Metsera Inc

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Metsera Inc
TickerMTSR
CIK #0002040807
CUSIP59267L107
SectorLife Sciences - Pharmaceutical Preparations
Address3 World Trade Center 175 Greenwich Street, New York, NY 10007
Source [EDGAR]
CIK Filing 2011 - 2025
[0002040807] 10-K
[0002040807] 10-Q
[0002040807] 3
[0002040807] 4
[0002040807] 8-K
[0002040807] D
[0002040807] SC 13D
[0002040807] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Validae Health LP Metsera Inc [2025-06-03] 0.0
Arch Venture Fund XII LP Metsera Inc [2025-02-10] 0.0
FMR LLC Metsera Inc [2025-02-05] 0.0
Form 3/4/5 Filer 2011 - 2025
Pinto Joshua
Metsera, Inc.
Berns Paul L
Hubbard Brian
Marso Steven
Meanwell Clive
Burow Kristina
Visioli Christopher
Lang Matthew
Bernard Christopher Whitten
Stonehouse Jon P
FMR LLC
Wellington Biomedical Innovation Master Investors (Cayman) I
ARCH Venture Partners XII, LLC
Crandell Keith
Gillis Steven
ARCH Venture Fund XII, L.P.
ARCH Venture Partners XIII, LLC
Nelsen Robert
ARCH Venture Partners XII, L.P.
ARCH Venture Partners XIII, L.P.
ARCH Venture Fund XIII, L.P.
Validae Health, L.P.
Population Health Partners GP, LLC
Form 13F Holdings
Firm Period DFND Voting Shares
FMR LLC [2025-06-30] DFND 15,758,330 15,758,330
Alphabet Inc. [2025-06-30] DFND 0 4,961,744
Softbank Group Corp [2025-06-30] DFND 4,819,884 4,819,884
MIC Capital Management UK LLP [2025-06-30] SOLE 4,539,540 4,539,540
VR Adviser LLC [2025-06-30] SOLE 3,750,662 3,750,662
Wellington Management Group LLP [2025-06-30] DFND 0 3,427,432
Janus Henderson Group PLC [2025-06-30] DFND 0 3,387,963
Alpha Wave Global LP [2025-06-30] SOLE 2,384,050 2,384,050
Viking Global Investors LP [2025-06-30] SOLE 1,616,612 1,616,612
Vanguard Group Inc [2025-06-30] SOLE 0 1,454,534
AllianceBernstein LP [2025-06-30] DFND 1,293,096 1,421,359
BlackRock, Inc. [2025-06-30] SOLE 1,200,118 1,237,125
Deep Track Capital LP [2025-06-30] SOLE 1,094,408 1,094,408
RA Capital Management LP [2025-06-30] SOLE 675,525 675,525
State Street Corp [2025-06-30] DFND 572,940 600,203
Geode Capital Management LLC [2025-06-30] DFND 466,955 466,955
Woodline Partners LP [2025-06-30] SOLE 400,785 400,785
Cormorant Asset Management LP [2025-06-30] DFND 400,000 400,000
Eventide Asset Management LLC [2025-06-30] SOLE 396,160 396,160
Royce & Associates LP [2025-06-30] SOLE 331,280 331,280
Jennison Associates LLC [2025-06-30] DFND 312,290 312,290
American Century Companies Inc [2025-06-30] DFND 241,138 287,674
EcoR1 Capital LLC [2025-06-30] SOLE 271,529 271,529
Citadel Advisors LLC [2025-06-30] DFND 266,218 266,218
Massachusetts Financial Services Co /MA/ [2025-06-30] SOLE 253,712 253,712
SilverArc Capital Management LLC [2025-06-30] SOLE 207,581 207,581
Logos Global Management LP [2025-06-30] SOLE 200,000 200,000
Charles Schwab Investment Management Inc [2025-06-30] SOLE 136,406 136,406
Northern Trust Corp [2025-06-30] DFND 133,030 133,030
AXA Sa [2025-06-30] DFND 114,405 114,405
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