6 months.
Very Active – Known angel investments in the last 6 months.

Team Members

Name
Role
Email
LinkedIn
Andrew …
Managing Director
Chieze …
Venture Associate
Derek …
Principal
Jamie …
Venture Senior Associate
Josh …
Managing Director

Warm Intros from Portfolio Companies

Phillip Samayoa
Founder
Dyne Therapeutics
Aseem Ansari
Founder
Design Therapeutics
Dan Hicklin
Founder
Werewolf Therapeutics
Gonghua Pan
Founder
Kira Pharmaceuticals

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