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

Insider Reports History

Location
Boston, MA
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 transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Wellington Biomedical Innovation Master Investors (Cayman) II L.P.:

Company Role Class Num Shares Value Price $ Report Date Ownership
RayzeBio, Inc. 10%+ Owner Common Stock 1,557,846 $97,365,375 $62.50 19 Sep 2023 Direct
MBX Biosciences, Inc. 10%+ Owner Common Stock 1,790,122 $19,136,404 $10.69 16 Sep 2024 Direct
CARGO Therapeutics, Inc. 10%+ Owner Common Stock 737,000 $11,055,000 $15.00 14 Nov 2023 Direct
Metsera, Inc. 10%+ Owner Common Stock 1,857,699 30 Jan 2025 Direct
Upstream Bio, Inc. 10%+ Owner Common Stock 894,733 15 Oct 2024 Direct
CARGO Therapeutics, Inc. 10%+ Owner Series A-1 Preferred Stock 0 14 Nov 2023 Direct
MBX Biosciences, Inc. 10%+ Owner Series B Preferred Stock 0 16 Sep 2024 Direct
MBX Biosciences, Inc. 10%+ Owner Series C Preferred Stock 0 16 Sep 2024 Direct
Metsera, Inc. 10%+ Owner Series B Preferred Stock 0 30 Jan 2025 Direct
RayzeBio, Inc. 10%+ Owner Series D Preferred Stock 0 19 Sep 2023 Direct
Upstream Bio, Inc. 10%+ Owner Series B redeemable convertible preferred stock 0 15 Oct 2024 Direct

Insider Reports Filed by Wellington Biomedical Innovation Master Investors (Cayman) II L.P.

Symbol Company Period Transactions Value $ Form Type Role Filing Time
MTSR Metsera, Inc. 30 Jan 2025 2 $0 4 10%+ Owner 03 Feb 2025, 18:48
MTSR Metsera, Inc. 30 Jan 2025 0 $0 3 10%+ Owner 30 Jan 2025, 20:46
UPB Upstream Bio, Inc. 15 Oct 2024 2 $0 4 10%+ Owner 15 Oct 2024, 19:21
UPB Upstream Bio, Inc. 10 Oct 2024 0 $0 3 10%+ Owner 10 Oct 2024, 20:48
MBX MBX Biosciences, Inc. 16 Sep 2024 4 $0 4 10%+ Owner 17 Sep 2024, 19:15
MBX MBX Biosciences, Inc. 12 Sep 2024 0 $0 3 10%+ Owner 12 Sep 2024, 19:52
CRGX CARGO Therapeutics, Inc. 14 Nov 2023 2 $0 4 10%+ Owner 16 Nov 2023, 16:19
/report/000095017023048874-wellington-biomedical-innovation-master-investors-cayman-ii-l-p-2023-09-19 RayzeBio, Inc. 19 Sep 2023 2 $0 4 10%+ Owner 19 Sep 2023, 19:41
CRGX CARGO Therapeutics, Inc. 14 Sep 2023 0 $0 3 10%+ Owner 13 Nov 2023, 09:31
/report/000095017023048248-wellington-biomedical-innovation-master-investors-cayman-ii-l-p-2023-09-14 RayzeBio, Inc. 14 Sep 2023 0 $0 3 10%+ Owner 14 Sep 2023, 19:51