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 20 sales; 176 institutions reported holding it in 13F filings for Q2 2026, worth $653.8M in total; no superinvestor holds it.
Q3 2021 vs. Q2 2021
How the institutions holding Castle Biosciences Inc changed between Q2 2021 and Q3 2021.
All holders in Q3 2021All holders in Q2 2021
| Measure | Q2 2021 | Q3 2021 | Change |
|---|---|---|---|
| Holders | 182 | 188 | +6 |
| Shares | 20.8M | 21.5M | +701.3K (+3.4%) |
| Value | $1.52B | $1.42B | −$98.8M (−6.5%) |
New holders (20)
Institutions that held Castle Biosciences Inc at the end of Q3 2021 but not at the end of Q2 2021.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Millennium Management LLC | 403,359 | $26.8M | 0.04% |
| CastleArk Alternatives, LLC | 147,867 | $9.83M | 0.38% |
| Point72 Asset Management, L.P. | 103,179 | $6.86M | 0.03% |
| Fred Alger Management, LLC | 80,293 | $5.34M | 0.01% |
| Dimensional Fund Advisors LP | 54,317 | $3.61M | 0.00% |
| Voloridge Investment Management, LLC | 18,169 | $1.21M | 0.01% |
| Susquehanna Fundamental Investments, LLC | 17,980 | $1.20M | 0.02% |
| Jane Street Group, LLC | 16,423 | $1.09M | 0.00% |
| Claybrook Capital, LLC | 10,026 | $667.0K | 0.34% |
| Old Mission Capital LLC | 7,500 | $499.0K | 0.02% |
| D. E. Shaw & Co., Inc. | 7,104 | $472.0K | 0.00% |
| Ergoteles LLC | 5,400 | $359.0K | 0.01% |
| Level Four Advisory Services, LLC | 5,265 | $350.0K | 0.04% |
| HRT Financial LP | 4,725 | $314.0K | 0.00% |
| Versor Investments LP | 3,700 | $246.0K | 0.01% |
| Teacher Retirement System of Texas | 3,193 | $212.0K | 0.00% |
| Amundi | 661 | $44.0K | 0.00% |
| Harbor Investment Advisory, LLC | 542 | $36.0K | 0.00% |
| Clearstead Advisors, LLC | 116 | $8.00K | 0.00% |
| Group One Trading, L.P. | 100 | $7.00K | 0.00% |
Sold out (14)
Institutions that held Castle Biosciences Inc at the end of Q2 2021 and filed for Q3 2021 without it.
| Institution | Shares, Q2 2021 | Value, Q2 2021 |
|---|---|---|
| Axiom Investors LLC | 31,310 | $2.30M |
| Susquehanna International Group, LLP | 14,477 | $1.06M |
| Portolan Capital Management, LLC | 9,127 | $669.0K |
| Pentwater Capital Management LP | 5,000 | $367.0K |
| Commerce Bank | 3,205 | $235.0K |
| Dynamic Technology Lab Private Ltd | 3,140 | $230.0K |
| Squarepoint Ops LLC | 2,879 | $211.0K |
| NinePointTwo Capital | 2,819 | $206.0K |
| Advisory Services Network, LLC | 1,641 | $120.0K |
| Leonteq Securities AG | 424 | $31.1K |
| FORA Capital, LLC | 416 | $31.0K |
| Wagner Wealth Management, LLC | 85 | $6.00K |
| Panagora Asset Management Inc | 28 | $2.00K |
| Parallax Volatility Advisers, L.P. | 22 | $2.00K |