Tower Research Capital LLC (Trc) Castle Biosciences Inc Transaction History
Tower Research Capital LLC (Trc)
- $3.53 Billion
 - Q2 2025
 
A detailed history of Tower Research Capital LLC (Trc) transactions in Castle Biosciences Inc stock. As of the latest transaction made, Tower Research Capital LLC (Trc) holds 2,791 shares of CSTL stock, worth $67,570. This represents 0.0% of its overall portfolio holdings.
Number of Shares
2,791
              Previous 782
              
        
           256.91%
        
      
          
        Holding current value
$67,570
            Previous $15,000
            
        
           273.33%
        
      
          
        % of portfolio
0.0%
            Previous 0.0%
          
        Shares
	  23 transactions
	
  Others Institutions Holding CSTL
# of Institutions
170Shares Held
27.9MCall Options Held
0Put Options Held
0- 
    
      Black Rock Inc. New York, NY3.04MShares$73.7 Million0.0% of portfolio
 - 
    
      Vanguard Group Inc Valley Forge, PA2.17MShares$52.5 Million0.0% of portfolio
 - 
    
      Principal Financial Group Inc Des Moines, IA1.8MShares$43.6 Million0.02% of portfolio
 - 
    
      Portolan Capital Management, LLC Boston, MA1.49MShares$36.1 Million2.2% of portfolio
 - 
    
      Dimensional Fund Advisors LP Austin, TX1.38MShares$33.4 Million0.01% of portfolio
 
About CASTLE BIOSCIENCES INC
- Ticker CSTL
 - Exchange NASDAQ
 - Sector Healthcare
 - Industry Diagnostics & Research
 - Shares Outstandng 26,297,000
 - Market Cap $637M
 - Description
 - Castle Biosciences, Inc., a commercial-stage diagnostics company, focuses to provide diagnostic and prognostic testing services for dermatological cancers. Its lead product is DecisionDx-Melanoma, a multi-gene expression profile (GEP) test to identify the risk of metastasis for patients diagnosed with invasive cutaneous melanoma. The company als...