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Russell Investments Group, Ltd.

Position in MBX — MBX Biosciences, Inc.

CIK 1692234 Seattle, WA

Position in MBX

as of Jun 30, 2026 · filed Aug 6, 2026
Position Value
$1,002,541
+$887,441 QoQ
Shares Held
18,162
+371.0% QoQ
Ownership
0.038%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#86
of 172 holders
Holding Since
Jun 2025
5 quarters on record
Voting authority Sole 98% Shared 0% None 2%

Common Shares in MBX Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Russell Investments Group, Ltd. holds $1,504,360,847 across 308 Biotechnology names. MBX ranks #124 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in MBX

Export CSV
5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,002,541 18,162
2026-03-31 $115,100 3,856
2025-12-31 $90,077 2,856
2025-09-30 $25,917 1,481
2025-06-30 $399 35