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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 %
California State Teachers Retirement System (CalSTRS)
76
California State Teachers Retirement System (CalSTRS)
California
$503K – – –
Mackenzie Financial
77
Mackenzie Financial
Ontario, Canada
$494K -$66.5K -3,256 -12%
Truist Financial
78
Truist Financial
North Carolina
$491K +$35K +1,715 +8%
Fidelity Investments
79
Fidelity Investments
Massachusetts
$490K +$466K +22,844 +1,976%
JF
80
Jump Financial
Illinois
$446K +$446K +21,858 New
HCA
81
Harbor Capital Advisors
Illinois
$417K +$77.8K +3,804 +23%
Wells Fargo
82
Wells Fargo
California
$415K +$80.7K +3,953 +24%
FBT
83
First Bank & Trust
South Dakota
$407K +$98.3K +4,815 +32%
ACM
84
Aquatic Capital Management
Illinois
$394K +$394K +19,280 New
II
85
Inspire Investing
Idaho
$390K +$40.1K +1,964 +11%
HF
86
HRT Financial
New York
$384K -$193K -9,459 -33%
OHIS
87
Oak Harvest Investment Services
Texas
$345K – – –
AACP
88
Advantage Alpha Capital Partners
California
$327K -$77.3K -3,784 -19%
MIM
89
MetLife Investment Management
New Jersey
$324K +$3.1K +152 +1%
SGI
90
Summit Global Investments
Utah
$320K -$307K -14,991 -49%
Mirae Asset Global ETFs Holdings
91
Mirae Asset Global ETFs Holdings
Hong Kong
$318K +$2.45K +120 +0.8%
Citigroup
92
Citigroup
New York
$287K -$993K -48,629 -78%
SQA
93
Simon Quick Advisors
New Jersey
$280K +$2.08K +102 +0.8%
IIM
94
INTECH Investment Management
Florida
$251K -$77.4K -3,789 -24%
Zurich Cantonal Bank
95
Zurich Cantonal Bank
Switzerland
$247K +$163 +8 +0.1%
Two Sigma Advisers
96
Two Sigma Advisers
New York
$245K -$1.17M -57,200 -83%
SO
97
STRS Ohio
Ohio
$239K -$135K -6,600 -36%
DWM
98
Diversify Wealth Management
Utah
$238K -$15.1K -780 -6%
SI
99
Stephens Inc
Arkansas
$233K -$46K -2,253 -17%
Creative Planning
100
Creative Planning
Kansas
$227K +$225 +11 +0.1%
2 3
4
5 6