Type / Class
Equity / Common Stock, $0.001 par value
Shares outstanding
29,378,292
Total 13F shares
27,290,205
Share change
+817,673
Total reported value
$1,061,243,367
Put/Call ratio
0%
Price per share
$38.90
Number of holders
193
Value change
+$35,479,717
Number of buys
98
Number of sells
84

Institutional Holders of CASTLE BIOSCIENCES INC - Common Stock, $0.001 par value (CSTL) as of Q4 2025

As of 31 Dec 2025, CASTLE BIOSCIENCES INC - Common Stock, $0.001 par value (CSTL) was held by 193 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 27,290,205 shares. The largest 10 holders included BlackRock, Inc., VANGUARD GROUP INC, RTW INVESTMENTS, LP, PRINCIPAL FINANCIAL GROUP INC, Portolan Capital Management, LLC, DIMENSIONAL FUND ADVISORS LP, SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC, STATE STREET CORP, GEODE CAPITAL MANAGEMENT, LLC, and AIGH Capital Management LLC. This page lists 193 institutional shareholders reporting positions in this security for the Q4 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.