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Equibles

VANGUARD PORTFOLIO MANAGEMENT LLC

Position in MBX — MBX Biosciences, Inc.

CIK 2100121 MALVERN, PA
Back to MBX Full portfolio

Position in MBX

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$19,138,778
+$10,383,923 QoQ
Shares Held
346,717
+18.2% QoQ
Ownership
0.720%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#28
of 172 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in MBX Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

VANGUARD PORTFOLIO MANAGEMENT LLC holds $29,186,942,856 across 295 Biotechnology names. MBX ranks #108 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 VRTX
Vertex Pharmaceuticals Inc / Ma
 4,878,987 $2,423,539,212
2 REGN
Regeneron Pharmaceuticals, Inc.
 3,175,313 $1,979,934,668
3 ALNY
Alnylam Pharmaceuticals, Inc.
 6,538,390 $1,968,251,541
4 RVMD
Revolution Medicines, Inc.
 8,294,855 $1,553,460,444
5 INSM
INSMED Inc
 10,407,962 $1,109,696,908
6 MRNA
Moderna, Inc.
 15,581,313 $1,091,159,349
7 INCY
Incyte Corp
 7,791,091 $883,198,075
8 ROIV
Roivant Sciences Ltd.
 21,641,339 $765,886,987

All Filings in MBX

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2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $19,138,778 346,717
2026-03-31 $8,754,855 293,295