Cyrus Massoumi
Solo GP · Miami, FL
Cyrus Massoumi is a solo GP based in Miami, FL focused on Biotech & Pharma, investing at pre-seed, seed stage. Cyrus Massoumi's most recent fund with a disclosed size, humbition II, LLC, filed a $37.1M offering with the SEC in Sep 2025. Estimated typical check: $375K–$1.1M. Cyrus Massoumi's latest dated investing activity was in Sep 2025.
Why Cyrus Massoumi is listed
Named as one of two individuals (Manager of the Manager of the Issuer) on the Form D for humbition II, LLC, a $37.1M venture fund (Sep 2025).
Source: SEC Form D: humbition II, LLC (Sep 29, 2025)
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- Stages
- Pre-seed, Seed
- Typical check (est.)
- $375K–$1.1M
- Latest fund
- $37.1M · Sep 2025
- Latest dated activity
- Sep 2025
Is Cyrus Massoumi a fit for you?
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What does Cyrus Massoumi invest in?
Biotech & PharmaWhat has Cyrus Massoumi invested in recently?
- Oct 2024
humbition II, LLC
Invested through a fund
Funds and deal vehicles Cyrus Massoumi filed with the SEC
- Sep 2025
humbition II, LLC
Fund · $37.1M offering
Sources
- SEC Form D: humbition II, LLCSep 29, 2025
Data refreshed from public sources Oct 15, 2026. Is this you? Remove or correct this profile.