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.
13F holders, Q1 2024
Institutional positions in Castle Biosciences Inc as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 151
- +1 vs. Q4 2023
- Shares held
- 25.0M
- +1.13M (+4.8%) vs. Q4 2023
- Total value
- $553.2M
- +$38.6M (+7.5%) vs. Q4 2023
- New holders
- 18
- 54 more added
- Sold out
- 17
- 55 more reduced
3 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CSTL on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 176 | $653.8M |
| Q1 2026 | 186 | $677.8M |
| Q4 2025 | 195 | $1.06B |
| Q3 2025 | 173 | $608.3M |
| Q2 2025 | 152 | $541.8M |
| Q1 2025 | 180 | $516.3M |
| Q4 2024 | 197 | $706.4M |
| Q3 2024 | 185 | $736.9M |
| Q2 2024 | 159 | $549.4M |
| Q1 2024 | 151 | $553.2M |
| Q4 2023 | 153 | $515.4M |
| Q3 2023 | 135 | $391.0M |
| Q2 2023 | 130 | $316.6M |
| Q1 2023 | 148 | $501.9M |
| Q4 2022 | 153 | $522.0M |
| Q3 2022 | 157 | $569.8M |
| Q2 2022 | 146 | $495.0M |
| Q1 2022 | 160 | $1.02B |
| Q4 2021 | 159 | $918.6M |
| Q3 2021 | 188 | $1.42B |
| Q2 2021 | 182 | $1.52B |
| Q1 2021 | 175 | $1.46B |
Institutions, Q1 2024
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Truist Financial Corp | 11,797 | $261.3K | 0.00% | +167+1.4% | Added |
| Mirae Asset Global Investments Co., Ltd. | 11,732 | $260.4K | 0.00% | +143+1.2% | Added |
| State Board of Administration of Florida Retirement System | 10,954 | $248.9K | 0.00% | +10,954 | New |
| Royce & Associates LP | 11,125 | $246.4K | 0.00% | −20,517−64.8% | Reduced |
| Corton Capital Inc. | 11,123 | $246.4K | 0.09% | −1,220−9.9% | Reduced |
| Allspring Global Investments Holdings, LLC | 10,862 | $240.6K | 0.00% | +5,123+89.3% | Added |
| Lido Advisors, LLC | 10,524 | $233.1K | 0.00% | 00.0% | Unchanged |
| Versor Investments LP | 10,238 | $226.8K | 0.05% | −3,905−27.6% | Reduced |
| Centiva Capital, LP | 9,502 | $210.5K | 0.01% | −3,056−24.3% | Reduced |
| Manufacturers Life Insurance Company, The | 9,447 | $209.3K | 0.00% | −503−5.1% | Reduced |
| Wells Fargo & Company | 9,426 | $208.8K | 0.00% | +1,479+18.6% | Added |
| Janus Henderson Group PLC | 9,266 | $205.0K | 0.00% | −40.0% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,930 | $197.8K | 0.00% | +738+9.0% | Added |
| Denali Advisors LLC | 8,400 | $186.1K | 0.05% | +8,400 | New |
| First Horizon Advisors, Inc. | 7,853 | $173.9K | 0.01% | 00.0% | Unchanged |
| Citigroup Inc | 6,654 | $147.4K | 0.00% | +1,069+19.1% | Added |
| Advisor Group Holdings, Inc. | 5,456 | $120.8K | 0.00% | −2,883−34.6% | Reduced |
| China Universal Asset Management Co., Ltd. | 5,297 | $117.3K | 0.01% | +2,187+70.3% | Added |
| Quest Partners LLC | 4,028 | $89.2K | 0.02% | +4,028 | New |
| Assetmark, Inc | 3,958 | $87.7K | 0.00% | −778−16.4% | Reduced |
| Royal Bank of Canada | 3,152 | $70.0K | 0.00% | −6,687−68.0% | Reduced |
| RiverPark Advisors, LLC | 2,861 | $63.4K | 0.05% | +2,242+362.2% | Added |
| Ameritas Investment Partners, Inc. | 2,450 | $54.3K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 1,410 | $31.2K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 1,100 | $24.4K | 0.00% | −5−0.5% | Reduced |
| Ronald Blue Trust, Inc. | 956 | $21.2K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 872 | $19.3K | 0.00% | −73−7.7% | Reduced |
| Amalgamated Bank | 833 | $18.0K | 0.00% | −1,850−69.0% | Reduced |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 731 | $16.2K | 0.00% | +5+0.7% | Added |
| Arcadia Investment Management Corp | 522 | $11.6K | 0.00% | 00.0% | Unchanged |
| Macroview Investment Management LLC | 506 | $11.2K | 0.01% | +373+280.5% | Added |
| US Bancorp | 466 | $10.3K | 0.00% | +165+54.8% | Added |
| Nisa Investment Advisors, LLC | 328 | $7.26K | 0.00% | +8+2.5% | Added |
| Hillsdale Investment Management Inc. | 300 | $6.64K | 0.00% | +300 | New |
| MCF Advisors LLC | 258 | $5.71K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 190 | $4.21K | 0.00% | −5,153−96.4% | Reduced |
| Lindbrook Capital, LLC | 172 | $3.81K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 121 | $2.68K | 0.00% | +100+476.2% | Added |
| Daiwa Securities Group Inc. | 86 | $2.00K | 0.00% | 00.0% | Unchanged |
| BFSG, LLC | 90 | $1.99K | 0.00% | 00.0% | Unchanged |
| Principal Securities, Inc. | 54 | $1.20K | 0.00% | −129−70.5% | Reduced |
| Valley National Advisers Inc | 85 | $1.00K | 0.00% | +20+30.8% | Added |
| Group One Trading, L.P. | 41 | $908 | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 38 | $842 | 0.00% | 00.0% | Unchanged |
| Missouri Trust & Investment Co | 19 | $421 | 0.00% | 00.0% | Unchanged |
| Fairman Group, LLC | 13 | $288 | 0.00% | 00.0% | Unchanged |
| Colonial Trust Advisors | 6 | $133 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 5 | $111 | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 1 | $22 | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 6 | $0 | 0.00% | +6 | New |
| CWM, LLC | 12 | $0 | 0.00% | +12 | New |
| Numerai GP LLC | 0 | $0 | 0.00% | −43,979−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −43,351−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −26,600−100.0% | Sold out |
| Fan Yu | 0 | $0 | 0.00% | −22,503−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −20,436−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −14,145−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −12,193−100.0% | Sold out |
| Keebeck Alpha, LP | 0 | $0 | 0.00% | −12,193−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −12,150−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −10,187−100.0% | Sold out |
| WuXi AppTec Co., Ltd. | 0 | $0 | 0.00% | −6,636−100.0% | Sold out |
| O'Dell Group, LLC | 0 | $0 | 0.00% | −2,041−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −930−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| Sound Income Strategies, LLC | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| Tfo-TDC, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| GW&K Investment Management, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Putnam Investments LLC | – | – | – | – | Not filed |
| DFPG Investments, LLC | – | – | – | – | Not filed |
| Coppell Advisory Solutions LLC | – | – | – | – | Not filed |