Wellington Biomedical Innovation Master Investors (Cayman) II L.P. - Insider Trading & Ownership

Location
280 Congress Street, Boston, MA
Summary
The estimated value of insider holdings of Wellington Biomedical Innovation Master Investors (Cayman) II L.P. is at least $58.2M dollars as of February 3, 2025. Wellington Biomedical Innovation Master Investors (Cayman) II L.P. is the 10%+ Owner of RayzeBio, Inc. and owns shares of RayzeBio, Inc. stock worth about $28M. Wellington Biomedical Innovation Master Investors (Cayman) II L.P. is the 10%+ Owner of MBX Biosciences, Inc. and owns shares of MBX Biosciences, Inc. (MBX) stock worth about $19.1M. Wellington Biomedical Innovation Master Investors (Cayman) II L.P. is the 10%+ Owner of CARGO Therapeutics, Inc. and owns shares of CARGO Therapeutics, Inc. (CRGX) stock worth about $11.1M.
Signature
Wellington Biomedical Innovation Master Investors (Cayman) II L.P., By: Wellington Management Company LLP, as Investment Adviser, /s/ Peter N. McIsaac, Authorized Person
All Insider Reports
All Insider Reports

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

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
RYZB RayzeBio, Inc. 10%+ Owner $28M Sep 19, 2023
MBX MBX Biosciences, Inc. 10%+ Owner $19.1M Sep 16, 2024
CRGX CARGO Therapeutics, Inc. 10%+ Owner $11.1M Nov 14, 2023
MTSR Metsera, Inc. 10%+ Owner Jan 30, 2025
UPB Upstream Bio, Inc. 10%+ Owner Oct 15, 2024

Insider Transactions Reported by Wellington Biomedical Innovation Master Investors (Cayman) II L.P.:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.