MBX

MBX BIOSCIENCES INC
USCUSIP 55287L101
Institutional Owners
58
+14 QoQ
13F Value Held
$821.0M
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
0
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)29 adding · 19 trimming
Insider net (180d)+$0
Price history not yet available for MBX.

Top institutional holders

58 13F filers
#FundPosition valueSharesLast moveAs of
1Frazier Life Sciences Management, L.P.
$198.6M
6.65MHeldQ1 2026
2ORBIMED ADVISORS LLC
$108.6M
3.64MReducedQ1 2026
3NEA Management Company, LLC
$107.9M
3.61MHeldQ1 2026
4Polar Capital Holdings Plc
$48.4M
1.62MNewQ1 2026
5BRAIDWELL LP
$44.6M
1.49MAddedQ1 2026
6VANGUARD CAPITAL MANAGEMENT LLC
$44.1M
1.48MNewQ1 2026
7Aaron Wealth Advisors LLC
$34.9M
1.17MAddedQ1 2026
8Cormorant Asset Management, LP
$33.4M
1.12MHeldQ1 2026
9Woodline Partners LP
$26.9M
900.1KNewQ1 2026
10EVENTIDE ASSET MANAGEMENT, LLC
$26.6M
890.0KHeldQ1 2026
11STATE STREET CORP
$23.5M
787.2KAddedQ1 2026
12EcoR1 Capital, LLC
$23.2M
777.0KReducedQ1 2026
13Point72 Asset Management, L.P.
$21.5M
680.6KAddedQ4 2025
14TCG Crossover Management, LLC
$19.4M
650.0KHeldQ1 2026
15Candriam S.C.A.
$8.8M
294.4KNewQ1 2026
16VANGUARD PORTFOLIO MANAGEMENT LLC
$8.8M
293.3KNewQ1 2026
17Rock Springs Capital Management LP
$8.6M
288.0KAddedQ1 2026
18BOOTHBAY FUND MANAGEMENT, LLC
$6.2M
208.0KNewQ1 2026
19Soleus Capital Management, L.P.
$5.3M
178.9KReducedQ1 2026
20VANGUARD FIDUCIARY TRUST CO
$5.1M
170.2KNewQ1 2026
21Goelzer Investment Management, Inc.
$4.9M
164.2KReducedQ1 2026
22Schonfeld Strategic Advisors LLC
$3.7M
123.8KReducedQ1 2026
23ALPS ADVISORS INC
$1.1M
36.5KReducedQ1 2026
24EXCHANGE TRADED CONCEPTS, LLC
$1.0M
34.3KNewQ1 2026
25SOROS FUND MANAGEMENT LLC
$779K
30.0KNewQ3 2024

Fund activity — latest quarter

Opened (NEW)
22
funds
Added
7
funds
Reduced
13
funds
Exited
6
funds

Insider activity (Form 4)

No Form 4 insider transactions on file yet.

Institutional ownership over time

52 funds+50 since Q3 2024
02652Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $813M

Funds that own MBX also own

CompanyCo-held byCombined value
Eli Lilly & CoLLY44 funds$38.5B
Intuitive Surgical IncISRG43 funds$9.1B
Boston Scientific CorpBSX43 funds$5.4B
Broadcom LtdAVGO42 funds$71.0B
Thermo Fisher Scientific IncTMO42 funds$10.0B
CVS Health CorpCVS42 funds$5.2B
Alnylam Pharmaceuticals IncALNY42 funds$1.7B
NVIDIA CorpNVDA41 funds$202.9B
Microsoft CorpMSFT41 funds$132.0B
Amazon.com IncAMZN41 funds$94.4B
Alphabet IncGOOGL41 funds$77.4B
Meta Platforms Inc AMETA41 funds$59.3B

Ranked by how many of MBX's institutional holders also hold each name — a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

0 shown

No filings captured for this ticker in the live stream yet.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MBX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.