Signature - Title
Robert Hopfner - Managing Partner
Location
San Francisco, CA
Holdings as of
31 Dec 2025
Filing time
13 Feb 2026, 16:21:46 UTC
Form type
13F-NT
Description
No holdings are reported in this report, and all US holdings are reported by other reporting manager(s). Top holdings included .

Pivotal bioVenture Partners Fund I U.G.P. Ltd didn't report any stock holdings as of Q4 2025.

Person Signing this Report on Behalf of Reporting Manager:

Name Title City, State Date
Robert Hopfner Managing Partner San Francisco, California 13 Feb 2026

Pivotal bioVenture Partners Investment Advisor LLC is reporting for Pivotal bioVenture Partners Fund I U.G.P. Ltd:

Name Holdings Value Location File Number
Pivotal bioVenture Partners Investment Advisor LLC $258,658,319 San Francisco, CA 028-20630