4BIO Capital

Activity from announced rounds

Activity in this selectionOct 31, 2026 · Oct 1, 2026
Rounds participated in
2
Confirmed lead rounds
1
All roles disclosed
New companies
2
First participation on record · 0 follow-on
Funding in participating rounds
$111M
2 disclosed · full round size, not this investor’s share

By stage

Seed1
Series A1

By primary sector

Biotech2

By country

United Kingdom1
United States1

Rounds

2 in this selection
Estuary Biotherapeutics

Estuary Biotherapeutics develops locally delivered gene therapies for patients with inherited polycystic kidney disease.

$93MSeries A
Participant
Undecimal Bio

Undecimal Bio develops delivery molecules that help RNA medicines reach specific tissues, with initial research programmes in kidney and vascular disease.

$18MSeed
Lead