Security key
55287L101
- Type / Class
- Equity / COMMON STOCK
- Shares outstanding
- 47,365,871
- Total 13F shares
- 30,305,441
- Share change
- +30,303,631
- Total reported value
- $784,071,713
- Price per share
- $25.98
- Number of holders
- 45
- Value change
- +$784,024,689
- Number of buys
- 44
Report period
Q3 2024
Institutions
45
Top holders
10
MBX full security history
Newer 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:
Top shareholders of MBX - MBX Biosciences, Inc. - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: 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.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Frazier Life Sciences X, L.P. |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
4,552,774
|
$48,669,154 | — | 16 Sep 2024 | |
| Ali Behbahani |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
3,614,486
|
$38,638,855 | — | 16 Sep 2024 | |
| Anthony A. Florence Jr. |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
3,614,486
|
$38,638,855 | — | 16 Sep 2024 | |
| Carmen Chang |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
3,614,486
|
$38,638,855 | — | 16 Sep 2024 | |
| Forest Baskett |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
3,614,486
|
$38,638,855 | — | 16 Sep 2024 | |
| Mohamad Makhzoumi |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
3,614,486
|
$38,638,855 | — | 16 Sep 2024 | |
| New Enterprise Associates 17, L.P. |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
3,614,486
|
$38,638,855 | — | 16 Sep 2024 | |
| Paul Edward Walker |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
3,614,486
|
$38,638,855 | — | 16 Sep 2024 | |
| Rick Yang |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
3,614,486
|
$38,638,855 | — | 16 Sep 2024 | |
| Scott D. Sandell |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
3,614,486
|
$38,638,855 | — | 16 Sep 2024 | |
| Wellington Biomedical Innovation Master Investors (Cayman) II L.P. |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
1,790,122
|
$19,136,404 | — | 16 Sep 2024 |
Institutional Holders of MBX Biosciences, Inc. - COMMON STOCK (MBX) as of Q3 2024
As of 30 Sep 2024,
MBX Biosciences, Inc. - COMMON STOCK (MBX) was held by
45 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
30,305,441 shares.
The largest 10 holders included
Frazier Life Sciences Management, L.P., ORBIMED ADVISORS LLC, NEA Management Company, LLC, Deep Track Capital, LP, WELLINGTON MANAGEMENT GROUP LLP, NVP Associates, LLC, RA CAPITAL MANAGEMENT, L.P., PRICE T ROWE ASSOCIATES INC /MD/, EcoR1 Capital, LLC, and Driehaus Capital Management LLC.
This page lists
45
institutional shareholders reporting positions in this security
for the Q3 2024 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q3 2024 vs Q4 2025 Across Filers
Q4 2025 holders
138
Q3 2024 holders
45
Holder diff
-93
| Investor | Q4 2025 Shares | Q3 2024 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q3 2024 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.