Castle Biosciences Inc
CSTL- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001447362
In the last 90 days, Castle Biosciences Inc insiders filed 0 open-market purchases and 21 sales; 176 institutions reported holding it in 13F filings for Q2 2026, worth $653.8M in total; no superinvestor holds it.
Q4 2024 vs. Q3 2024
How the institutions holding Castle Biosciences Inc changed between Q3 2024 and Q4 2024.
All holders in Q4 2024All holders in Q3 2024
| Measure | Q3 2024 | Of which not filed for Q4 2024 | Q4 2024 | Change |
|---|---|---|---|---|
| Holders | 185 | 1 | 197 | +13 |
| Shares | 25.8M | 2 | 26.5M | +681.4K (+2.6%) |
| Value | $736.9M | $58 | $706.4M | −$30.5M (−4.1%) |
1 institution that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so the changes leave them out.
New holders (40)
Institutions that held Castle Biosciences Inc at the end of Q4 2024 but not at the end of Q3 2024.
Sold out (27)
Institutions that held Castle Biosciences Inc at the end of Q3 2024 and filed for Q4 2024 without it.
Not filed for Q4 2024 yet (1)
Institutions that held Castle Biosciences Inc at the end of Q3 2024 and haven't filed a 13F for Q4 2024. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q3 2024 | Value, Q3 2024 |
|---|---|---|
| Planning Capital Management Corp | 2 | $58 |