MBX

MBX Biosciences, Inc. Common Stock
MBX

Overview Fund Activity

86 hedge funds and large institutions have $420M invested in MBX Biosciences, Inc. Common Stock in 2025 Q2 according to their latest regulatory filings, with 20 funds opening new positions, 39 increasing their positions, 14 reducing their positions, and 12 closing their positions.

Holders
86
Holders Change
+7
Holders Change %
+8.86%
% of All Funds
1.15%
Holding in Top 10
3
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+200%
% of All Funds
0.04%
New
20
Increased
39
Reduced
14
Closed
12
Calls
$590K
Puts
$981K
Net Calls
-$391K
Net Calls Change
-$391K

Top Buyers

1
Point72 Asset Management
1
Point72 Asset Management
Connecticut
$11.1M
2
Millennium Management
2
Millennium Management
New York
$8.75M
3
PHP
3
Parkman Healthcare Partners
Connecticut
$9.95M
4
SSA
4
Schonfeld Strategic Advisors
New York
$7.2M
5
Vanguard Group
5
Vanguard Group
Pennsylvania
$11.9M

Top Sellers

1
RCM
1
RA Capital Management
Massachusetts
$4.31M
2
DTC
2
Deep Track Capital
Connecticut
$25M
3
Wellington Management Group
3
Wellington Management Group
Massachusetts
$25.9M
4
JPMorgan Chase & Co
4
JPMorgan Chase & Co
New York
$93.4K
5
AAA
5
Affinity Asset Advisors
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
FLSM
1
Frazier Life Sciences Management
California
$68.3M 5,985,347 – –
O
2
OrbiMed
New York
$45.7M 4,002,887 – –
NMC
3
NEA Management Company
Maryland
$41.2M 3,614,486 – –
Wellington Management Group
4
Wellington Management Group
Massachusetts
$25.9M 2,266,628 -371,893 -14%
DTC
5
Deep Track Capital
Connecticut
$25M 2,188,592 -830,343 -28%
NA
6
NVP Associates
California
$24.4M 2,136,335 – –
DCM
7
Driehaus Capital Management
Illinois
$17.9M 1,571,906 -7,301 -0.5%
T. Rowe Price Associates
8
T. Rowe Price Associates
Maryland
$15.4M 1,346,910 +245,994 +22%
MB
9
MPM BioImpact
Massachusetts
$14.8M 1,294,416 +161,466 +14%
EC
10
EcoR1 Capital
California
$13.1M 1,149,794 -109,479 -9%
Vanguard Group
11
Vanguard Group
Pennsylvania
$11.9M 1,043,684 +378,121 +57%
BlackRock
12
BlackRock
New York
$11.5M 1,011,546 +228,504 +29%
Point72 Asset Management
13
Point72 Asset Management
Connecticut
$11.1M 973,787 +863,305 +781%
WP
14
Woodline Partners
California
$10.3M 901,103 +23,642 +3%
PHP
15
Parkman Healthcare Partners
Connecticut
$9.95M 871,933 +543,610 +166%
Millennium Management
16
Millennium Management
New York
$8.75M 766,840 +596,400 +350%
CAM
17
Cormorant Asset Management
Massachusetts
$7.99M 700,000 – –
TCM
18
TCG Crossover Management
California
$7.42M 650,000 – –
SSA
19
Schonfeld Strategic Advisors
New York
$7.2M 631,413 +430,771 +215%
Franklin Resources
20
Franklin Resources
California
$5.65M 494,852 +125,537 +34%
RCM
21
RA Capital Management
Massachusetts
$4.31M 377,841 -1,133,493 -75%
Geode Capital Management
22
Geode Capital Management
Massachusetts
$3.98M 348,447 +73,989 +27%
State Street
23
State Street
Massachusetts
$3.03M 265,119 +87,899 +50%
SCM
24
Sio Capital Management
New York
$2.75M 241,000 +241,000 New
OM
25
Opaleye Management
Massachusetts
$2.73M 239,319 -10,681 -4%
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