MBX Biosciences, Inc. (MBX) Institutional Ownership and Insiders Activity
MBX Biosciences, Inc. (MBX) is widely held by institutional investors, with 172 firms reporting positions valued at approximately $3.05B based on SEC Form 13F filings for the quarter ended June 30, 2026.
Frazier Life Sciences Management, L.P. is the largest disclosed holder, reporting approximately $367.19M in MBX holdings in its latest filing.
Institutional Holders
172
Total Reported Value
$3.05B
Largest Holder
Frazier Life Sciences Management, L.P.
Largest Position
$367.19M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
35
Funds Exiting Positions
27
Top Institutional Owners
View allInvestorReported Balance
- Frazier Life Sciences Management, L.P.$367.19M
- Fmr Llc$293.82M
- Wellington Management Group Llp$274.76M
- Nea Management Company, Llc$199.52M
- Orbimed Advisors Llc$189.27M
Related MBX Institutional Insights:
- MBX 13F Institutional Holders
- MBX Superinvestors
- MBX Institutional Ownership Changes
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Healthcare Stocks By Institutional Investors
- Most Sold Healthcare Stocks By Institutional Investors
- MBX Insider Trading & SEC Form 4 Activity
- MBX Articles
- Top Institutional Investor Stock Rankings