CARMEL, IN
MBX BIOSCIENCES, INC.MBX— Latest position per institution from SEC 13F filings
15
Institutional holders
46.98M
Total shares held
2.42B
Estimated value
2.35M
Avg. position size
FRAZIER LIFE SCIENCES MANAGEMENT, L.P.
CIK 1892134
Shares
6.65M
Value
367.19M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
5.32M
Value
293.82M
Filed
Jun 30, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
4.98M
Value
274.76M
Filed
Jun 30, 2026
NEA MANAGEMENT COMPANY, LLC
CIK 1512848
Shares
3.61M
Value
199.52M
Filed
Jun 30, 2026
ORBIMED ADVISORS LLC
CIK 1055951
Shares
3.43M
Value
189.27M
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
3.32M
Value
183.47M
Filed
Jun 30, 2026
PARADIGM BIOCAPITAL ADVISORS LP
CIK 1855655
Shares
2.51M
Value
138.44M
Filed
Jun 30, 2026
NVP ASSOCIATES, LLC
CIK 1545692
Shares
2.14M
Value
117.93M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
1.82M
Value
57.33M
Filed
Dec 31, 2025
DEEP TRACK CAPITAL, LP
CIK 1856083
Shares
1.73M
Value
95.64M
Filed
Jun 30, 2026
POLAR CAPITAL HOLDINGS PLC
CIK 1837309
Shares
1.61M
Value
88.79M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
1.48M
Value
81.55M
Filed
Jun 30, 2026
MPM BIOIMPACT LLC
CIK 1687078
Shares
1.29M
Value
14.77M
Filed
Jun 30, 2025
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
1.29M
Value
23.38K
Filed
Jun 30, 2026
AARON WEALTH ADVISORS LLC
CIK 1812198
Shares
1.17M
Value
64.46M
Filed
Jun 30, 2026
DRIEHAUS CAPITAL MANAGEMENT LLC
CIK 938206
Shares
1.06M
Value
58.32M
Filed
Jun 30, 2026
KYNAM CAPITAL MANAGEMENT, LP
CIK 1907884
Shares
934.80K
Value
51.60M
Filed
Jun 30, 2026
WOODLINE PARTNERS LP
CIK 1784547
Shares
900.09K
Value
49.69M
Filed
Jun 30, 2026
EVENTIDE ASSET MANAGEMENT, LLC
CIK 1442891
Shares
873.49K
Value
48.22M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
864.47K
Value
47.72M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | FRAZIER LIFE SCIENCES MANAGEMENT, L.P. | 1892134 | 6.65M | 367.19M | Jun 30, 2026 |
| 2 | FMR LLC | 315066 | 5.32M | 293.82M | Jun 30, 2026 |
| 3 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 4.98M | 274.76M | Jun 30, 2026 |
| 4 | NEA MANAGEMENT COMPANY, LLC | 1512848 | 3.61M | 199.52M | Jun 30, 2026 |
| 5 | ORBIMED ADVISORS LLC | 1055951 | 3.43M | 189.27M | Jun 30, 2026 |
| 6 | BLACKROCK, INC. | 2012383 | 3.32M | 183.47M | Jun 30, 2026 |
| 7 | PARADIGM BIOCAPITAL ADVISORS LP | 1855655 | 2.51M | 138.44M | Jun 30, 2026 |
| 8 | NVP ASSOCIATES, LLC | 1545692 | 2.14M | 117.93M | Jun 30, 2026 |
| 9 | VANGUARD GROUP INC | 102909 | 1.82M | 57.33M | Dec 31, 2025 |
| 10 | DEEP TRACK CAPITAL, LP | 1856083 | 1.73M | 95.64M | Jun 30, 2026 |
| 11 | POLAR CAPITAL HOLDINGS PLC | 1837309 | 1.61M | 88.79M | Jun 30, 2026 |
| 12 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 1.48M | 81.55M | Jun 30, 2026 |
| 13 | MPM BIOIMPACT LLC | 1687078 | 1.29M | 14.77M | Jun 30, 2025 |
| 14 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 1.29M | 23.38K | Jun 30, 2026 |
| 15 | AARON WEALTH ADVISORS LLC | 1812198 | 1.17M | 64.46M | Jun 30, 2026 |
| 16 | DRIEHAUS CAPITAL MANAGEMENT LLC | 938206 | 1.06M | 58.32M | Jun 30, 2026 |
| 17 | KYNAM CAPITAL MANAGEMENT, LP | 1907884 | 934.80K | 51.60M | Jun 30, 2026 |
| 18 | WOODLINE PARTNERS LP | 1784547 | 900.09K | 49.69M | Jun 30, 2026 |
| 19 | EVENTIDE ASSET MANAGEMENT, LLC | 1442891 | 873.49K | 48.22M | Jun 30, 2026 |
| 20 | STATE STREET CORP | 93751 | 864.47K | 47.72M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.