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Castle Biosciences
CSTL

Overview Fund Activity

180 hedge funds and large institutions have $516M invested in Castle Biosciences in 2025 Q1 according to their latest regulatory filings, with 30 funds opening new positions, 76 increasing their positions, 54 reducing their positions, and 43 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
180
Holders Change
-17
Holders Change %
-8.63%
% of All Funds
2.45%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
30
Increased
76
Reduced
54
Closed
43
Calls
$200K
Puts
$112K
Net Calls
+$88K
Net Calls Change
-$2.62M

Top Buyers

1
Schroder Investment Management Group
1
Schroder Investment Management Group
United Kingdom
$11.9M
2
PWAM
2
Park West Asset Management
California
$11.1M
3
PCM
3
Portolan Capital Management
Massachusetts
$25.3M
4
B
4
Braidwell
Connecticut
$7.31M
5
Allianz Asset Management
5
Allianz Asset Management
Germany
$12.8M

Top Sellers

1
WA
1
Wasatch Advisors
Utah
$20M
2
UBS Group
2
UBS Group
Switzerland
$976K
3
Citadel Advisors
3
Citadel Advisors
Florida
$5.17M
4
BG
4
Bellevue Group
Switzerland
$6.03M
5
SCM
5
Soleus Capital Management
Connecticut
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
GFM
151
GF Fund Management
China
$14.3K +$2.56K +128 +22%
HFS
152
Hughes Financial Services
Virginia
$8.6K +$8.6K +435 New
CCM
153
Coldstream Capital Management
Washington
$6.85K +$6.85K +342 New
Nisa Investment Advisors
154
Nisa Investment Advisors
Missouri
$6.73K -$2.18K -109 -24%
SCM
155
Sterling Capital Management
North Carolina
$6.33K -$5.13K -256 -45%
GI
156
GAMMA Investing
California
$4.36K -$80 -4 -2%
Osaic Holdings
157
Osaic Holdings
Arizona
$4.04K +$3.76K +188 +1,343%
TWD
158
True Wealth Design
Ohio
$4.03K +$4.01K +200 +20,000%
LC
159
Lindbrook Capital
California
$3.58K +$140 +7 +4%
CIAM
160
Caitong International Asset Management
Hong Kong
$3.12K +$3.12K +156 New
RF
161
Rossby Financial
Florida
$2.93K +$2.93K +142 New
PNC Financial Services Group
162
PNC Financial Services Group
Pennsylvania
$2.4K +$2.4K +120 New
PS
163
Principal Securities
Iowa
$2.4K – – –
Daiwa Securities Group
164
Daiwa Securities Group
Japan
$2K – – –
BL
165
BFSG LLC
California
$1.8K – – –
SS
166
SBI Securities
Japan
$1.16K +$160 +8 +16%
MPWT
167
MassMutual Private Wealth & Trust
Connecticut
$1.02K -$781 -39 -43%
SWM
168
Spire Wealth Management
Virginia
$1K +$1K +50 New
Simplex Trading
169
Simplex Trading
Illinois
$1K -$30.6K -2,967 -97%
EWA
170
EverSource Wealth Advisors
Alabama
$941 +$761 +38 +422%
WSFS
171
Wilmington Savings Fund Society
Delaware
$921 +$921 +46 New
SPIA
172
Steward Partners Investment Advisory
New York
$621 – – –
Jones Financial Companies
173
Jones Financial Companies
Missouri
$499 – – –
US Bancorp
174
US Bancorp
Minnesota
$480 -$23.6K -1,178 -98%
PFBT
175
Parkside Financial Bank & Trust
Missouri
$401 +$401 +20 New
5 6
7
8 9