MBX

MBX Biosciences

157 hedge funds and large institutions have $1.57B invested in MBX Biosciences in 2026 Q1 according to their latest regulatory filings, with 39 funds opening new positions, 43 increasing their positions, 47 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

more ownership

Funds ownership:

3% more capital invested

Capital invested by funds: $1.53B → $1.57B (+$40.7M)

9% less repeat investments, than reductions

Existing positions increased: 43 | Existing positions reduced: 47

14% less funds holding in top 10

Funds holding in top 10: 76 (-1)

Holders
157
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.68M
Puts
$1.46M
Net Calls
Net Calls Change

Top Buyers

1 +$99.3M
2 +$55.2M
3 +$37.3M
4
CP
Caligan Partners
New York
+$28.9M
5
B
Braidwell
Connecticut
+$16.1M

Top Sellers

1 -$45.8M
2 -$21.5M
3 -$16.7M
4
DCM
Driehaus Capital Management
Illinois
-$13.3M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$13M
Name Holding Trade Value Shares
Change
Change in
Stake
SLAM
76
Swiss Life Asset Management
$657K
Cerity Partners
77
Cerity Partners
New York
$632K
Legal & General Group
78
Legal & General Group
United Kingdom
$578K
State of Wisconsin Investment Board
79
State of Wisconsin Investment Board
Wisconsin
$575K
KWM
80
Koa Wealth Management
California
$535K
EGM
81
Engineers Gate Manager
New York
$519K
Qube Research & Technologies (QRT)
82
Qube Research & Technologies (QRT)
United Kingdom
$513K
VGA
83
Vanguard Global Advisers
Pennsylvania
$478K
MIM
84
MetLife Investment Management
New Jersey
$478K
VAM
85
Vanguard Asset Management
$440K
OF
86
Optimize Financial
California
$433K
Citigroup
87
Citigroup
New York
$403K
Mirae Asset Global ETFs Holdings
88
Mirae Asset Global ETFs Holdings
Hong Kong
$398K
JF
89
Jump Financial
Illinois
$379K
Barclays
90
Barclays
United Kingdom
$353K
HS
91
HighVista Strategies
Massachusetts
$342K
Canada Pension Plan Investment Board
92
Canada Pension Plan Investment Board
Ontario, Canada
$325K
Wells Fargo
93
Wells Fargo
California
$321K
BNP Paribas Financial Markets
94
BNP Paribas Financial Markets
France
$310K
Janus Henderson Group
95
Janus Henderson Group
United Kingdom
$308K
Verition Fund Management
96
Verition Fund Management
Connecticut
$305K
ACM
97
Aquatic Capital Management
Illinois
$303K
Susquehanna International Group
98
Susquehanna International Group
Pennsylvania
$283K
VIA
99
Virtus Investment Advisers
Connecticut
$273K
New York State Common Retirement Fund
100
New York State Common Retirement Fund
New York
$269K