MBX Biosciences, Inc.
MBX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001776111
In the last 90 days, MBX Biosciences, Inc. insiders filed 0 open-market purchases and 1 sale; 172 institutions reported holding it in 13F filings for Q2 2026, worth $3.06B in total; no superinvestor holds it.
Q2 2026 vs. Q1 2026
How the institutions holding MBX Biosciences, Inc. changed between Q1 2026 and Q2 2026.
All holders in Q2 2026All holders in Q1 2026
| Measure | Q1 2026 | Of which not filed for Q2 2026 | Q2 2026 | Change |
|---|---|---|---|---|
| Holders | 157 | 2 | 172 | +17 |
| Shares | 52.5M | 12.1K | 55.5M | +2.95M (+5.6%) |
| Value | $1.57B | $361.1K | $3.06B | +$1.49B (+95.3%) |
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (38)
Institutions that held MBX Biosciences, Inc. at the end of Q2 2026 but not at the end of Q1 2026.
Sold out (21)
Institutions that held MBX Biosciences, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Citadel Advisors LLC | 932,833 | $27.8M |
| StemPoint Capital LP | 499,469 | $14.9M |
| Squarepoint Ops LLC | 97,215 | $2.90M |
| Victory Capital Management Inc | 71,028 | $2.12M |
| Schroder Investment Management Group | 57,322 | $1.54M |
| ExodusPoint Capital Management, LP | 28,087 | $838.4K |
| Swiss Life Asset Management Ltd | 12,130 | $657.2K |
| Engineers Gate Manager LP | 17,380 | $518.8K |
| Qube Research & Technologies Ltd | 17,187 | $513.0K |
| Jump Financial, LLC | 12,700 | $379.1K |
| Verition Fund Management LLC | 10,222 | $305.1K |
| Aquatic Capital Management LLC | 10,155 | $303.1K |
| Acadian Asset Management LLC | 8,823 | $262.0K |
| Brinker Capital Investments, LLC | 7,951 | $237.3K |
| Bridgeway Capital Management, LLC | 7,500 | $223.9K |
| Los Angeles Capital Management LLC | 5,600 | $167.2K |
| Cygnus Capital Advisors, LLC | 1,800 | $54.0K |
| Versant Capital Management, Inc | 24 | $716 |
| MAI Capital Management | 7 | $209 |
| True Wealth Design, LLC | 2 | $60 |
| IFP Advisors, Inc | 1 | $30 |
Not filed for Q2 2026 yet (2)
Institutions that held MBX Biosciences, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Janus Henderson Group PLC | 10,300 | $308.2K |
| CWM, LLC | 1,772 | $52.9K |