CSTL icon

Castle Biosciences
CSTL

Overview Fund Activity

152 hedge funds and large institutions have $542M invested in Castle Biosciences in 2025 Q2 according to their latest regulatory filings, with 16 funds opening new positions, 70 increasing their positions, 44 reducing their positions, and 42 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
152
Holders Change
-28
Holders Change %
-15.56%
% of All Funds
2.04%
Holding in Top 10
–
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-100%
% of All Funds
–
New
16
Increased
70
Reduced
44
Closed
42
Calls
$22K
Puts
$4K
Net Calls
+$18K
Net Calls Change
-$70K

Top Buyers

1
Citadel Advisors
1
Citadel Advisors
Florida
$18.1M
2
B
2
Braidwell
Connecticut
$16.8M
3
NL
3
Nuveen LLC
North Carolina
$21.9M
4
Principal Financial Group
4
Principal Financial Group
Iowa
$36.7M
5
UBS Group
5
UBS Group
Switzerland
$7.43M

Top Sellers

1
PWAM
1
Park West Asset Management
California
$0
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$8.32M
3
BG
3
Bellevue Group
Switzerland
$0
4
CSS
4
Cubist Systematic Strategies
Connecticut
$0
5
Point72 Asset Management
5
Point72 Asset Management
Connecticut
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$64.4M +$3.49M +171,139 +6%
Vanguard Group
2
Vanguard Group
Pennsylvania
$44.3M +$2.5M +122,463 +6%
Principal Financial Group
3
Principal Financial Group
Iowa
$36.7M +$6.76M +331,101 +23%
PCM
4
Portolan Capital Management
Massachusetts
$30.4M +$4.58M +224,349 +18%
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$28.1M +$3.63M +177,783 +15%
NL
6
Nuveen LLC
North Carolina
$21.9M +$8.19M +401,296 +60%
WA
7
Wasatch Advisors
Utah
$21.4M +$1.05M +51,318 +5%
Citadel Advisors
8
Citadel Advisors
Florida
$18.1M +$12.9M +630,133 +244%
B
9
Braidwell
Connecticut
$16.8M +$9.34M +457,488 +125%
Allianz Asset Management
10
Allianz Asset Management
Germany
$14.6M +$1.52M +74,265 +12%
State Street
11
State Street
Massachusetts
$14.5M -$150K -7,341 -1%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$14.1M +$818K +40,073 +6%
Renaissance Technologies
13
Renaissance Technologies
New York
$13.7M -$627K -30,700 -4%
Schroder Investment Management Group
14
Schroder Investment Management Group
United Kingdom
$13.2M +$1.05M +51,483 +9%
PCM
15
Palisade Capital Management
New Jersey
$11.7M +$1.74M +85,148 +17%
Acadian Asset Management
16
Acadian Asset Management
Massachusetts
$11.1M -$2.69M -131,816 -19%
Millennium Management
17
Millennium Management
New York
$8.75M +$3.55M +173,648 +68%
Wellington Management Group
18
Wellington Management Group
Massachusetts
$8.32M -$8.6M -421,317 -51%
Bank of America
19
Bank of America
North Carolina
$7.82M +$150K +7,365 +2%
Ameriprise
20
Ameriprise
Minnesota
$7.61M +$955K +46,770 +14%
UBS Group
21
UBS Group
Switzerland
$7.43M +$6.43M +315,089 +646%
PHP
22
Parkman Healthcare Partners
Connecticut
$7.19M +$34.9K +1,711 +0.5%
TI
23
Trexquant Investment
Connecticut
$6.5M +$1.41M +69,081 +28%
SAM
24
Silvercrest Asset Management
New York
$5.72M +$1.66M +81,157 +41%
Northern Trust
25
Northern Trust
Illinois
$5.71M +$130K +6,356 +2%
1
2 3 4 5