Security key
55287L101
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 35,666,401
- Total 13F value
- $263,219,997
- Share change
- +2,695,257
- SEC-reported price per share
- $7.38
- Number of holders
- 79
- Value change
- +$14,436,597
- Number of buys
- 49
- Number of sells
- 25
- Shares outstanding
- 47,365,871
Holder snapshot
6 signals
Security identity
1 source field
Report period
Q1 2025
Institutions
79
Top holders
10
MBX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2025
Previous quarter: Q4 2024
MBX Biosciences, Inc. SEC filings
MBX Biosciences, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 55287L101
Recent filing periods:
Ownership snapshot
Top reported holders of MBX - MBX Biosciences, Inc. - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Frazier Life Sciences Man...
Disclosed value leader
Frazier Life Sciences Man...
Comparable rows
15/15
Latest evidence
31 Dec 2024
13F
3/4/5
Lead comparable stake: 13%
Showing 1-6 of 15 holder rows.
Quick read
Frazier Life Sciences Management, L.P. leads the comparable SEC ownership view at 13%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
Frazier Life Sciences Management,...
13%
ORBIMED ADVISORS LLC
8%
NEA Management Company, LLC
7.6%
Deep Track Capital, LP
6.4%
WELLINGTON MANAGEMENT GROUP LLP
6.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. |
13F
Company
|
13%
|
$110,309,945
5,985,347 shares
|
— | 31 Dec 2024 |
| ORBIMED ADVISORS LLC |
13F
3/4/5
Company · Director, 10%+ Owner
|
8%
|
$70,259,122
3,812,215 shares
|
— | 31 Dec 2024 |
| NEA Management Company, LLC |
13F
Company
|
7.6%
|
$66,614,977
3,614,486 shares
|
— | 31 Dec 2024 |
| Deep Track Capital, LP |
13F
Company
|
6.4%
|
$55,638,972
3,018,935 shares
|
— | 31 Dec 2024 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
6.1%
|
$52,991,925
2,909,639 shares
|
— | 31 Dec 2024 |
| NVP Associates, LLC |
13F
Company
|
4.5%
|
$39,372,654
2,136,335 shares
|
— | 31 Dec 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
79
Shares
35,666,401
Rows available
79
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2025 vs Q4 2024 Across Filers
Q4 2024 holders
63
Q1 2025 holders
79
Holder diff
16
| Investor | Q4 2024 Shares | Q1 2025 Shares | Share Diff | Share Chg % | Q4 2024 value | Q1 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend