MBX

MBX Biosciences, Inc. Common Stock
MBX

Overview Fund Activity

87 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, 40 increasing their positions, 14 reducing their positions, and 12 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
87
Holders Change
+8
Holders Change %
+10.13%
% of All Funds
1.17%
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
40
Reduced
14
Closed
12
Calls
$848K
Puts
$1.63M
Net Calls
-$779K
Net Calls Change
-$779K

Top Buyers

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

Top Sellers

1
RCM
RA Capital Management
Massachusetts
$4.31M
2
DTC
Deep Track Capital
Connecticut
$25M
3
Wellington Management Group
Wellington Management Group
Massachusetts
$25.9M
4
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$93.4K
5
AAA
Affinity Asset Advisors
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
FLSM
1
Frazier Life Sciences Management
California
$68.3M – – –
O
2
OrbiMed
New York
$45.7M – – –
NMC
3
NEA Management Company
Maryland
$41.2M – – –
Wellington Management Group
4
Wellington Management Group
Massachusetts
$25.9M -$4.24M -371,893 -14%
DTC
5
Deep Track Capital
Connecticut
$25M -$9.47M -830,343 -28%
NA
6
NVP Associates
California
$24.4M – – –
DCM
7
Driehaus Capital Management
Illinois
$17.9M -$83.3K -7,301 -0.5%
T. Rowe Price Associates
8
T. Rowe Price Associates
Maryland
$15.4M +$2.81M +245,994 +22%
MB
9
MPM BioImpact
Massachusetts
$14.8M +$1.84M +161,466 +14%
EC
10
EcoR1 Capital
California
$13.1M -$1.25M -109,479 -9%
Vanguard Group
11
Vanguard Group
Pennsylvania
$11.9M +$4.31M +378,121 +57%
BlackRock
12
BlackRock
New York
$11.5M +$2.61M +228,504 +29%
Point72 Asset Management
13
Point72 Asset Management
Connecticut
$11.1M +$9.85M +863,305 +781%
WP
14
Woodline Partners
California
$10.3M +$270K +23,642 +3%
PHP
15
Parkman Healthcare Partners
Connecticut
$9.95M +$6.2M +543,610 +166%
Millennium Management
16
Millennium Management
New York
$8.75M +$6.8M +596,400 +350%
CAM
17
Cormorant Asset Management
Massachusetts
$7.99M – – –
TCM
18
TCG Crossover Management
California
$7.42M – – –
SSA
19
Schonfeld Strategic Advisors
New York
$7.2M +$4.92M +430,771 +215%
Franklin Resources
20
Franklin Resources
California
$5.65M +$1.43M +125,537 +34%
RCM
21
RA Capital Management
Massachusetts
$4.31M -$12.9M -1,133,493 -75%
Geode Capital Management
22
Geode Capital Management
Massachusetts
$3.98M +$844K +73,989 +27%
State Street
23
State Street
Massachusetts
$3.03M +$1M +87,899 +50%
SCM
24
Sio Capital Management
New York
$2.75M +$2.75M +241,000 New
OM
25
Opaleye Management
Massachusetts
$2.73M -$122K -10,681 -4%
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