Private company

Wellington Biomedical Innovation Master Investors (Cayman) II L.P.

Fund registered in the Cayman Islands, based in Boston, active since 2021. Summary from the record

Last updated Oct 21, 2026.

Overview

HeadquartersBoston, United States²
Legal formexempted limited partnership²
Kind of organizationFund²
LEI549300FCW61FNS1J4H70²
StatusActive²
LEI statusIssued and current²
Registered address89 Nexus Way, KY1-9009 Grand Cayman, Cayman Islands²
Registered withCayman Islands Monetary Authority, 1939965²

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Corporate structure

Wellington Biomedical Innovation Master Investors (Cayman) II L.P. sits at the top of its group. 4 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Wellington Biomedical Innovation Master Investors (Cayman) II L.P. Boston, Massachusetts, United States
- Korsana Biosciences, Inc. Stake · Waltham, Massachusetts
- MBX Biosciences, Inc. Stake · Carmel, Indiana
- ProMIS Neurosciences Inc. Stake · Toronto, Canada

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); stakes of 5% or more it reported on Schedules 13D and 13G (3 companies). Each entity in the chart links to its source.

Timeline

Mar 4, 2021Founded Wellington Biomedical Innovation Master Investors (Cayman) II L.P. is founded²

Stakes it holds

Wellington Biomedical Innovation Master Investors (Cayman) II L.P. has told the SEC it owns more than 5% of 3 companies, latest first (Schedules 13D and 13G).

Korsana Biosciences, Inc.SCHEDULE 13G Sep 16, 2026³
ProMIS Neurosciences Inc.SCHEDULE 13G/A Mar 18, 2026 to Aug 13, 2026⁴
MBX Biosciences, Inc.SCHEDULE 13G/A Sep 20, 2024 to Nov 12, 2025⁵

Sources

The numbers on this page point here. Each one links to the record it came from.